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Laser-Based Signal-Injection Attack on Piezoresistive MEMS Pressure Sensors 压阻式MEMS压力传感器的激光信号注入攻击
Pub Date : 2022-10-30 DOI: 10.1109/SENSORS52175.2022.9967044
Tatsuki Tanaka, T. Sugawara
As more and more information systems rely sen-sors for their critical decisions, there is a growing threat of injecting false signals to sensors in the analog domain. In particular, LightCommands showed that MEMS microphones are susceptible to light, through the photoacoustic and photoelectric effects, enabling an attacker to silently inject voice commands to smart speakers. Understanding such unexpected transduction mechanisms is essential for designing secure and reliable MEMS sensors. Is there any other transduction mechanism enabling laser-induced attacks? We positively answer the question by experimentally evaluating two commercial piezoresistive MEMS pressure sensors. By shining a laser light at the piezoresistors through an air hole on the sensor package, the pressure reading changes by ±1000 hPa with 0.5 mW laser power. This phenomenon can be explained by the photoelectric effect at the piezoresistors, which increases the number of carriers and decreases the resistance. We finally show that an attacker can induce the target signal at the sensor reading by shining an amplitude-modulated laser light.
随着越来越多的信息系统依赖于传感器进行关键决策,模拟域的传感器被注入假信号的威胁也越来越大。LightCommands特别表明,MEMS麦克风易受光的影响,通过光声和光电效应,使攻击者能够无声地向智能扬声器注入语音命令。了解这种意想不到的转导机制对于设计安全可靠的MEMS传感器至关重要。是否有其他的传导机制使激光诱发攻击?我们通过实验评估两个商用压阻式MEMS压力传感器来积极回答这个问题。激光通过传感器封装上的气孔照射压敏电阻,当激光功率为0.5 mW时,压力读数变化±1000 hPa。这种现象可以用压敏电阻处的光电效应来解释,它增加了载流子的数量,降低了电阻。我们最后表明,攻击者可以通过照射调幅激光在传感器读数处诱导目标信号。
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引用次数: 1
3D Sonar on Mars 火星上的3D声纳
Pub Date : 2022-10-30 DOI: 10.1109/SENSORS52175.2022.9967191
Jaime Aru, Erik Verreycken, D. Laurijssen, J. Steckel
In the last decades our never-ending desire for space exploration has grown exponentially. In this endeavour, one of the major points of interest is the red planet Mars. To autonomously navigate the Martian terrains a combination of optical sensors (LiDAR, Camera) are used in the latest NASA Perseverance Rover. However, the harsh Martian climate and dust storms can significantly impair the accuracy of these sensors due to their use of light as a medium. By utilising a 3D sonar sensor, which is not affected by bad visibility, we can attempt to reduce navigation issues. However, because of the many differences between the Earth and Mars (e.g. temperature, atmospheric pressure…), a degradation in performance can be expected for the 3D sonar sensor in comparison to its performance on Earth. We developed a simulation which can give us an estimate of the performance differences between a 3D sonar on Earth and one on Mars. This simulation is then used to asses performance in different realistic scenarios, like high winds and component failure. A Martian sonar would have reduced range compared to its terrestrial counterpart, but we believe it to be a worthwhile addition to current Mars rover's navigation methods.
在过去的几十年里,我们对太空探索永无止境的渴望呈指数级增长。在这一努力中,主要的兴趣点之一是红色星球火星。为了在火星地形上自主导航,NASA最新的毅力漫游车上使用了光学传感器(激光雷达、相机)的组合。然而,恶劣的火星气候和沙尘暴会严重损害这些传感器的准确性,因为它们使用光作为介质。通过使用不受恶劣能见度影响的3D声纳传感器,我们可以尝试减少导航问题。然而,由于地球和火星之间存在许多差异(例如温度、大气压力……),与地球上的性能相比,3D声纳传感器的性能可能会下降。我们开发了一个模拟系统,可以估算出地球上的3D声纳和火星上的3D声纳的性能差异。然后,这个模拟被用来评估不同现实场景下的性能,比如大风和组件故障。与地球上的同类相比,火星上的声纳可能会缩小探测范围,但我们相信它对目前火星探测器的导航方法来说是一个有价值的补充。
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引用次数: 0
Mouse Oocyte Characterization by Electrical Impedance Spectroscopy 电阻抗谱法表征小鼠卵母细胞
Pub Date : 2022-10-30 DOI: 10.1109/SENSORS52175.2022.9967210
Yuan Cao, J. Floehr, D. Azarkh, U. Schnakenberg
Artificial fertilization depends on the oocyte quality, especially on the zona pellucida. This gelatinous outer layer becomes soft before and hardens after sperm penetration. Here, we propose a setup that characterizes the stiffness of the zona pellucida of mouse oocytes by electrical impedance spectroscopy. Single oocytes are hydrodynamically trapped at an aperture, which is located between two ring-shaped electrodes. By applying weak negative pressures to the cell trap, the electrical impedance correlates with the stiffness of the zona pellucida.
人工受精取决于卵母细胞的质量,特别是透明带。这种凝胶状的外层在精子穿透前变软,在精子穿透后变硬。在这里,我们提出了一种设置,表征小鼠卵母细胞透明带的刚度电阻抗谱。单个卵母细胞被水动力学捕获在位于两个环形电极之间的孔中。通过对细胞阱施加弱负压,电阻抗与透明带的刚度相关。
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引用次数: 1
Motor Imagery Brain Activity Recognition through Data Augmentation using DC-GANs and Mu-Sigma 基于dc - gan和Mu-Sigma数据增强的运动图像脑活动识别
Pub Date : 2022-10-30 DOI: 10.1109/SENSORS52175.2022.9967231
Abhishek Khoyani, Harshdeep Kaur, Marzieh Amini, H. Sadreazami
The brain-computer interface is a technology that allows a machine to connect with the human brain and work based on the commands released by thoughts and activities of the brain. Electrodes are placed on the scalp and the changes in electric waves released by the brain are recorded as Electroencephalography (EEG) signals. In this work, we propose the use of generative adversarial networks and musigma methods to augment the EEG signals. Some of the existing deep learning methods such as convolutional neural network and recurrent neural network for classification of the EEG signals are implemented and their classification performance is examined with and without data augmentation. It is shown that the use of data augmentation can improve the performance of the EEG signal classification with deep learning models to a considerable extend.
脑机接口是一种技术,它允许机器与人脑连接,并根据大脑的思想和活动发出的命令进行工作。电极被放置在头皮上,大脑释放的电波的变化被记录为脑电图(EEG)信号。在这项工作中,我们提出使用生成对抗网络和音乐方法来增强脑电图信号。采用卷积神经网络和递归神经网络等现有的深度学习方法对脑电信号进行分类,并对其在数据增强和不增强情况下的分类性能进行了比较。结果表明,采用数据增强方法可以在很大程度上提高深度学习模型的脑电信号分类性能。
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引用次数: 2
Deep-Learned Air-Coupled Ultrasonic Sonar Image Enhancement and Object Localization 深度学习空气耦合超声声纳图像增强与目标定位
Pub Date : 2022-10-30 DOI: 10.1109/SENSORS52175.2022.9967244
Stefan Schulte, Gianni Allevato, Christoph Haugwitz, M. Kupnik
Air-coupled ultrasonic phased arrays are a complement to existing lidar-, camera- and radar-based sensors for object detection and spatial imaging. These in-air sonar systems typically use conventional beamforming (CBF) for high-frame rate image formation. Consequently, in real-world multi-target environments, the unique identification of reflectors is a challenging task due to the array-specific point spread function (PSF). Therefore, we present a neural auto-encoder network based on Xception for removing the PSF characteristics from CBF images and estimating the number of reflectors. Based on this information, the reflector coordinates are extracted by Gaussian mixture model clustering. We train and test the architecture on simulated and randomized multi-target CBF images. The performance is evaluated in terms of the localization precision, reflector count error and the angular resolution obtained. The preliminary results show a low mean error for the localization (-0.61°, -3 mm) and an accuracy of 83% for the reflector count estimation. The angular resolution of the given array can be improved from 14° to 2°. Overall, we highlight the potential of state-of-the-art auto-encoder networks, typically used for optical images, for CBF image enhancement and the combination with clustering for target localization.
空气耦合超声相控阵是对现有的基于激光雷达、相机和雷达的物体检测和空间成像传感器的补充。这些空中声纳系统通常使用传统的波束形成(CBF)来进行高帧率图像形成。因此,在现实世界的多目标环境中,由于阵列特定的点扩散函数(PSF),反射器的唯一识别是一项具有挑战性的任务。因此,我们提出了一种基于exception的神经自编码器网络,用于从CBF图像中去除PSF特征并估计反射器的数量。在此基础上,利用高斯混合模型聚类提取反射面坐标。我们在模拟和随机的多目标CBF图像上训练和测试了该架构。从定位精度、反射面计数误差和角度分辨率三个方面对该方法进行了评价。初步结果表明,定位的平均误差较低(-0.61°,-3 mm),估计反射镜计数的精度为83%。该阵列的角分辨率可从14°提高到2°。总的来说,我们强调了最先进的自动编码器网络的潜力,通常用于光学图像,CBF图像增强以及与目标定位的聚类相结合。
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引用次数: 0
Fabrication of Multimodal Image Sensor Capable of Simultaneous Measurement of Pressure and pH 能同时测量压力和pH值的多模态图像传感器的制造
Pub Date : 2022-10-30 DOI: 10.1109/SENSORS52175.2022.9967109
Mizuki Odaira, Yukihiro Tatsumi, Kensuke Murakami, Ken Ogasahara, Satoshi Shimizu, Yong-Joon Choi, Kazuhiro Takahashi, T. Noda, K. Sawada
In this study, we propose a pressure-ion image sensor that can simultaneously measure pressure and ion distribution with a patterned piezoelectric film on a pH image sensor. By patterning using photolithography and lift-off, a structure with alternating pressure and pH sensing areas was achieved, and the fabricated pressure-ion image sensor successfully visualized pH and pressure distribution simultaneously.
在这项研究中,我们提出了一种压力离子图像传感器,它可以同时测量pH图像传感器上的压力和离子分布。通过光刻和发射技术,实现了压力和pH感测区交替的结构,并成功地实现了pH和压力分布的同时可视化。
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引用次数: 0
Ex Vivo Blood Viscosity Monitoring with Piezoelectric MEMS Resonators 基于压电MEMS谐振器的体外血液粘度监测
Pub Date : 2022-10-30 DOI: 10.1109/SENSORS52175.2022.9967277
M. Schneider, Júlia Santasusagna, Ingrid Anna Maria Magnet, U. Schmid
This exploratory work demonstrates the potential of plate-type piezoelectric MEMS resonators for measuring the dynamic viscosity of human blood. These micromachined silicon sensors are operated in roof-tile shaped vibrational modes, featuring high quality factors in liquids. The quality factor of the 17 vibrational mode is used in combination with a sensor calibration procedure which is based on viscosity standards to monitor this fluidic material parameter. We demonstrate, that the MEMS sensor can provide real-time viscosity data over extended periods of time, which may be of high interest in cardiovascular medicine and medical applications such as extracorporal membrane oxygenation (ECMO).
这项探索性工作证明了板型压电MEMS谐振器在测量人体血液动态粘度方面的潜力。这些微机械硅传感器在屋顶瓦片形状的振动模式下工作,在液体中具有高质量的因素。17振动模式的质量因子与基于粘度标准的传感器校准程序结合使用,以监测该流体材料参数。我们证明,MEMS传感器可以提供长时间的实时粘度数据,这可能对心血管医学和体外膜氧合(ECMO)等医疗应用具有很高的兴趣。
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引用次数: 0
Miniaturized Passive Bio-mechanical Valve for Hydrocephalus Treatment 小型被动生物机械瓣膜治疗脑积水
Pub Date : 2022-10-30 DOI: 10.1109/SENSORS52175.2022.9967194
Yuna Jung, Daniel W. Gulick, J. Christen
Hydrocephalus is an accumulation of excess pressure in the brain due to malfunction of the fluid drainage system, arachnoid granulations. Standard treatment uses a shunt to drain excess cerebrospinal fluid to the abdomen. Conventional shunts suffer high failure rates over time. To reduce failure, we propose replacing the shunt with a miniaturized valve placed in the intracranial space. Our current prototype uses a duckbill valve design with 1 mm outlet width. The valve leaflets are silicone (PDMS), with the fluid channel defined using photolithography. In bench top pressure vs. flow testing, the silicone duckbill valve achieved the target cracking pressure range of 5 to 15 cmH2O with no cycling degradation or reverse flow leakage. Upcoming studies will monitor long-term degradation and test valve performance in vivo.
脑积水是由于液体引流系统、蛛网膜颗粒的故障而导致的脑内过度压力的积累。标准的治疗方法是使用分流器将多余的脑脊液引流到腹部。随着时间的推移,传统分流器的故障率很高。为了减少失败,我们建议用放置在颅内间隙的小型瓣膜代替分流器。我们目前的原型使用鸭嘴阀设计,出口宽度为1毫米。阀叶是硅胶(PDMS),流体通道使用光刻技术定义。在台架顶压流量测试中,硅胶鸭嘴阀达到了5 - 15 cmH2O的目标开裂压力范围,没有发生循环降解或倒流泄漏。接下来的研究将监测长期降解和测试阀门在体内的性能。
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引用次数: 0
An Optical Grasping Force Sensor for Minimally Invasive Surgical Robotic Forceps 用于微创手术机器人钳子的光学抓取力传感器
Pub Date : 2022-10-30 DOI: 10.1109/SENSORS52175.2022.9967143
Kazutaka Sato, Shuichi Morizane, Atsushi Takenaka, M. Ueki, T. Matsunaga, Sang-seok Lee
The purpose of this study is to realize the grasp force measurement of forceps for minimally invasive surgical robots. The minimally invasive surgical robots currently in widespread use limit the direct sensation of the surgeon, and require a high level of control skills and proficiency to use. To solve those problems, the grasping force sensing of the robotic forceps is needed. However, considering the practical aspects such as miniaturization and productivity, it is not easy to attach the conventional force sensor to the robotic forceps. In this study, we propose a novel grasping force sensing method using optical interference between ultra-thin optical fibers. We demonstrate the working principle of the grasp sensor through the sensor fabrication and evaluation.
本研究的目的是实现微创手术机器人钳的抓取力测量。目前广泛使用的微创手术机器人限制了外科医生的直接感觉,并且需要高水平的控制技能和熟练程度才能使用。为了解决这些问题,需要机器人钳的抓取力传感。然而,考虑到小型化和生产效率等实际问题,将传统的力传感器附着在机器人钳上并不容易。在这项研究中,我们提出了一种利用超薄光纤之间的光干涉来感知抓取力的新方法。通过传感器的制作和评估,论证了抓握传感器的工作原理。
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引用次数: 0
Stencil Printing of Low-Cost Carbon-Based Stretchable Strain Sensors 低成本碳基可拉伸应变传感器的模板打印
Pub Date : 2022-10-30 DOI: 10.1109/SENSORS52175.2022.9967200
Visva Moorthy, P. Kassanos, E. Burdet, E. Yeatman
The rapidly growing field of stretchable sensors has recently produced a myriad of sensing devices. However, these are often realized using expensive materials and complex manufacturing techniques. This work demonstrates stretchable stencil printed strain sensors, fabricated using either graphite or carbon black as a conductive filler in a polydimethylsiloxane (PDMS) matrix, that was also used as the device substrate. The strain sensors demonstrated highly linear responses and sensitivities (R2 = 0.95 and R2 = 0.98, and gauge factors of 2.77 and 1.50, respectively) that are comparable to other published sensors manufactured using similar or more complex processes.
快速发展的可拉伸传感器领域最近产生了无数的传感设备。然而,这些通常是使用昂贵的材料和复杂的制造技术来实现的。这项工作展示了可拉伸的模板印刷应变传感器,使用石墨或炭黑作为导电填料在聚二甲基硅氧烷(PDMS)基体中制造,也用作器件衬底。该应变传感器表现出高度的线性响应和灵敏度(R2 = 0.95和R2 = 0.98,测量因子分别为2.77和1.50),与使用类似或更复杂工艺制造的其他已发表的传感器相当。
{"title":"Stencil Printing of Low-Cost Carbon-Based Stretchable Strain Sensors","authors":"Visva Moorthy, P. Kassanos, E. Burdet, E. Yeatman","doi":"10.1109/SENSORS52175.2022.9967200","DOIUrl":"https://doi.org/10.1109/SENSORS52175.2022.9967200","url":null,"abstract":"The rapidly growing field of stretchable sensors has recently produced a myriad of sensing devices. However, these are often realized using expensive materials and complex manufacturing techniques. This work demonstrates stretchable stencil printed strain sensors, fabricated using either graphite or carbon black as a conductive filler in a polydimethylsiloxane (PDMS) matrix, that was also used as the device substrate. The strain sensors demonstrated highly linear responses and sensitivities (R2 = 0.95 and R2 = 0.98, and gauge factors of 2.77 and 1.50, respectively) that are comparable to other published sensors manufactured using similar or more complex processes.","PeriodicalId":120357,"journal":{"name":"2022 IEEE Sensors","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126699687","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}
引用次数: 1
期刊
2022 IEEE Sensors
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