Sensor Review最新文献_第5页

Investigation on the influence of wall thickness on the reception signal in a PFA-made ultrasonic flow sensor 研究壁厚对 PFA 超声波流量传感器接收信号的影响

IF 1.6 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Sensor Review

Pub Date : 2024-03-14 DOI: 10.1108/sr-03-2023-0055

Liang Hu, Chengwei Liu, Rui Su, Weiting Liu

Purpose

In a coaxial ultrasonic flow sensor (UFS), wall thickness is a vital parameter of the measurement tube, especially those with small inner diameters. The paper aims to investigate the influence of wall thickness on the transient signal characteristics in an UFS.

Design/methodology/approach

First, the problem was researched experimentally using a series of measurement tubes with different wall thicknesses. Second, a finite element method–based model in the time domain was established to validate the experimental results and further discussion. Finally, the plane wave assumption and oblique incident theory were used to analyze the wave propagation in the tube, and an idea of wave packet superposition was proposed to reveal the mechanism of the influence of wall thickness.

Findings

Both experimental and simulated results showed that the signal amplitude decreased periodically as the wall thickness increased, and the corresponding waveform varied dramatically. Based on the analysis of wave propagation in the measurement tube, a formula concerning the phase difference between wave packets was derived to characterize the signal variation.

Originality/value

This paper provides a new and explicit explanation of the influence of wall thickness on the transient signal in a co-axial UFS. Both experimental and simulated results were presented, and the mechanism was clearly described.

目的在同轴超声波流量传感器（UFS）中，壁厚是测量管的一个重要参数，尤其是那些内径较小的测量管。本文旨在研究壁厚对 UFS 瞬态信号特性的影响。首先，使用一系列不同壁厚的测量管对该问题进行了实验研究。其次，建立了基于有限元法的时域模型，以验证实验结果和进一步讨论。最后，利用平面波假设和斜入射理论分析了波在管内的传播，并提出了波包叠加的思想，揭示了壁厚的影响机理。实验和模拟结果都表明，随着壁厚的增加，信号幅度呈周期性下降，相应的波形也发生了很大变化。基于对测量管中波传播的分析，推导出了一个有关波包之间相位差的公式，以描述信号变化的特征。文中给出了实验和模拟结果，并清楚地描述了其中的机理。

{"title":"Investigation on the influence of wall thickness on the reception signal in a PFA-made ultrasonic flow sensor","authors":"Liang Hu, Chengwei Liu, Rui Su, Weiting Liu","doi":"10.1108/sr-03-2023-0055","DOIUrl":"https://doi.org/10.1108/sr-03-2023-0055","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>In a coaxial ultrasonic flow sensor (UFS), wall thickness is a vital parameter of the measurement tube, especially those with small inner diameters. The paper aims to investigate the influence of wall thickness on the transient signal characteristics in an UFS.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>First, the problem was researched experimentally using a series of measurement tubes with different wall thicknesses. Second, a finite element method–based model in the time domain was established to validate the experimental results and further discussion. Finally, the plane wave assumption and oblique incident theory were used to analyze the wave propagation in the tube, and an idea of wave packet superposition was proposed to reveal the mechanism of the influence of wall thickness.</p>\u0000<h3>Findings</h3>\u0000<p>Both experimental and simulated results showed that the signal amplitude decreased periodically as the wall thickness increased, and the corresponding waveform varied dramatically. Based on the analysis of wave propagation in the measurement tube, a formula concerning the phase difference between wave packets was derived to characterize the signal variation.</p>\u0000<h3>Originality/value</h3>\u0000<p>This paper provides a new and explicit explanation of the influence of wall thickness on the transient signal in a co-axial UFS. Both experimental and simulated results were presented, and the mechanism was clearly described.</p>","PeriodicalId":49540,"journal":{"name":"Sensor Review","volume":"24 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140129618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on interference compensation methods for color image sensors based on iterative learning 基于迭代学习的彩色图像传感器干扰补偿方法研究

IF 1.6 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Sensor Review

Pub Date : 2024-03-14 DOI: 10.1108/sr-12-2023-0662

Qiang Wen, Lele Chen, Jingwen Jin, Jianhao Huang, HeLin Wan

Purpose

Fixed mode noise and random mode noise always exist in the image sensor, which affects the imaging quality of the image sensor. The charge diffusion and color mixing between pixels in the photoelectric conversion process belong to fixed mode noise. This study aims to improve the image sensor imaging quality by processing the fixed mode noise.

Design/methodology/approach

Through an iterative training of an ergoable long- and short-term memory recurrent neural network model, the authors obtain a neural network model able to compensate for image noise crosstalk. To overcome the lack of differences in the same color pixels on each template of the image sensor under flat-field light, the data before and after compensation were used as a new data set to further train the neural network iteratively.

Findings

The comparison of the images compensated by the two sets of neural network models shows that the gray value distribution is more concentrated and uniform. The middle and high frequency components in the spatial spectrum are all increased, indicating that the compensated image edges change faster and are more detailed (Hinton and Salakhutdinov, 2006; LeCun et al., 1998; Mohanty et al., 2016; Zang et al., 2023).

Originality/value

In this paper, the authors use the iterative learning color image pixel crosstalk compensation method to effectively alleviate the incomplete color mixing problem caused by the insufficient filter rate and the electric crosstalk problem caused by the lateral diffusion of the optical charge caused by the adjacent pixel potential trap.

目的图像传感器中始终存在固定模式噪声和随机模式噪声，它们会影响图像传感器的成像质量。光电转换过程中像素间的电荷扩散和颜色混合属于定模噪声。本研究旨在通过处理固定模式噪声来提高图像传感器的成像质量。设计/方法/途径作者通过对可擦除的长短期记忆递归神经网络模型进行迭代训练，获得了一种能够补偿图像噪声串扰的神经网络模型。为了克服平场光下图像传感器各模板上相同颜色像素缺乏差异的问题，研究人员将补偿前后的数据作为新的数据集，进一步对神经网络进行迭代训练。空间光谱中的中频和高频成分都有所增加，表明补偿后的图像边缘变化更快、更细致（Hinton 和 Salakhutdinov，2006 年；LeCun 等人，1998 年；Mohanty 等人，2016 年；Zang 等人，2023 年）、原创性/价值在本文中，作者利用迭代学习彩色图像像素串扰补偿方法，有效缓解了因滤波率不足导致的不完全混色问题，以及因相邻像素电位陷阱导致的光电荷横向扩散引起的电串扰问题。

{"title":"Research on interference compensation methods for color image sensors based on iterative learning","authors":"Qiang Wen, Lele Chen, Jingwen Jin, Jianhao Huang, HeLin Wan","doi":"10.1108/sr-12-2023-0662","DOIUrl":"https://doi.org/10.1108/sr-12-2023-0662","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>Fixed mode noise and random mode noise always exist in the image sensor, which affects the imaging quality of the image sensor. The charge diffusion and color mixing between pixels in the photoelectric conversion process belong to fixed mode noise. This study aims to improve the image sensor imaging quality by processing the fixed mode noise.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>Through an iterative training of an ergoable long- and short-term memory recurrent neural network model, the authors obtain a neural network model able to compensate for image noise crosstalk. To overcome the lack of differences in the same color pixels on each template of the image sensor under flat-field light, the data before and after compensation were used as a new data set to further train the neural network iteratively.</p>\u0000<h3>Findings</h3>\u0000<p>The comparison of the images compensated by the two sets of neural network models shows that the gray value distribution is more concentrated and uniform. The middle and high frequency components in the spatial spectrum are all increased, indicating that the compensated image edges change faster and are more detailed (Hinton and Salakhutdinov, 2006; LeCun <em>et al.</em>, 1998; Mohanty <em>et al.</em>, 2016; Zang <em>et al.</em>, 2023).</p>\u0000<h3>Originality/value</h3>\u0000<p>In this paper, the authors use the iterative learning color image pixel crosstalk compensation method to effectively alleviate the incomplete color mixing problem caused by the insufficient filter rate and the electric crosstalk problem caused by the lateral diffusion of the optical charge caused by the adjacent pixel potential trap.</p>","PeriodicalId":49540,"journal":{"name":"Sensor Review","volume":"35 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140127729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An optical-based measurement method for center distance between two double-hole components 基于光学的双孔元件中心距测量方法

IF 1.6 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Sensor Review

Pub Date : 2024-02-29 DOI: 10.1108/sr-06-2023-0197

Heng Liu, Yonghua Lu, Haibo Yang, Lihua Zhou, Qiang Feng

Purpose

In the context of fixed-wing aircraft wing assembly, there is a need for a rapid and precise measurement technique to determine the center distance between two double-hole components. This paper aims to propose an optical-based spatial point distance measurement technique using the spatial triangulation method. The purpose of this paper is to design a specialized measurement system, specifically a spherically mounted retroreflector nest (SMR nest), equipped with two laser displacement sensors and a rotary encoder as the core to achieve accurate distance measurements between the double holes.

Design/methodology/approach

To develop an efficient and accurate measurement system, the paper uses a combination of laser displacement sensors and a rotary encoder within the SMR nest. The system is designed, implemented and tested to meet the requirements of precise distance measurement. Software and hardware components have been developed and integrated for validation.

Findings

The optical-based distance measurement system achieves high precision at 0.04 mm and repeatability at 0.02 mm within a range of 412.084 mm to 1,590.591 mm. These results validate its suitability for efficient assembly processes, eliminating repetitive errors in aircraft wing assembly.

Originality/value

This paper proposes an optical-based spatial point distance measurement technique, as well as a unique design of a SMR nest and the introduction of two novel calibration techniques, all of which are validated by the developed software and hardware platform.

目的在固定翼飞机机翼装配中，需要一种快速、精确的测量技术来确定两个双孔部件之间的中心距。本文旨在利用空间三角测量法提出一种基于光学的空间点距测量技术。本文的目的是设计一种专门的测量系统，特别是一个球面安装的反向反射镜巢（SMR nest），配备两个激光位移传感器和一个旋转编码器作为核心，以实现双孔之间距离的精确测量。设计/方法/途径为了开发一种高效、精确的测量系统，本文在 SMR nest 中使用了激光位移传感器和旋转编码器的组合。该系统的设计、实施和测试均符合精确测量距离的要求。研究结果基于光学的距离测量系统在 412.084 毫米至 1,590.591 毫米的范围内实现了 0.04 毫米的高精度和 0.02 毫米的可重复性。原创性/价值本文提出了一种基于光学的空间点距离测量技术，以及 SMR 巢的独特设计和两种新型校准技术的引入，所有这些都通过所开发的软件和硬件平台进行了验证。

{"title":"An optical-based measurement method for center distance between two double-hole components","authors":"Heng Liu, Yonghua Lu, Haibo Yang, Lihua Zhou, Qiang Feng","doi":"10.1108/sr-06-2023-0197","DOIUrl":"https://doi.org/10.1108/sr-06-2023-0197","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>In the context of fixed-wing aircraft wing assembly, there is a need for a rapid and precise measurement technique to determine the center distance between two double-hole components. This paper aims to propose an optical-based spatial point distance measurement technique using the spatial triangulation method. The purpose of this paper is to design a specialized measurement system, specifically a spherically mounted retroreflector nest (SMR nest), equipped with two laser displacement sensors and a rotary encoder as the core to achieve accurate distance measurements between the double holes.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>To develop an efficient and accurate measurement system, the paper uses a combination of laser displacement sensors and a rotary encoder within the SMR nest. The system is designed, implemented and tested to meet the requirements of precise distance measurement. Software and hardware components have been developed and integrated for validation.</p>\u0000<h3>Findings</h3>\u0000<p>The optical-based distance measurement system achieves high precision at 0.04 mm and repeatability at 0.02 mm within a range of 412.084 mm to 1,590.591 mm. These results validate its suitability for efficient assembly processes, eliminating repetitive errors in aircraft wing assembly.</p>\u0000<h3>Originality/value</h3>\u0000<p>This paper proposes an optical-based spatial point distance measurement technique, as well as a unique design of a SMR nest and the introduction of two novel calibration techniques, all of which are validated by the developed software and hardware platform.</p>","PeriodicalId":49540,"journal":{"name":"Sensor Review","volume":"6 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139978711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of SWCNT biosensor for bisphosphonate–2X(X = Mg2+, Ca2+, Sr2+) delivery in bone cell through electromagnetic and thermodynamic analysis using QM/MC methods 利用 QM/MC 方法，通过电磁和热力学分析确定 SWCNT 生物传感器在骨细胞中输送双膦酸盐-2X（X = Mg2+、Ca2+、Sr2+）的情况

IF 1.6 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Sensor Review

Pub Date : 2024-02-22 DOI: 10.1108/sr-05-2023-0148

Fatemeh Mollaamin, Majid Monajjemi

Purpose

Bisphosphonate (BP) medications can be applied to prohibit the damage of bone density and the remedy of bone illnesses such as osteoporosis. As the metal chelating of phosphonate groups are nearby large with six O atoms possessing the high negative charge, these compounds are active toward producing the chelated complexes through drug design method. BP agents have attracted much attention for the clinical treatment of some skeletal diseases depicted by enhancing of osteoclast-mediated bone resorption.

Design/methodology/approach

In this work, it has been accomplished the CAM-B3LYP/6–311+G(d, p)/LANL2DZ to estimate the susceptibility of SWCNT for adsorbing alendronate, ibandronate, neridronate and pamidronate chelated to two metal cations of 2Mg²⁺, 2Ca²⁺, 2Sr²⁺ through nuclear magnetic resonance and thermodynamic parameters. Therefore, the data has explained that the feasibility of using SWCNT and BP agents becomes the norm in metal chelating of drug delivery system which has been selected through alendronate → 2X, ibandronate → 2X, neridronate → 2X and pamidronate → 2X (X = Mg²⁺/Ca²⁺/Sr²⁺) complexes.

Findings

The thermodynamic results have exhibited that the substitution of 2Ca²⁺ cation by 2Sr²⁺ cation in the structure of bioactive glasses can be efficient for treating vertebral complex fractures. However, it has been observed the most fluctuation in the Gibbs free energy for BPs → 2Sr²⁺ at 300 K. Furthermore, Monte Carlo simulation has resulted by increasing the dielectric constant in the aqueous medium can enhance the stability and efficiency of BP drugs for preventing the loss of bone density and treating the osteoporosis.

Originality/value

According to this research, by incorporation of chelated 2Mg²⁺, 2Ca²⁺ and 2Sr²⁺ cations to BP drugs adsorbed onto (5, 5) armchair SWCNT, the network compaction would increase owing to the larger atomic radius of Sr²⁺ cation rather than Ca²⁺ and Mg²⁺, respectively.

目的双膦酸盐（BP）药物可用于抑制骨密度的破坏和治疗骨质疏松症等骨病。由于膦酸盐基团的螯合金属接近大分子，有六个 O 原子，带高负电荷，因此这些化合物通过药物设计方法生产螯合复合物非常活跃。BP 制剂在临床治疗某些骨骼疾病方面备受关注，这些疾病主要表现为促进破骨细胞介导的骨吸收。设计/方法/途径在这项工作中，我们采用 CAM-B3LYP/6-311+G(d, p)/LANL2DZ 方法，通过核磁共振和热力学参数估算了 SWCNT 吸附 2Mg2+、2Ca2+、2Sr2+ 两种金属阳离子螯合的阿仑膦酸钠、伊班膦酸钠、奈立膦酸钠和帕米膦酸钠的敏感性。因此，这些数据说明了使用 SWCNT 和 BP 制剂在药物输送系统的金属螯合中的可行性，并通过阿仑膦酸盐 → 2X、伊班膦酸盐 → 2X、奈瑞膦酸盐 → 2X 和帕米膦酸盐 → 2X （X = Mg2+/Ca2+/Sr2+）复合物进行了筛选。研究结果热力学结果表明，在生物活性玻璃的结构中用 2Sr2+ 阳离子取代 2Ca2+ 阳离子可有效治疗椎体复合骨折。此外，蒙特卡洛模拟结果表明，通过增加水介质中的介电常数，可以提高生物活性玻璃药物的稳定性和效率，从而防止骨密度损失和治疗骨质疏松症。独创性/价值根据这项研究，在吸附于（5，5）扶手椅状 SWCNT 的 BP 药物中加入螯合 2Mg2+、2Ca2+ 和 2Sr2+ 阳离子后，由于 Sr2+ 阳离子的原子半径比 Ca2+ 和 Mg2+ 大，因此网络压实度会增加。

{"title":"Determination of SWCNT biosensor for bisphosphonate–2X(X = Mg2+, Ca2+, Sr2+) delivery in bone cell through electromagnetic and thermodynamic analysis using QM/MC methods","authors":"Fatemeh Mollaamin, Majid Monajjemi","doi":"10.1108/sr-05-2023-0148","DOIUrl":"https://doi.org/10.1108/sr-05-2023-0148","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>Bisphosphonate (BP) medications can be applied to prohibit the damage of bone density and the remedy of bone illnesses such as osteoporosis. As the metal chelating of phosphonate groups are nearby large with six O atoms possessing the high negative charge, these compounds are active toward producing the chelated complexes through drug design method. BP agents have attracted much attention for the clinical treatment of some skeletal diseases depicted by enhancing of osteoclast-mediated bone resorption.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>In this work, it has been accomplished the CAM-B3LYP/6–311+G(d, p)/LANL2DZ to estimate the susceptibility of SWCNT for adsorbing alendronate, ibandronate, neridronate and pamidronate chelated to two metal cations of 2Mg<sup>2+</sup>, 2Ca<sup>2+</sup>, 2Sr<sup>2+</sup> through nuclear magnetic resonance and thermodynamic parameters. Therefore, the data has explained that the feasibility of using SWCNT and BP agents becomes the norm in metal chelating of drug delivery system which has been selected through alendronate → 2X, ibandronate → 2X, neridronate → 2X and pamidronate → 2X (X = Mg<sup>2+</sup>/Ca<sup>2+</sup>/Sr<sup>2+</sup>) complexes.</p>\u0000<h3>Findings</h3>\u0000<p>The thermodynamic results have exhibited that the substitution of 2Ca<sup>2+</sup> cation by 2Sr<sup>2+</sup> cation in the structure of bioactive glasses can be efficient for treating vertebral complex fractures. However, it has been observed the most fluctuation in the Gibbs free energy for BPs → 2Sr<sup>2+</sup> at 300 K. Furthermore, Monte Carlo simulation has resulted by increasing the dielectric constant in the aqueous medium can enhance the stability and efficiency of BP drugs for preventing the loss of bone density and treating the osteoporosis.</p>\u0000<h3>Originality/value</h3>\u0000<p>According to this research, by incorporation of chelated 2Mg<sup>2+</sup>, 2Ca<sup>2+</sup> and 2Sr<sup>2+</sup> cations to BP drugs adsorbed onto (5, 5) armchair SWCNT, the network compaction would increase owing to the larger atomic radius of Sr<sup>2+</sup> cation rather than Ca<sup>2+</sup> and Mg<sup>2+</sup>, respectively.</p>","PeriodicalId":49540,"journal":{"name":"Sensor Review","volume":"2 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139919297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A 6DOF pose measurement method for metal casts object based on stereo vision sensor 基于立体视觉传感器的金属铸件 6DOF 姿态测量方法

IF 1.6 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Sensor Review

Pub Date : 2024-01-23 DOI: 10.1108/sr-09-2022-0374

Guoyang Wan, Yaocong Hu, Bingyou Liu, Shoujun Bai, Kaisheng Xing, Xiuwen Tao

Purpose

Presently, 6 Degree of Freedom (6DOF) visual pose measurement methods enjoy popularity in the industrial sector. However, challenges persist in accurately measuring the visual pose of blank and rough metal casts. Therefore, this paper introduces a 6DOF pose measurement method utilizing stereo vision, and aims to the 6DOF pose measurement of blank and rough metal casts.

Design/methodology/approach

This paper studies the 6DOF pose measurement of metal casts from three aspects: sample enhancement of industrial objects, optimization of detector and attention mechanism. Virtual reality technology is used for sample enhancement of metal casts, which solves the problem of large-scale sample sampling in industrial application. The method also includes a novel deep learning detector that uses multiple key points on the object surface as regression objects to detect industrial objects with rotation characteristics. By introducing a mixed paths attention module, the detection accuracy of the detector and the convergence speed of the training are improved.

Findings

The experimental results show that the proposed method has a better detection effect for metal casts with smaller size scaling and rotation characteristics.

Originality/value

A method for 6DOF pose measurement of industrial objects is proposed, which realizes the pose measurement and grasping of metal blanks and rough machined casts by industrial robots.

目的目前，6 自由度（6DOF）视觉姿态测量方法在工业领域很受欢迎。然而，在精确测量毛坯和粗糙金属铸件的视觉姿态方面仍然存在挑战。因此，本文介绍了一种利用立体视觉的 6DOF 姿态测量方法，旨在对空白和粗糙金属铸件进行 6DOF 姿态测量。采用虚拟现实技术对金属铸件进行采样增强，解决了工业应用中大规模采样的问题。该方法还包括一种新颖的深度学习检测器，利用物体表面的多个关键点作为回归对象，检测具有旋转特征的工业物体。实验结果表明，对于具有较小尺寸缩放和旋转特征的金属铸件，所提出的方法具有较好的检测效果。

{"title":"A 6DOF pose measurement method for metal casts object based on stereo vision sensor","authors":"Guoyang Wan, Yaocong Hu, Bingyou Liu, Shoujun Bai, Kaisheng Xing, Xiuwen Tao","doi":"10.1108/sr-09-2022-0374","DOIUrl":"https://doi.org/10.1108/sr-09-2022-0374","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>Presently, 6 Degree of Freedom (6DOF) visual pose measurement methods enjoy popularity in the industrial sector. However, challenges persist in accurately measuring the visual pose of blank and rough metal casts. Therefore, this paper introduces a 6DOF pose measurement method utilizing stereo vision, and aims to the 6DOF pose measurement of blank and rough metal casts.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>This paper studies the 6DOF pose measurement of metal casts from three aspects: sample enhancement of industrial objects, optimization of detector and attention mechanism. Virtual reality technology is used for sample enhancement of metal casts, which solves the problem of large-scale sample sampling in industrial application. The method also includes a novel deep learning detector that uses multiple key points on the object surface as regression objects to detect industrial objects with rotation characteristics. By introducing a mixed paths attention module, the detection accuracy of the detector and the convergence speed of the training are improved.</p>\u0000<h3>Findings</h3>\u0000<p>The experimental results show that the proposed method has a better detection effect for metal casts with smaller size scaling and rotation characteristics.</p>\u0000<h3>Originality/value</h3>\u0000<p>A method for 6DOF pose measurement of industrial objects is proposed, which realizes the pose measurement and grasping of metal blanks and rough machined casts by industrial robots.</p>","PeriodicalId":49540,"journal":{"name":"Sensor Review","volume":"59 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139500688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on dynamic calibration and compensation method of strain-gauge type force sensor 应变片式力传感器的动态校准与补偿方法研究

IF 1.6 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Sensor Review

Pub Date : 2024-01-10 DOI: 10.1108/sr-08-2023-0330

Tingwei Gu, Shengjun Yuan, Lin Gu, Xiaodong Sun, Yanping Zeng, Lu Wang

Purpose

This paper aims to propose an effective dynamic calibration and compensation method to solve the problem that the statically calibrated force sensor would produce large dynamic errors when measuring dynamic signals.

Design/methodology/approach

The dynamic characteristics of the force sensor are analyzed by modal analysis and negative step dynamic force calibration test, and the dynamic mathematical model of the force sensor is identified based on a generalized least squares method with a special whitening filter. Then, a compensation unit is constructed to compensate the dynamic characteristics of the force measurement system, and the compensation effect is verified based on the step and knock excitation signals.

Findings

The dynamic characteristics of the force sensor obtained by modal analysis and dynamic calibration test are consistent, and the time and frequency domain characteristics of the identified dynamic mathematical model agree well with the actual measurement results. After dynamic compensation, the dynamic characteristics of the force sensor in the frequency domain are obviously improved, and the effective operating frequency band is widened from 500 Hz to 1,560 Hz. In addition, in the time domain, the rise time of the step response signal is reduced from 0.29 ms to 0.17 ms, and the overshoot decreases from 26.6% to 9.8%.

Originality/value

An effective dynamic calibration and compensation method is proposed in this paper, which can be used to improve the dynamic performance of the strain-gauge-type force sensor and reduce the dynamic measurement error of the force measurement system.

目的本文旨在提出一种有效的动态校准和补偿方法，以解决静态校准的力传感器在测量动态信号时会产生较大动态误差的问题。设计/方法/途径通过模态分析和负阶跃动态力校准试验分析了力传感器的动态特性，并基于广义最小二乘法和特殊增白滤波器确定了力传感器的动态数学模型。结果通过模态分析和动态校准测试获得的力传感器动态特性是一致的，所确定的动态数学模型的时域和频域特性与实际测量结果吻合良好。经过动态补偿后，力传感器在频域的动态特性得到明显改善，有效工作频带从 500 Hz 扩大到 1 560 Hz。原创性/价值本文提出了一种有效的动态校准和补偿方法，可用于改善应变片式力传感器的动态性能，降低力测量系统的动态测量误差。

{"title":"Research on dynamic calibration and compensation method of strain-gauge type force sensor","authors":"Tingwei Gu, Shengjun Yuan, Lin Gu, Xiaodong Sun, Yanping Zeng, Lu Wang","doi":"10.1108/sr-08-2023-0330","DOIUrl":"https://doi.org/10.1108/sr-08-2023-0330","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>This paper aims to propose an effective dynamic calibration and compensation method to solve the problem that the statically calibrated force sensor would produce large dynamic errors when measuring dynamic signals.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>The dynamic characteristics of the force sensor are analyzed by modal analysis and negative step dynamic force calibration test, and the dynamic mathematical model of the force sensor is identified based on a generalized least squares method with a special whitening filter. Then, a compensation unit is constructed to compensate the dynamic characteristics of the force measurement system, and the compensation effect is verified based on the step and knock excitation signals.</p>\u0000<h3>Findings</h3>\u0000<p>The dynamic characteristics of the force sensor obtained by modal analysis and dynamic calibration test are consistent, and the time and frequency domain characteristics of the identified dynamic mathematical model agree well with the actual measurement results. After dynamic compensation, the dynamic characteristics of the force sensor in the frequency domain are obviously improved, and the effective operating frequency band is widened from 500 Hz to 1,560 Hz. In addition, in the time domain, the rise time of the step response signal is reduced from 0.29 ms to 0.17 ms, and the overshoot decreases from 26.6% to 9.8%.</p>\u0000<h3>Originality/value</h3>\u0000<p>An effective dynamic calibration and compensation method is proposed in this paper, which can be used to improve the dynamic performance of the strain-gauge-type force sensor and reduce the dynamic measurement error of the force measurement system.</p>","PeriodicalId":49540,"journal":{"name":"Sensor Review","volume":"20 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139397621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel linear displacement sensor based on double-threshold decoding algorithm 基于双阈值解码算法的新型线性位移传感器

IF 1.6 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Sensor Review

Pub Date : 2024-01-09 DOI: 10.1108/sr-02-2023-0029

Jian Kang, Libei Zhong, Bin Hao, Yuelong Su, Yitao Zhao, Xianfeng Yan, Shuanghui Hao

Purpose

Most of the linear encoders are based on optics. The accuracy and reliability of these encoders are greatly reduced in polluted and noisy environments. Moreover, these encoders have a complex structure and large sensor volume and are thus not suited to small application scenarios and do not have universality. This paper aims to present a new absolute magnetic linear encoder, which has a simple structure, small size and wide application range.

Design/methodology/approach

The effect of swing error is analyzed for the sensor structural arrangement. A double-threshold interval algorithm is then proposed to synthesize multiple interval electrical angles into absolute angles and convert them into actual displacement distances.

Findings

The final linear encoder measurement range is 15.57 mm, and the resolution reaches ± 2 µm. The effectiveness of the algorithm is demonstrated experimentally.

Originality/value

The linear encoder has good robustness, and high measurement accuracy, which is suitable for industrial production. The linear encoder has been mass-produced and used in an electric power-assisted braking system.

用途大多数线性编码器都基于光学原理。在污染和嘈杂的环境中，这些编码器的精度和可靠性会大大降低。此外，这些编码器结构复杂，传感器体积大，不适合小型应用场合，不具有通用性。本文旨在介绍一种结构简单、体积小、应用范围广的新型绝对磁性直线光栅。结果直线光栅的最终测量范围为 15.57 mm，分辨率达到 ± 2 µm。原创性/价值该直线光栅具有良好的鲁棒性和较高的测量精度，适用于工业生产。该直线光栅已经量产，并应用于电力辅助制动系统。

{"title":"A novel linear displacement sensor based on double-threshold decoding algorithm","authors":"Jian Kang, Libei Zhong, Bin Hao, Yuelong Su, Yitao Zhao, Xianfeng Yan, Shuanghui Hao","doi":"10.1108/sr-02-2023-0029","DOIUrl":"https://doi.org/10.1108/sr-02-2023-0029","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>Most of the linear encoders are based on optics. The accuracy and reliability of these encoders are greatly reduced in polluted and noisy environments. Moreover, these encoders have a complex structure and large sensor volume and are thus not suited to small application scenarios and do not have universality. This paper aims to present a new absolute magnetic linear encoder, which has a simple structure, small size and wide application range.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>The effect of swing error is analyzed for the sensor structural arrangement. A double-threshold interval algorithm is then proposed to synthesize multiple interval electrical angles into absolute angles and convert them into actual displacement distances.</p>\u0000<h3>Findings</h3>\u0000<p>The final linear encoder measurement range is 15.57 mm, and the resolution reaches ± 2 µm. The effectiveness of the algorithm is demonstrated experimentally.</p>\u0000<h3>Originality/value</h3>\u0000<p>The linear encoder has good robustness, and high measurement accuracy, which is suitable for industrial production. The linear encoder has been mass-produced and used in an electric power-assisted braking system.</p>","PeriodicalId":49540,"journal":{"name":"Sensor Review","volume":"48 6 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139104345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical sensors for analyte in saliva: recent update 唾液中分析物的电化学传感器：最新进展

IF 1.6 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Sensor Review

Pub Date : 2024-01-01 DOI: 10.1108/sr-06-2023-0202

Xingxing Li, Shixi You, Zengchang Fan, Guangjun Li, Li Fu

Purpose

This review provides an overview of recent advances in electrochemical sensors for analyte detection in saliva, highlighting their potential applications in diagnostics and health care. The purpose of this paper is to summarize the current state of the field, identify challenges and limitations and discuss future prospects for the development of saliva-based electrochemical sensors.

Design/methodology/approach

The paper reviews relevant literature and research articles to examine the latest developments in electrochemical sensing technologies for saliva analysis. It explores the use of various electrode materials, including carbon nanomaterial, metal nanoparticles and conducting polymers, as well as the integration of microfluidics, lab-on-a-chip (LOC) devices and wearable/implantable technologies. The design and fabrication methodologies used in these sensors are discussed, along with sample preparation techniques and biorecognition elements for enhancing sensor performance.

Findings

Electrochemical sensors for salivary analyte detection have demonstrated excellent potential for noninvasive, rapid and cost-effective diagnostics. Recent advancements have resulted in improved sensor selectivity, stability, sensitivity and compatibility with complex saliva samples. Integration with microfluidics and LOC technologies has shown promise in enhancing sensor efficiency and accuracy. In addition, wearable and implantable sensors enable continuous, real-time monitoring of salivary analytes, opening new avenues for personalized health care and disease management.

Originality/value

This review presents an up-to-date overview of electrochemical sensors for analyte detection in saliva, offering insights into their design, fabrication and performance. It highlights the originality and value of integrating electrochemical sensing with microfluidics, wearable/implantable technologies and point-of-care testing platforms. The review also identifies challenges and limitations, such as interference from other saliva components and the need for improved stability and reproducibility. Future prospects include the development of novel microfluidic devices, advanced materials and user-friendly diagnostic devices to unlock the full potential of saliva-based electrochemical sensing in clinical practice.

目的本综述概述了用于检测唾液中分析物的电化学传感器的最新进展，重点介绍了这些传感器在诊断和医疗保健领域的潜在应用。本文旨在总结该领域的现状，确定挑战和局限性，并讨论基于唾液的电化学传感器的未来发展前景。本文回顾了相关文献和研究文章，研究了用于唾液分析的电化学传感技术的最新进展。论文探讨了各种电极材料的使用，包括碳纳米材料、金属纳米颗粒和导电聚合物，以及微流控、片上实验室（LOC）设备和可穿戴/可植入技术的整合。研究结果用于唾液分析物检测的电化学传感器在无创、快速和经济高效的诊断方面表现出了巨大的潜力。最近的进步提高了传感器的选择性、稳定性、灵敏度以及与复杂唾液样本的兼容性。与微流控技术和 LOC 技术的整合有望提高传感器的效率和准确性。此外，可穿戴和植入式传感器可实现对唾液分析物的连续、实时监测，为个性化医疗保健和疾病管理开辟了新途径。它强调了将电化学传感与微流控、可穿戴/可植入技术和床旁检测平台相结合的独创性和价值。综述还指出了所面临的挑战和局限性，如唾液中其他成分的干扰，以及提高稳定性和可重复性的必要性。未来的前景包括开发新型微流控装置、先进材料和用户友好型诊断设备，以充分挖掘基于唾液的电化学传感在临床实践中的潜力。

{"title":"Electrochemical sensors for analyte in saliva: recent update","authors":"Xingxing Li, Shixi You, Zengchang Fan, Guangjun Li, Li Fu","doi":"10.1108/sr-06-2023-0202","DOIUrl":"https://doi.org/10.1108/sr-06-2023-0202","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>This review provides an overview of recent advances in electrochemical sensors for analyte detection in saliva, highlighting their potential applications in diagnostics and health care. The purpose of this paper is to summarize the current state of the field, identify challenges and limitations and discuss future prospects for the development of saliva-based electrochemical sensors.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>The paper reviews relevant literature and research articles to examine the latest developments in electrochemical sensing technologies for saliva analysis. It explores the use of various electrode materials, including carbon nanomaterial, metal nanoparticles and conducting polymers, as well as the integration of microfluidics, lab-on-a-chip (LOC) devices and wearable/implantable technologies. The design and fabrication methodologies used in these sensors are discussed, along with sample preparation techniques and biorecognition elements for enhancing sensor performance.</p>\u0000<h3>Findings</h3>\u0000<p>Electrochemical sensors for salivary analyte detection have demonstrated excellent potential for noninvasive, rapid and cost-effective diagnostics. Recent advancements have resulted in improved sensor selectivity, stability, sensitivity and compatibility with complex saliva samples. Integration with microfluidics and LOC technologies has shown promise in enhancing sensor efficiency and accuracy. In addition, wearable and implantable sensors enable continuous, real-time monitoring of salivary analytes, opening new avenues for personalized health care and disease management.</p>\u0000<h3>Originality/value</h3>\u0000<p>This review presents an up-to-date overview of electrochemical sensors for analyte detection in saliva, offering insights into their design, fabrication and performance. It highlights the originality and value of integrating electrochemical sensing with microfluidics, wearable/implantable technologies and point-of-care testing platforms. The review also identifies challenges and limitations, such as interference from other saliva components and the need for improved stability and reproducibility. Future prospects include the development of novel microfluidic devices, advanced materials and user-friendly diagnostic devices to unlock the full potential of saliva-based electrochemical sensing in clinical practice.</p>","PeriodicalId":49540,"journal":{"name":"Sensor Review","volume":"13 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139062050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accuracy of a multipath ultrasonic flowmeter with deep learning based on the velocity profile 基于速度曲线深度学习的多径超声波流量计的精度

IF 1.6 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Sensor Review

Pub Date : 2023-12-20 DOI: 10.1108/sr-08-2022-0306

Zhijia Xu, Minghai Li

Purpose

The asymmetry of the velocity profile caused by geometric deformation, complex turbulent motion and other factors must be considered to effectively use the flowmeter on any section. This study aims to better capture the flow field information and establish a model to predict the profile velocity, we take the classical double elbow as the research object and propose to divide the flow field into three categories with certain common characteristics.

Design/methodology/approach

The deep learning method is used to establish the model of multipath linear velocity fitting profile average velocity. A total of 480 groups of data are taken for training and validation, with ten integer velocity flow fields from 1 m/s to 10 m/s. Finally, accuracy research with relative error as standard is carried out.

Findings

The numerical experiment yielded the following promising results: the maximum relative error is approximately 1%, and in the majority of cases, the relative error is significantly lower than 1%. These results demonstrate that it surpasses the classical optimization algorithm Equal Tab (5%) and the traditional artificial neural network (3%) in the same scenario. In contrast with the previous research on a fixed profile, we focus on all the velocity profiles of a certain length for the first time, which can expand the application scope of a multipath ultrasonic flowmeter and promote the research on flow measurement in any section.

Originality/value

This work proposes to divide the flow field of double elbow into three categories with certain common characteristics to better capture the flow field information and establish a model to predict the profile velocity.

目的在任何断面上有效使用流量计都必须考虑几何变形、复杂湍流运动和其他因素造成的速度剖面不对称。本研究旨在更好地捕捉流场信息并建立预测剖面速度的模型，我们以经典双弯头为研究对象，提出将流场划分为具有一定共性的三类。训练和验证数据共 480 组，速度流场为 1 m/s 至 10 m/s，共 10 个整数。最后，以相对误差为标准进行了精度研究。结果数值实验得出了以下可喜的结果：最大相对误差约为 1%，在大多数情况下，相对误差明显低于 1%。这些结果表明，在相同情况下，它超过了经典优化算法 Equal Tab（5%）和传统人工神经网络（3%）。与以往针对固定剖面的研究相比，我们首次关注了一定长度内的所有速度剖面，这可以扩大多径超声波流量计的应用范围，促进任意断面流量测量的研究。

{"title":"Accuracy of a multipath ultrasonic flowmeter with deep learning based on the velocity profile","authors":"Zhijia Xu, Minghai Li","doi":"10.1108/sr-08-2022-0306","DOIUrl":"https://doi.org/10.1108/sr-08-2022-0306","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The asymmetry of the velocity profile caused by geometric deformation, complex turbulent motion and other factors must be considered to effectively use the flowmeter on any section. This study aims to better capture the flow field information and establish a model to predict the profile velocity, we take the classical double elbow as the research object and propose to divide the flow field into three categories with certain common characteristics.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>The deep learning method is used to establish the model of multipath linear velocity fitting profile average velocity. A total of 480 groups of data are taken for training and validation, with ten integer velocity flow fields from 1 m/s to 10 m/s. Finally, accuracy research with relative error as standard is carried out.</p>\u0000<h3>Findings</h3>\u0000<p>The numerical experiment yielded the following promising results: the maximum relative error is approximately 1%, and in the majority of cases, the relative error is significantly lower than 1%. These results demonstrate that it surpasses the classical optimization algorithm Equal Tab (5%) and the traditional artificial neural network (3%) in the same scenario. In contrast with the previous research on a fixed profile, we focus on all the velocity profiles of a certain length for the first time, which can expand the application scope of a multipath ultrasonic flowmeter and promote the research on flow measurement in any section.</p>\u0000<h3>Originality/value</h3>\u0000<p>This work proposes to divide the flow field of double elbow into three categories with certain common characteristics to better capture the flow field information and establish a model to predict the profile velocity.</p>","PeriodicalId":49540,"journal":{"name":"Sensor Review","volume":"34 4 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138715813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-plane miniature planar 3D ECT sensor based on 3 × 3 matrix electrode array 基于3 × 3矩阵电极阵列的双平面微型平面三维ECT传感器

4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Sensor Review

Pub Date : 2023-10-25 DOI: 10.1108/sr-06-2023-0240

Wen Pin Gooi, Pei Ling Leow, Jaysuman Pusppanathan, Xian Feng Hor, Shahrulnizahani Mohammad Din

Purpose As one of the tomographic imaging techniques, electrical capacitance tomography (ECT) is widely used in many industrial applications. While most ECT sensors have electrodes placed around a cylindrical chamber, the planar ECT sensor has been investigated for depth and defect detection. However, the planar ECT sensor has limited height and depth sensing capability due to its single-sided assessment with the use of only a single-plane design. The purpose of this paper is to investigate a dual-plane miniature planar 3D ECT sensor design using the 3 × 3 matrix electrode array. Design/methodology/approach The sensitivity map of dual-plane miniature planar 3D ECT sensor was analysed using 3D visualisation, the singular value decomposition and the axial resolution analysis. Then, the sensor was fabricated for performance analysis based on 3D imaging experiments. Findings The sensitivity map analysis showed that the dual-plane miniature planar 3D ECT sensor has enhanced the height sensing capability, and it is less ill-posed in 3D image reconstruction. The dual-plane miniature planar 3D ECT sensor showed a 28% improvement in reconstructed 3D image quality as compared to the single-plane sensor set-up. Originality/value The 3 × 3 matrix electrode array has been proposed to use only the necessary electrode pair combinations for image reconstruction. Besides, the increase in number of electrodes from the dual-plane sensor setup improved the height reconstruction of the test sample.

作为层析成像技术的一种，电容层析成像(ECT)在许多工业领域得到了广泛的应用。虽然大多数电痉挛传感器都将电极放置在圆柱形腔室周围，但平面电痉挛传感器已经被研究用于深度和缺陷检测。然而，平面电痉挛传感器由于其单面评估，仅使用单平面设计，因此高度和深度传感能力有限。本文的目的是研究一种采用3 × 3矩阵电极阵列的双平面微型平面三维ECT传感器的设计。采用三维可视化、奇异值分解和轴向分辨率分析等方法，对双平面微型平面三维ECT传感器的灵敏度图进行了分析。然后，在三维成像实验的基础上，对传感器进行了性能分析。结果灵敏度图分析表明，双平面微型平面三维电痉挛传感器具有增强的高度感知能力，并且在三维图像重建中具有较小的病态性。与单平面传感器设置相比，双平面微型平面3D ECT传感器在重建3D图像质量方面提高了28%。提出了3 × 3矩阵电极阵列，仅使用必要的电极对组合进行图像重建。此外，双平面传感器设置的电极数量的增加提高了测试样品的高度重建。

{"title":"Dual-plane miniature planar 3D ECT sensor based on 3 × 3 matrix electrode array","authors":"Wen Pin Gooi, Pei Ling Leow, Jaysuman Pusppanathan, Xian Feng Hor, Shahrulnizahani Mohammad Din","doi":"10.1108/sr-06-2023-0240","DOIUrl":"https://doi.org/10.1108/sr-06-2023-0240","url":null,"abstract":"Purpose As one of the tomographic imaging techniques, electrical capacitance tomography (ECT) is widely used in many industrial applications. While most ECT sensors have electrodes placed around a cylindrical chamber, the planar ECT sensor has been investigated for depth and defect detection. However, the planar ECT sensor has limited height and depth sensing capability due to its single-sided assessment with the use of only a single-plane design. The purpose of this paper is to investigate a dual-plane miniature planar 3D ECT sensor design using the 3 × 3 matrix electrode array. Design/methodology/approach The sensitivity map of dual-plane miniature planar 3D ECT sensor was analysed using 3D visualisation, the singular value decomposition and the axial resolution analysis. Then, the sensor was fabricated for performance analysis based on 3D imaging experiments. Findings The sensitivity map analysis showed that the dual-plane miniature planar 3D ECT sensor has enhanced the height sensing capability, and it is less ill-posed in 3D image reconstruction. The dual-plane miniature planar 3D ECT sensor showed a 28% improvement in reconstructed 3D image quality as compared to the single-plane sensor set-up. Originality/value The 3 × 3 matrix electrode array has been proposed to use only the necessary electrode pair combinations for image reconstruction. Besides, the increase in number of electrodes from the dual-plane sensor setup improved the height reconstruction of the test sample.","PeriodicalId":49540,"journal":{"name":"Sensor Review","volume":"12 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134972254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0