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Flexible sweat sensors for non-invasive optimization of lithium dose in psychiatric disorders 柔性汗液传感器用于精神疾病锂剂量的无创优化
2019 IEEE SENSORS Pub Date : 2019-10-01 DOI: 10.1109/SENSORS43011.2019.8956598
F. Criscuolo, Filippo Cantù, I. Taurino, S. Carrara, G. Micheli
{"title":"Flexible sweat sensors for non-invasive optimization of lithium dose in psychiatric disorders","authors":"F. Criscuolo, Filippo Cantù, I. Taurino, S. Carrara, G. Micheli","doi":"10.1109/SENSORS43011.2019.8956598","DOIUrl":"https://doi.org/10.1109/SENSORS43011.2019.8956598","url":null,"abstract":"Lithium is the main drug in the prophylaxis of Bipolar Disorder (BD) as it acts as a mood stabilizer. However, due to its narrow therapeutic range, patients are obliged to frequent check-ups in hospital to control their lithium blood level and optimize the dose.In this paper, we propose for the first time a wearable electrochemical sensor for the non-invasive decentralized Therapeutic Drug Monitoring (TDM) of lithium in sweat. The system is made of a platinum potentiometric sensor with an electrochemically nanostructured solid-contact and a silver Reference Electrode (RE). The optimal coverage and successful nanostructuration of the working electrode, useful to significantly reduce drift, is confirmed by Scanning Electron Microscopy (SEM). The integrated flexible RE is chemically chlorinated and covered with a PVC membrane doped with an Ionic Liquid (IL) to improve its stability. The sensing system is then tested both in aqueous solution and in sweat, showing quasi-Nernstian slope (56.8±3.9 mV /decade) in the range of clinical interest.","PeriodicalId":6710,"journal":{"name":"2019 IEEE SENSORS","volume":"58 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74343404","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: 11
Assessment of the Influence of Photodiode Size on RSS-Based Visible Light Positioning Precision 光电二极管尺寸对基于rss的可见光定位精度影响的评估
2019 IEEE SENSORS Pub Date : 2019-10-01 DOI: 10.1109/SENSORS43011.2019.8956543
Willem Raes, Sander Bastiaens, D. Plets, N. Stevens
{"title":"Assessment of the Influence of Photodiode Size on RSS-Based Visible Light Positioning Precision","authors":"Willem Raes, Sander Bastiaens, D. Plets, N. Stevens","doi":"10.1109/SENSORS43011.2019.8956543","DOIUrl":"https://doi.org/10.1109/SENSORS43011.2019.8956543","url":null,"abstract":"This work discusses the influence of a photodiodes effective area size on the precision of received signal strength-based visible light positioning. It analyzes how two silicon-based photodiodes with different effective area perform as a receiver under varying illumination conditions. The two main findings are that it is not particularly needed to select a photodiode with a large surface area, despite the higher received signal strength, due to a higher noise contribution. On the other hand, the spread on the distance estimation is much smaller than 1 mm under standard illumination levels for the two photodiodes with a significantly different surface area, so that both photodiodes deliver enough precision.","PeriodicalId":6710,"journal":{"name":"2019 IEEE SENSORS","volume":"112 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74396336","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: 0
Passive Proximity Detection Based on a Miniaturized Pyramidal Optical Sensor 基于小型锥体光学传感器的被动接近检测
2019 IEEE SENSORS Pub Date : 2019-10-01 DOI: 10.1109/SENSORS43011.2019.8956834
Ashis Rai, D. Zhuo, B. Bahreyni
{"title":"Passive Proximity Detection Based on a Miniaturized Pyramidal Optical Sensor","authors":"Ashis Rai, D. Zhuo, B. Bahreyni","doi":"10.1109/SENSORS43011.2019.8956834","DOIUrl":"https://doi.org/10.1109/SENSORS43011.2019.8956834","url":null,"abstract":"In this paper, we present the design principle and experimental results from a fabricated prototype of an optical proximity sensor. The sensor base is a pyramid with light sensors attached to its sides and the top. The sensor estimates the direction and distance to the light source using ratios of light intensity received on the sides. We demonstrate that it is further possible to decompose a single pyramid into two virtual, off-center pyramids. Using the independently measured angles to the light sources from these two pyramids, it is possible to estimate the distance to the light source. Advantages of the presented approach to existing proximity sensors include: Passive operation, Low power consumption, Simple fabrication and Wide response angle. The device structure can be realized using standard microfabrication techniques, providing a straightforward path for mass-manufacturing and arraying such devices.","PeriodicalId":6710,"journal":{"name":"2019 IEEE SENSORS","volume":"39 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74870038","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: 2
Wireless stretchable SAW sensors based on Z-cut lithium niobate 基于z切割铌酸锂的无线可拉伸SAW传感器
2019 IEEE SENSORS Pub Date : 2019-10-01 DOI: 10.1109/SENSORS43011.2019.8956784
Cécile Floer, S. Hage-Ali, Louis Verzellesi, L. Badie, O. Elmazria, S. Zhgoon
{"title":"Wireless stretchable SAW sensors based on Z-cut lithium niobate","authors":"Cécile Floer, S. Hage-Ali, Louis Verzellesi, L. Badie, O. Elmazria, S. Zhgoon","doi":"10.1109/SENSORS43011.2019.8956784","DOIUrl":"https://doi.org/10.1109/SENSORS43011.2019.8956784","url":null,"abstract":"Surface acoustic wave devices are increasingly used as sensors, especially because they can be batteryless, wireless and packageless. With these features they become particularly interesting in the field of flexible electronics for the monitoring of the human body parameters. By combining a thinned lithium niobate Z-cut substrate to ultrathin and stretchable antennas, a remote temperature measurement has been demonstrated. The addition of two protective layers to obtain a packageless structure seems promising to achieve wireless temperature measurements on the skin.","PeriodicalId":6710,"journal":{"name":"2019 IEEE SENSORS","volume":"37 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84903959","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: 0
Evanescent field waveguide particle detector : Simulations concerning size and shape dependence 倏逝场波导粒子探测器:有关尺寸和形状依赖的模拟
2019 IEEE SENSORS Pub Date : 2019-10-01 DOI: 10.1109/SENSORS43011.2019.8956715
A. Tortschanoff, J. Pribošek, M. Baumgart, Anton Buchberger, A. Bergmann
{"title":"Evanescent field waveguide particle detector : Simulations concerning size and shape dependence","authors":"A. Tortschanoff, J. Pribošek, M. Baumgart, Anton Buchberger, A. Bergmann","doi":"10.1109/SENSORS43011.2019.8956715","DOIUrl":"https://doi.org/10.1109/SENSORS43011.2019.8956715","url":null,"abstract":"Evanescent field particle scattering is a promising tool for single particle detection. Here we performed a detailed analysis to predict feasibility, potential and limitations of this sensing mechanism. First results from analytic estimations as well as 2D-simulations predict the feasibility of single particle detection but also a highly non-trivial dependence of the signals on size, shape and number of particles.","PeriodicalId":6710,"journal":{"name":"2019 IEEE SENSORS","volume":"53 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85014986","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
Salient Representation for Lung Sound Analysis Based on the JAMF Transform 基于JAMF变换的肺音分析显著表示
2019 IEEE SENSORS Pub Date : 2019-10-01 DOI: 10.1109/SENSORS43011.2019.8956546
Jonathan Cazaerck, E. Lauwers, Kris Ides, K. Hoorenbeeck, S. Verhulst, W. Daems, J. Steckel
{"title":"Salient Representation for Lung Sound Analysis Based on the JAMF Transform","authors":"Jonathan Cazaerck, E. Lauwers, Kris Ides, K. Hoorenbeeck, S. Verhulst, W. Daems, J. Steckel","doi":"10.1109/SENSORS43011.2019.8956546","DOIUrl":"https://doi.org/10.1109/SENSORS43011.2019.8956546","url":null,"abstract":"Obstructive lung diseases are a family of diseases affecting the respiratory tract. By auscultation of the lungs, trained physicians can determine abnormal pathologies by listening to these lung sounds. When these lung sounds are recorded, the analysis can be performed by means of digital signal processing, often referred to as Computer-Aided Lung Sound Analysis (CALSA). The human hear is somewhat limited in it’s capabilities to detect and quantify small perceptual changes to the lung sound scene. The goal of CALSA is to be able to make objective conclusions on the state of the patient. In order to achieve this, the data recorded from the stethoscope must be transformed into a representation that allows efficient interpretation, either by a trained physician or a computer algorithm. In this paper, we propose the Joint Acoustic and Frequency Modulation representation as a useful tool for lung sound analysis, and illustrate the representation of various lung sounds in the transformed domain.","PeriodicalId":6710,"journal":{"name":"2019 IEEE SENSORS","volume":"77 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85078215","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: 0
Ultrasensitive room-temperature chemical sensors by Ag-decorated ultraporous ZnO nanoparticle networks ag修饰的超多孔ZnO纳米粒子网络的超灵敏室温化学传感器
2019 IEEE SENSORS Pub Date : 2019-10-01 DOI: 10.1109/SENSORS43011.2019.8956926
Hongjun Chen, Renheng Bo, Lu Qi, A. Dodd, M. Saunders, T. White, T. Tsuzuki, A. Tricoli
{"title":"Ultrasensitive room-temperature chemical sensors by Ag-decorated ultraporous ZnO nanoparticle networks","authors":"Hongjun Chen, Renheng Bo, Lu Qi, A. Dodd, M. Saunders, T. White, T. Tsuzuki, A. Tricoli","doi":"10.1109/SENSORS43011.2019.8956926","DOIUrl":"https://doi.org/10.1109/SENSORS43011.2019.8956926","url":null,"abstract":"Highly sensitive room temperature gas sensors consisting of ultraporous ZnO nanoparticle networks decorated with Ag nanoparticles (NPs) were fabricated by nanoparticle aerosol self-assembly and sequential sputtering. Optimization of the AgNPs loading and the thickness of ultraporous ZnO networks lead to a sensor response, defined as the ratio of resistance change, of 1.8 and 7.4 at 0.1 and 1 ppm ethanol concentrations, respectively, at room temperature under light irradiation. This is ~ 10 times higher than that of pure ultraporous ZnO film under the same experimental conditions. Furthermore, the optimal AgNPs-decorated ultraporous ZnO films can detect as low as 5 ppb of ethanol gas at room temperature under light illumination. The high sensitivity of AgNPs-decorated ZnO film can be ascribed to the synergistic effects of the ultraporous nanoparticle network morphology, AgNPs sensitization and light-assisted photo-excited gas-sensing process. These provide directions for the design of high sensitive metal-oxide semiconductor-based gas sensors capable to operate at room temperature.","PeriodicalId":6710,"journal":{"name":"2019 IEEE SENSORS","volume":"6 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85083998","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: 0
AirleakSlam: Detection of Pressurized Air Leaks Using Passive Ultrasonic Sensors
2019 IEEE SENSORS Pub Date : 2019-10-01 DOI: 10.1109/SENSORS43011.2019.8956631
Anthony Schenck, W. Daems, J. Steckel
{"title":"AirleakSlam: Detection of Pressurized Air Leaks Using Passive Ultrasonic Sensors","authors":"Anthony Schenck, W. Daems, J. Steckel","doi":"10.1109/SENSORS43011.2019.8956631","DOIUrl":"https://doi.org/10.1109/SENSORS43011.2019.8956631","url":null,"abstract":"It is estimated that up to a third of the power consumption of compressed air networks is lost due to undetected leaks. Current methods of detecting and locating these air leaks involve manual labor using handheld devices that can detect the ultrasonic sound generated by the escaping air. In addition, the extra energy costs caused by the air leaks are concealed in the total cost of energy, reducing the sense of needing to find a solution. Therefore, there is limited commitment to actively detect and repair these air leaks. In order to address this issue, we propose a solution that requires no manual labor in the localization process, by fitting existing factory vehicles with an enclosure containing all the required sensors: a laser scanner for SLAM localization and an ultrasonic microphone array. By combining SLAM techniques with our ultrasonic microphone array on a robot, we are able to locate leaks in a large environment with high precision in 3D. By automating this process we aim to encourage the industry to proactively search for air leaks to reduce the amount of energy loss at a fraction of the cost of current methods.","PeriodicalId":6710,"journal":{"name":"2019 IEEE SENSORS","volume":"77 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79468965","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
Influence of sensor blockage on automotive LiDAR systems 传感器阻塞对汽车激光雷达系统的影响
2019 IEEE SENSORS Pub Date : 2019-10-01 DOI: 10.1109/SENSORS43011.2019.8956792
Manuel Trierweiler, Pedro Caldelas, Gabriel Gröninger, T. Peterseim, C. Neumann
{"title":"Influence of sensor blockage on automotive LiDAR systems","authors":"Manuel Trierweiler, Pedro Caldelas, Gabriel Gröninger, T. Peterseim, C. Neumann","doi":"10.1109/SENSORS43011.2019.8956792","DOIUrl":"https://doi.org/10.1109/SENSORS43011.2019.8956792","url":null,"abstract":"Performance degradation of automotive LiDAR systems due to contamination of the sensor cover is a key problem for self-driving cars in harsh environments. Here the influence of standardized dust on the maximum range of a LiDAR sensor is investigated. Several samples were prepared for the study covering a transmission range from 65-94%. For each sample, several pointclouds at varying distances of a specified target were recorded and evaluated. The results exhibit a reduction of the sensor maximum range up to 75%.","PeriodicalId":6710,"journal":{"name":"2019 IEEE SENSORS","volume":"25 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84654306","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: 14
Miniature Acoustic Resonator for Enhanced Lab-on-a-Chip Electroanalysis 用于增强芯片实验室电分析的微型声学谐振器
2019 IEEE SENSORS Pub Date : 2019-10-01 DOI: 10.1109/SENSORS43011.2019.8956499
Xiaohe Wang, Pengfei Niu, Lei Zhao, Yuan Ning, Sheng Sun, Menglun Zhang, W. Pang
{"title":"Miniature Acoustic Resonator for Enhanced Lab-on-a-Chip Electroanalysis","authors":"Xiaohe Wang, Pengfei Niu, Lei Zhao, Yuan Ning, Sheng Sun, Menglun Zhang, W. Pang","doi":"10.1109/SENSORS43011.2019.8956499","DOIUrl":"https://doi.org/10.1109/SENSORS43011.2019.8956499","url":null,"abstract":"In lab-on-a-chip electroanalysis, the mass transfer of electroactive species towards the electrode surface limits the detection performance due to the difficulty in applying external convection. In this study, we proposed to integrate miniature acoustic resonator, fabricated by microelectrochemical system, within on-chip electroanalytical platform to improve electrochemical process. Gold film electrochemical sensor chip and acoustic resonator were assembled face-to-face with a polydimethylsiloxane chamber in between. Cyclic voltammetric (CV) responses of ferrocenemethanol were tested under actuation of miniature acoustic resonator at various powers. Resonator’s actuation results in sigmoidal CV curves and the diffusion limited current increases with the rise of applied power on resonator. The advantages of miniature acoustic resonator, including submillimeter small size, mass fabricability, low cost, low energy consumption, as well as outstanding performance towards enhancing electrochemical process, will strongly contribute to the development of highly-sensitive compact sono-electroanalytical devices.","PeriodicalId":6710,"journal":{"name":"2019 IEEE SENSORS","volume":"5 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84678005","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
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