Pub Date : 2006-10-01DOI: 10.1109/ICSENS.2007.355802
S. Kinugasa
This paper presents a new type of differential pressure (DP) sensor, which combines fiber interferometry and spectral amplitude-modulation (AM) method. The sensing system consists of two Fabry-Perot (FP) interferometric cavities with pressure movable and reflective diaphragms. The broadband lights return from the two FP type of sensor probes, and they are superimposed in the optical frequency domain. The doubled air gap size is much smaller than the coherence length inversely proportional to the spectral resolution, while the optical path difference (OPD) between two fiber channels is designed much longer than the coherence length. The superimposed intereference fringe shows a sinusoidal and amplitude modulated signal due to the air gap sizes' difference, which is biased by the signals due to the total air gap sizes in the frequency domain. Frequency interval of the low frequency factor is converted into the DP values without any compensation for the unwanted factors, including source power fluctuation and fiber bending losses. Experimental result shows that a resolution is as high as the 0.08 kPa per THz and accuracy as high as 1.0% per full scale.
{"title":"Fringe Amplitude Modulation Method for Differential Pressure Sensor","authors":"S. Kinugasa","doi":"10.1109/ICSENS.2007.355802","DOIUrl":"https://doi.org/10.1109/ICSENS.2007.355802","url":null,"abstract":"This paper presents a new type of differential pressure (DP) sensor, which combines fiber interferometry and spectral amplitude-modulation (AM) method. The sensing system consists of two Fabry-Perot (FP) interferometric cavities with pressure movable and reflective diaphragms. The broadband lights return from the two FP type of sensor probes, and they are superimposed in the optical frequency domain. The doubled air gap size is much smaller than the coherence length inversely proportional to the spectral resolution, while the optical path difference (OPD) between two fiber channels is designed much longer than the coherence length. The superimposed intereference fringe shows a sinusoidal and amplitude modulated signal due to the air gap sizes' difference, which is biased by the signals due to the total air gap sizes in the frequency domain. Frequency interval of the low frequency factor is converted into the DP values without any compensation for the unwanted factors, including source power fluctuation and fiber bending losses. Experimental result shows that a resolution is as high as the 0.08 kPa per THz and accuracy as high as 1.0% per full scale.","PeriodicalId":233838,"journal":{"name":"2006 5th IEEE Conference on Sensors","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115819949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-10-01DOI: 10.1109/ICSENS.2007.355713
Chao Yang, A. Mason, Jinwen Xi, Peixin Zhong
A new, high resolution, multi-sensor interface circuit is presented to read out up to eight resistive or capacitive sensors while sharing configurable circuits to achieve hardware and power efficiency. A non-balanced (NB) bridge approach was adopted for both resistive and capacitive interfaces, eliminating the need for finely tunable on-chip components to balance the bridge. The shared pre-amp and programmable gain signal-conditioning stages are formed with switched capacitor circuits. Through a carefully designed clock scheme, a sample-and-hold (S/H) function is realized without a dedicated S/H circuit. The effects of op-amp offset and parasitic capacitance at the inputs are suppressed, and undesirable disturbance of the bridge DC point is avoided during resistance measurement. The 0.53 x 0.75mm circuit was implemented in 0.18mum CMOS and requires only 300muA from a 1.8V supply. It has the size and power efficiency to implement a front-end sensor interface system-on-chip with an embedded controller.
提出了一种新的高分辨率多传感器接口电路，可读出多达8个电阻或电容传感器，同时共享可配置电路，以实现硬件和电源效率。电阻和电容接口均采用非平衡(NB)桥接方法，从而消除了对可微调片上元件的需求。共用前置放大器和可编程增益信号调理级由开关电容电路组成。通过精心设计的时钟方案，实现了采样保持(S/H)功能，无需专用S/H电路。抑制了输入端运放偏置和寄生电容的影响，避免了电桥直流点在电阻测量过程中的不良干扰。0.53 x 0.75mm电路在0.18mum CMOS中实现，仅需要来自1.8V电源的300muA。它的尺寸和功率效率足以实现前端传感器接口系统芯片与嵌入式控制器。
{"title":"Configurable Hardware-Effcient Interface Circuit for Multi-Sensor Microsystems","authors":"Chao Yang, A. Mason, Jinwen Xi, Peixin Zhong","doi":"10.1109/ICSENS.2007.355713","DOIUrl":"https://doi.org/10.1109/ICSENS.2007.355713","url":null,"abstract":"A new, high resolution, multi-sensor interface circuit is presented to read out up to eight resistive or capacitive sensors while sharing configurable circuits to achieve hardware and power efficiency. A non-balanced (NB) bridge approach was adopted for both resistive and capacitive interfaces, eliminating the need for finely tunable on-chip components to balance the bridge. The shared pre-amp and programmable gain signal-conditioning stages are formed with switched capacitor circuits. Through a carefully designed clock scheme, a sample-and-hold (S/H) function is realized without a dedicated S/H circuit. The effects of op-amp offset and parasitic capacitance at the inputs are suppressed, and undesirable disturbance of the bridge DC point is avoided during resistance measurement. The 0.53 x 0.75mm circuit was implemented in 0.18mum CMOS and requires only 300muA from a 1.8V supply. It has the size and power efficiency to implement a front-end sensor interface system-on-chip with an embedded controller.","PeriodicalId":233838,"journal":{"name":"2006 5th IEEE Conference on Sensors","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117339075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-10-01DOI: 10.1109/ICSENS.2007.355466
K. Shimonomura, T. Yagi
We describe a multi-chip analog VLSI vision sensor consisting of a silicon retina and an orientation chip that is tuned to particular orientations and spatial frequency bands of input image. The silicon retina emulates the neural circuits of the vertebrate retina and exhibits a Laplacian-Gaussian-like receptive field. The orientation chip receives output image of the silicon retina and aggregates multiple pixels in the image to generate a Gabor-like orientation-selective spatial filter. The orientation and spatial frequency properties of the filter is controlled by selecting the pixels to be aggregated using external signals. Multiple orientations and spatial frequency bands were implemented in separate chips that are connected in parallel to the silicon retina to obtain output images tuned to different orientations and spatial frequency bands simultaneously.
{"title":"A Multi-Chip Analog VLSI Vision Sensor with Selectivity to Orientation and Spatial Frequency","authors":"K. Shimonomura, T. Yagi","doi":"10.1109/ICSENS.2007.355466","DOIUrl":"https://doi.org/10.1109/ICSENS.2007.355466","url":null,"abstract":"We describe a multi-chip analog VLSI vision sensor consisting of a silicon retina and an orientation chip that is tuned to particular orientations and spatial frequency bands of input image. The silicon retina emulates the neural circuits of the vertebrate retina and exhibits a Laplacian-Gaussian-like receptive field. The orientation chip receives output image of the silicon retina and aggregates multiple pixels in the image to generate a Gabor-like orientation-selective spatial filter. The orientation and spatial frequency properties of the filter is controlled by selecting the pixels to be aggregated using external signals. Multiple orientations and spatial frequency bands were implemented in separate chips that are connected in parallel to the silicon retina to obtain output images tuned to different orientations and spatial frequency bands simultaneously.","PeriodicalId":233838,"journal":{"name":"2006 5th IEEE Conference on Sensors","volume":"252 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121247642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-10-01DOI: 10.1109/ICSENS.2007.355874
Y. Nonomura, M. Fujiyoshi, H. Sugihara
An inertial force sensing system for partner robot control has been developed. We named this system MOST (MOtion Sensing Technology). The MOST consists of 3 angular rate sensors, 3 acceleration sensors, and a DSP (digital signal processor). The acceleration sensor is a semiconductor type and the angular rate sensor is a quartz type. The sensors have been made by MEMS (micro electro mechanical systems) technology for mass-produced cars. They are good for miniaturization of the sensing unit. Posture angle is generally obtained by integrating the angular rate over time. However, there was the divergence of the posture angle due to the offset output integration. New algorithm was proposed to suppress the divergence of the posture angle with the DSP in real-time. The performance of the sensing system, MOST, was demonstrated on the TOYOTA partner robots in the EXPO 2005 Aichi, Japan.
{"title":"Inertial Force Sensing System for Partner Robots","authors":"Y. Nonomura, M. Fujiyoshi, H. Sugihara","doi":"10.1109/ICSENS.2007.355874","DOIUrl":"https://doi.org/10.1109/ICSENS.2007.355874","url":null,"abstract":"An inertial force sensing system for partner robot control has been developed. We named this system MOST (MOtion Sensing Technology). The MOST consists of 3 angular rate sensors, 3 acceleration sensors, and a DSP (digital signal processor). The acceleration sensor is a semiconductor type and the angular rate sensor is a quartz type. The sensors have been made by MEMS (micro electro mechanical systems) technology for mass-produced cars. They are good for miniaturization of the sensing unit. Posture angle is generally obtained by integrating the angular rate over time. However, there was the divergence of the posture angle due to the offset output integration. New algorithm was proposed to suppress the divergence of the posture angle with the DSP in real-time. The performance of the sensing system, MOST, was demonstrated on the TOYOTA partner robots in the EXPO 2005 Aichi, Japan.","PeriodicalId":233838,"journal":{"name":"2006 5th IEEE Conference on Sensors","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127114046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-10-01DOI: 10.1109/ICSENS.2007.355617
Ji-hoon Kim, Byoung-Chae Kang, B. Choi, S. Lee, K. Kim
In general, image reconstruction algorithms for electrical capacitance tomography (ECT) can be classified into iterative and noniterative algorithms. Iterative algorithms produce better quality images however they can only be used off-line due to intensive computational burden. In the context of computational burden, in this paper we propose a fast noniterative image reconstruction algorithm called on-line directional algebraic reconstruction technique (OLDART) which like its predecessor, directional algebraic reconstruction technique (DART), produces the same quality image but reduces the reconstruction time. The reconstruction procedure of the proposed algorithm comprises of two steps. In the first step, a modified weighting matrix is generated off-line, and in the second step, the matrix is used for on-line image reconstruction in the same manner as the sensitivity matrix in the linear back-projection algorithm is used. In order to assess the reconstruction performance, extensive simulation results are provided for the proposed approach.
{"title":"On-Line Directional Algebraic Reconstruction Technique for Electrical Capacitance Tomography","authors":"Ji-hoon Kim, Byoung-Chae Kang, B. Choi, S. Lee, K. Kim","doi":"10.1109/ICSENS.2007.355617","DOIUrl":"https://doi.org/10.1109/ICSENS.2007.355617","url":null,"abstract":"In general, image reconstruction algorithms for electrical capacitance tomography (ECT) can be classified into iterative and noniterative algorithms. Iterative algorithms produce better quality images however they can only be used off-line due to intensive computational burden. In the context of computational burden, in this paper we propose a fast noniterative image reconstruction algorithm called on-line directional algebraic reconstruction technique (OLDART) which like its predecessor, directional algebraic reconstruction technique (DART), produces the same quality image but reduces the reconstruction time. The reconstruction procedure of the proposed algorithm comprises of two steps. In the first step, a modified weighting matrix is generated off-line, and in the second step, the matrix is used for on-line image reconstruction in the same manner as the sensitivity matrix in the linear back-projection algorithm is used. In order to assess the reconstruction performance, extensive simulation results are provided for the proposed approach.","PeriodicalId":233838,"journal":{"name":"2006 5th IEEE Conference on Sensors","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127371614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-10-01DOI: 10.1109/ICSENS.2007.355710
T. Seto, K. Kama, M. Kimata, M. Takeda, H. Hata, Y. Nakaki, H. Inoue, Y. Kosasayama, Y. Ohta, H. Fukumoto
We have developed a 160 times 120 SOI (silicon on insulator) diode uncooled IRFPA (Infrared Focal Plane Array) with 25 mum pixel pitch for a small IR camera. The IRFPA has a highly responsive pixel structure and is packaged in a chip scale vacuum package (CSVP) in order to reduce the package size. The size of the package is 14.5(L) times 13.5(W) times 1.2(H) mm. An infrared image of less than 60 mK in NETD (Noise Equivalent Temperature Difference) with f/1.0 optics has been obtained by the developed IRFPA.
{"title":"160×120 Uncooled IRFPA for Small JR Camera","authors":"T. Seto, K. Kama, M. Kimata, M. Takeda, H. Hata, Y. Nakaki, H. Inoue, Y. Kosasayama, Y. Ohta, H. Fukumoto","doi":"10.1109/ICSENS.2007.355710","DOIUrl":"https://doi.org/10.1109/ICSENS.2007.355710","url":null,"abstract":"We have developed a 160 times 120 SOI (silicon on insulator) diode uncooled IRFPA (Infrared Focal Plane Array) with 25 mum pixel pitch for a small IR camera. The IRFPA has a highly responsive pixel structure and is packaged in a chip scale vacuum package (CSVP) in order to reduce the package size. The size of the package is 14.5(L) times 13.5(W) times 1.2(H) mm. An infrared image of less than 60 mK in NETD (Noise Equivalent Temperature Difference) with f/1.0 optics has been obtained by the developed IRFPA.","PeriodicalId":233838,"journal":{"name":"2006 5th IEEE Conference on Sensors","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127466938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-10-01DOI: 10.1109/ICSENS.2007.355741
Zhuo Wang, W. Khalid, Yong Xu
We report the successful prototype development of a novel Lab-on-Tip device that provides a capability complementary to atomic force microscopy, namely, measurement of lateral forces with pico-Newton resolution. This Lab-on-Tip device is constructed by fabricating a vertical pole on a lateral cantilever beam. Micro/nanofluidic components can be incorporated on the tip to perform various biological analyses. The Lab-on-Tip device also offers a new level of functionality and will be a useful tool for various studies such as nanotribology, biomechanics and so on.
{"title":"A Novel Lab-on-Tip Device for pico-Newton Lateral Force Measurement","authors":"Zhuo Wang, W. Khalid, Yong Xu","doi":"10.1109/ICSENS.2007.355741","DOIUrl":"https://doi.org/10.1109/ICSENS.2007.355741","url":null,"abstract":"We report the successful prototype development of a novel Lab-on-Tip device that provides a capability complementary to atomic force microscopy, namely, measurement of lateral forces with pico-Newton resolution. This Lab-on-Tip device is constructed by fabricating a vertical pole on a lateral cantilever beam. Micro/nanofluidic components can be incorporated on the tip to perform various biological analyses. The Lab-on-Tip device also offers a new level of functionality and will be a useful tool for various studies such as nanotribology, biomechanics and so on.","PeriodicalId":233838,"journal":{"name":"2006 5th IEEE Conference on Sensors","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125961892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-10-01DOI: 10.1109/ICSENS.2007.355818
S. Hainz, E. Ofner, D. Hammerschmidt, T. Werth
Incremental magnetic field sensors are frequently used in automotive applications for crankshaft and camshaft position measurements. Highest possible phase accuracy and disturbance immunity (air gap and temperature variations, noise) are the primary performance requirements for such sensor systems. An analog signal is generated from a magnetic field sensor and the position information is obtained using state of the art peak or zero crossing detection in the analogue or digital domain. While phase jitter of peak or zero crossings can be minimized by optimizing zero crossing and peak detection methods, these techniques cannot take into account variations of peak and zero crossing positions due to air gap variations. A Decision Feedback Equalizer (DFE) was adapted to remove this systematic error. For this purpose a physical model of the measurement environment (magnetic field) was derived and verified by Finite Element simulations (FEM). With simplifications the model delivered an analytical function for magnetic field calculations, which serve the adaptive algorithm for the DFE.
{"title":"Position Detection in Automotive Application by Adaptive Inter Symbol Interference Removal","authors":"S. Hainz, E. Ofner, D. Hammerschmidt, T. Werth","doi":"10.1109/ICSENS.2007.355818","DOIUrl":"https://doi.org/10.1109/ICSENS.2007.355818","url":null,"abstract":"Incremental magnetic field sensors are frequently used in automotive applications for crankshaft and camshaft position measurements. Highest possible phase accuracy and disturbance immunity (air gap and temperature variations, noise) are the primary performance requirements for such sensor systems. An analog signal is generated from a magnetic field sensor and the position information is obtained using state of the art peak or zero crossing detection in the analogue or digital domain. While phase jitter of peak or zero crossings can be minimized by optimizing zero crossing and peak detection methods, these techniques cannot take into account variations of peak and zero crossing positions due to air gap variations. A Decision Feedback Equalizer (DFE) was adapted to remove this systematic error. For this purpose a physical model of the measurement environment (magnetic field) was derived and verified by Finite Element simulations (FEM). With simplifications the model delivered an analytical function for magnetic field calculations, which serve the adaptive algorithm for the DFE.","PeriodicalId":233838,"journal":{"name":"2006 5th IEEE Conference on Sensors","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123408017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-10-01DOI: 10.1109/ICSENS.2007.355543
Masaharu Kozuka, T. Minamide, H. Saito, K. Otsuka, M. Takao, K. Mitsubayashi
Methyl mercaptan (MM: CH3SH) is known as one of major chemicals of halitosis (bad breath). Monoamine oxidase type-A (MAO-A) has been reported to catalyze the oxidation of methyl mercaptan for a xenobiotic metabolism in human liver. In this research, an oxygen sensitive optical fiber was applied for developing a optical bio-sniffer for methyl mercaptan in halitosis. An optical bio-sniffer was constructed by applying an MAO-A immobilized membrane onto the fiber-tip with a tube-ring. The optical device was possible to detect the oxygen consumption induced by MAO-A enzymatic reaction with methyl mercaptan as an index of halitosis level. As the result of the physiological application, the bio-sniffer could be successfully used the halitosis monitoring.
{"title":"An Optical Halitosis (Bad Breath) Sensor with Mao-A","authors":"Masaharu Kozuka, T. Minamide, H. Saito, K. Otsuka, M. Takao, K. Mitsubayashi","doi":"10.1109/ICSENS.2007.355543","DOIUrl":"https://doi.org/10.1109/ICSENS.2007.355543","url":null,"abstract":"Methyl mercaptan (MM: CH3SH) is known as one of major chemicals of halitosis (bad breath). Monoamine oxidase type-A (MAO-A) has been reported to catalyze the oxidation of methyl mercaptan for a xenobiotic metabolism in human liver. In this research, an oxygen sensitive optical fiber was applied for developing a optical bio-sniffer for methyl mercaptan in halitosis. An optical bio-sniffer was constructed by applying an MAO-A immobilized membrane onto the fiber-tip with a tube-ring. The optical device was possible to detect the oxygen consumption induced by MAO-A enzymatic reaction with methyl mercaptan as an index of halitosis level. As the result of the physiological application, the bio-sniffer could be successfully used the halitosis monitoring.","PeriodicalId":233838,"journal":{"name":"2006 5th IEEE Conference on Sensors","volume":"243 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123436123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-10-01DOI: 10.1109/ICSENS.2007.355516
Sin Kim, U. Ijaz, A. K. Khambampati, K. Kim, M. C. Kim
In the application of the electrical resistance tomography (ERT) to processes undergoing rapid transient, the conventional static image reconstruction approaches are not successful since the internal conductivity distribution may change during the time taken to acquire a full set of the induced voltages by the injected currents. Hence, the dynamic image reconstruction algorithm has been introduced to reconstruct the tomogram without the full set of data, in principle even with a single pair of current-voltage data. Although the pre-determined current injection protocol plays an important role in the image reconstruction performance, analyses of the effect of current injection patterns on the reconstruction performance have not been performed rigorously. This paper will report the consequences of various current injection protocols and investigates their influence on the reconstruction performance from the view point of the reconstruction error and the temporal resolution.
{"title":"Effect of Current Injection Patterns on Dynamic Electrical Resistance Imaging for Fast Transient Processes","authors":"Sin Kim, U. Ijaz, A. K. Khambampati, K. Kim, M. C. Kim","doi":"10.1109/ICSENS.2007.355516","DOIUrl":"https://doi.org/10.1109/ICSENS.2007.355516","url":null,"abstract":"In the application of the electrical resistance tomography (ERT) to processes undergoing rapid transient, the conventional static image reconstruction approaches are not successful since the internal conductivity distribution may change during the time taken to acquire a full set of the induced voltages by the injected currents. Hence, the dynamic image reconstruction algorithm has been introduced to reconstruct the tomogram without the full set of data, in principle even with a single pair of current-voltage data. Although the pre-determined current injection protocol plays an important role in the image reconstruction performance, analyses of the effect of current injection patterns on the reconstruction performance have not been performed rigorously. This paper will report the consequences of various current injection protocols and investigates their influence on the reconstruction performance from the view point of the reconstruction error and the temporal resolution.","PeriodicalId":233838,"journal":{"name":"2006 5th IEEE Conference on Sensors","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123799402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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