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2009 IEEE Sensors最新文献

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Autonomous valve for detection of biopolymer degradation 用于检测生物聚合物降解的自动阀
2009 IEEE Sensors Pub Date : 2009-10-01 DOI: 10.1109/ICSENS.2009.5398241
S. Keller, N. Noeth, S. Fetz, M. Grunefeld, O. Geschke, A. Boisen, D. Haefliger
{"title":"Autonomous valve for detection of biopolymer degradation","authors":"S. Keller, N. Noeth, S. Fetz, M. Grunefeld, O. Geschke, A. Boisen, D. Haefliger","doi":"10.1109/ICSENS.2009.5398241","DOIUrl":"https://doi.org/10.1109/ICSENS.2009.5398241","url":null,"abstract":"We present a polymer microvalve that allows the detection of biopolymer degradation without the need of external energy. The valve is based on a polymer container filled with a colored marker solution and closed by a thin lid. This structure is covered by a film of poly(L-lactide) and degradation of the biopolymer triggers the release of the color which is detected visually. The autonomous valve has potential for the fast testing of biopolymer degradation under various environmental conditions or by specific enzymes.","PeriodicalId":262591,"journal":{"name":"2009 IEEE Sensors","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129629743","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
Field dependence of magneto-mechanical damping in magnetostrictive material for magnetic field sensing 磁场传感用磁致伸缩材料磁机械阻尼的场依赖性
2009 IEEE Sensors Pub Date : 2009-10-01 DOI: 10.1109/ICSENS.2009.5398219
L. Bian, Y. Wen, Ping Li
{"title":"Field dependence of magneto-mechanical damping in magnetostrictive material for magnetic field sensing","authors":"L. Bian, Y. Wen, Ping Li","doi":"10.1109/ICSENS.2009.5398219","DOIUrl":"https://doi.org/10.1109/ICSENS.2009.5398219","url":null,"abstract":"The magneto-mechanical damping (MMD) in Terfenol-D is investigated by measuring the resonance vibration spectra of Terfenol-D bar. It is observed that MMD in Terfenol-D strongly depends on DC magnetic field (Hdc), and the ratio of the maximum variation of MMD over Hdc to the MMD at zero bias field achieves ∼255%. Taking advantage of this MMD dependence on Hdc, a coil-less DC magnetic field sensor is proposed by attaching a Terfenol-D layer to a piezoelectric micro-transformer. An analytical model for the composite micro-transformer is developed and validated. The results show that the transformer voltage gain is inversely proportional to its damping and therefore depends on Hdc. In addition, the sensor sensitivity can be controlled by changing the input voltage of the composite micro-transformer. Preliminary test results are presented as principle verification with a mesoscale Terfenol-D/Pb(Zr,Ti)O3 composite transformer. The experimental results show that the magneto-electric sensitivity with respect to Hdc achieves ∼5.54 mV/Oe under the excitation of an input voltage with magnitude of 0.5V.","PeriodicalId":262591,"journal":{"name":"2009 IEEE Sensors","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129712806","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
Optical sensing of neural activity in brain tissues 脑组织中神经活动的光学感应
2009 IEEE Sensors Pub Date : 2009-10-01 DOI: 10.1109/ICSENS.2009.5398130
Jonghwan Lee, S. J. Kim
{"title":"Optical sensing of neural activity in brain tissues","authors":"Jonghwan Lee, S. J. Kim","doi":"10.1109/ICSENS.2009.5398130","DOIUrl":"https://doi.org/10.1109/ICSENS.2009.5398130","url":null,"abstract":"This study, for the first time to our knowledge, demonstrated the spectral measurement of neural activity in brain tissues. Since the conventional optical sensing methods of brain activity suffered from the time delay of several seconds, this paper is aimed to a fundamental study for the development of a fast sensing technique free from the latency. For this purpose, we first investigated how the optical properties of the brain tissue change during neural activation even without the neurovascular coupling. We monitored the near-infrared (NIR) transmission and reflection spectra of a rat cortical slice while electrically evoking and recording neural activity. As the result, we found an optical change closely correlated with neural activity, which was verified by using the tetrodotoxin (TTX). In addition, we constructed a novel neuron model to verify our hypothesis on the origin of the optical signals.","PeriodicalId":262591,"journal":{"name":"2009 IEEE Sensors","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128307194","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
Effect of laser deflection on resonant cantilever sensors 激光偏转对谐振悬臂式传感器的影响
2009 IEEE Sensors Pub Date : 2009-10-01 DOI: 10.1109/ICSENS.2009.5398240
Chung-Kai Yang, A. Bossche, P. French, K. Gavan, H. V. D. van der Zant, H. Sadeghian, J. Goosen, F. van Keulen, E. van der Drift
{"title":"Effect of laser deflection on resonant cantilever sensors","authors":"Chung-Kai Yang, A. Bossche, P. French, K. Gavan, H. V. D. van der Zant, H. Sadeghian, J. Goosen, F. van Keulen, E. van der Drift","doi":"10.1109/ICSENS.2009.5398240","DOIUrl":"https://doi.org/10.1109/ICSENS.2009.5398240","url":null,"abstract":"Laser beam deflection is a well known method commonly used in detecting resonance frequencies in atomic force microscopes and in mass/force sensing. The method focuses a laser spot on the surface of cantilevers to be measured, which might change the mechanical properties of the cantilevers and affect the measurement accuracy. In this work we showed that the joule heating of the laser, besides other extrinsic effects such as surface contamination, can cause a significant amount of shift in the resonator. The longer and softer the cantilever is, the more significant the effect. We suggest that the laser effects on the resonant response of sensors have to be taken into account.","PeriodicalId":262591,"journal":{"name":"2009 IEEE Sensors","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128512502","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: 5
Sensitive in plane motion detection of NEMS through semiconducting (p+) piezoresistive gauge transducers 利用半导体(p+)压阻式传感器对NEMS进行灵敏的平面运动检测
2009 IEEE Sensors Pub Date : 2009-10-01 DOI: 10.1109/ICSENS.2009.5398391
E. Mile, G. Jourdan, L. Duraffourg, S. Labarthe, C. Marcoux, D. Mercier, P. Robert, P. Andreucci
{"title":"Sensitive in plane motion detection of NEMS through semiconducting (p+) piezoresistive gauge transducers","authors":"E. Mile, G. Jourdan, L. Duraffourg, S. Labarthe, C. Marcoux, D. Mercier, P. Robert, P. Andreucci","doi":"10.1109/ICSENS.2009.5398391","DOIUrl":"https://doi.org/10.1109/ICSENS.2009.5398391","url":null,"abstract":"We present a novel design for nano-electromechanical systems (NEMS) in plane motion detection using suspended Si (p+) doped piezoresistive nanowire gauge transducers. The devices are electrostatically actuated by a lateral electrode and detected through piezoresistive transduction using a synchronous down-mixing principle. This geometry enables a first order piezoresistive detection with the suspended gauges acting as strain collectors. The two piezoresitive gauges used in balanced bridge configuration offer remarkable background reduction. Maximizing the strain on the gauges and reducing the background resulted in a highly efficient NEMS motion detection technique providing unprecedented signal to background ratio (SBR) of 60dB with 40dB improvement on the state of the art. These devices were fabricated using CMOS compatible processes enabling very large scale integration and mass production.","PeriodicalId":262591,"journal":{"name":"2009 IEEE Sensors","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128277565","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: 5
Miniaturized flow-through sensor array for methane fermentation monitoring 用于甲烷发酵监测的小型流量传感器阵列
2009 IEEE Sensors Pub Date : 2009-10-01 DOI: 10.1109/ICSENS.2009.5398463
P. Ciosek, A. Buczkowska, E. Witkowska, W. Wróblewski, A. Zamojska, K. Szewczyk
{"title":"Miniaturized flow-through sensor array for methane fermentation monitoring","authors":"P. Ciosek, A. Buczkowska, E. Witkowska, W. Wróblewski, A. Zamojska, K. Szewczyk","doi":"10.1109/ICSENS.2009.5398463","DOIUrl":"https://doi.org/10.1109/ICSENS.2009.5398463","url":null,"abstract":"Electronic tongues (ETs) based on potentiometric sensor arrays are often used for foodstuff classification, origin recognition, estimation of complex samples' properties, etc. In the last few years they were also applied for fermentation monitoring, as a devices capable of fast, inexpensive, automated and on-line control of the process. In this work a novel application for ET is proposed - miniaturized flow-through sensor array was used for classification of samples obtained during anaerobic digestion of whey in sequence bioreactor.","PeriodicalId":262591,"journal":{"name":"2009 IEEE Sensors","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128987739","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: 4
Visualization and measurement of dissolved oxygen concentrations in hydrodynamic flow focusing 流体动力聚焦中溶解氧浓度的可视化与测量
2009 IEEE Sensors Pub Date : 2009-10-01 DOI: 10.1109/ICSENS.2009.5398377
V. Nock, R. Blaikie
{"title":"Visualization and measurement of dissolved oxygen concentrations in hydrodynamic flow focusing","authors":"V. Nock, R. Blaikie","doi":"10.1109/ICSENS.2009.5398377","DOIUrl":"https://doi.org/10.1109/ICSENS.2009.5398377","url":null,"abstract":"Oxygen is an important parameter with significant effect on cellular development and function. Based on microfluidics, laminar flow and hydrodynamic focusing provide ideal tools for the generation of controlled micro-environments and their application as stimuli to cells. In this paper we demonstrate, for the first time inside a microfluidic device, the generation and characterization of hydrodynamically focused streams with defined dissolved oxygen level. A solid-state oxygen sensor layer was integrated into a PDMS-based microchannel and calibrated. Several combinations of sample and buffer streams with concentrations ranging from 0 to 34 mg/L O2 were generated and measured down to a sample stream width of 20 µm. The device has the potential to provide novel insights into cell biology and improve the relevance of in-vitro cell assays.","PeriodicalId":262591,"journal":{"name":"2009 IEEE Sensors","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129031862","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: 5
Gas sensing characteristics of Au sensing electrode fabricated on YSZ single-crystals YSZ单晶制金传感电极的气敏特性
2009 IEEE Sensors Pub Date : 2009-10-01 DOI: 10.1109/ICSENS.2009.5398553
Vladimir V. Plashnitsa, P. Elumalai, Y. Fujio, N. Miura
{"title":"Gas sensing characteristics of Au sensing electrode fabricated on YSZ single-crystals","authors":"Vladimir V. Plashnitsa, P. Elumalai, Y. Fujio, N. Miura","doi":"10.1109/ICSENS.2009.5398553","DOIUrl":"https://doi.org/10.1109/ICSENS.2009.5398553","url":null,"abstract":"The nano-structured gold sensing electrodes (SEs) were fabricated on (100) and (111) surfaces of single-crystal (sc) yttria-stabilized zirconia (YSZ) plates utilizing colloidal gold solution of 5 nm. After annealing at 1000°C, Au was found to form the large square-like domains (ca. 5×5 µm) on (100) surface of YSZ, whereas the triangular-like domains with the size of 2–3 µm were observed on YSZ(111). Such a discrepancy in morphology of nano-Au SEs resulted in the different sensing properties of the fabricated sensors as well as their short-term stability. While the sensor based on YSZ(100) treated with Au showed high emf responses to the non-methane hydrocarbons (HCs) at 700°C under the wet condition, the sensor based on YSZ(111) gave highly selective and sensitive responses to NH3.","PeriodicalId":262591,"journal":{"name":"2009 IEEE Sensors","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129461662","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
Fiber-optic spectroscopic sensor for reactive dye mixture spectrum synthesis in textile industry 用于纺织工业活性染料混合光谱合成的光纤光谱传感器
2009 IEEE Sensors Pub Date : 2009-10-01 DOI: 10.1109/ICSENS.2009.5398214
O. Conde, A. Cubillas, P. Anuarbe, J. López-Higuera, M. Gutierrez, V. Martinez
{"title":"Fiber-optic spectroscopic sensor for reactive dye mixture spectrum synthesis in textile industry","authors":"O. Conde, A. Cubillas, P. Anuarbe, J. López-Higuera, M. Gutierrez, V. Martinez","doi":"10.1109/ICSENS.2009.5398214","DOIUrl":"https://doi.org/10.1109/ICSENS.2009.5398214","url":null,"abstract":"A method for the automatic synthesis of the Ultraviolet-Visible-Near Infrared (UV-Vis-NIR) absorption and transmission spectra of dye mixtures based on the absorption characteristics of their individual dyes is proposed in this paper. Multiple Linear Regression models (MLR) of each dye are obtained using a fiber-optic set-up operating in the 200-1100 nm wavelength range. Textile dyes are thick and dense and, consequently, optically opaque. This gives rise to high absorbance values which do not permit the direct comparison of different textile dye spectra for quality assurance purposes. The proposed multivariate method allows to construct a general model adjusted to the number and concentration of the dyes in the mixture. Furthermore, this dye spectrum synthesis can provide the optimum dilution factor needed to compare two different dye mixtures and test their similarity degree. With the proposed system, the obtained spectral correlation coefficients between the measured and synthesized spectra of a dye mixture are greater than 99% for both the transmission and absorption spectra.","PeriodicalId":262591,"journal":{"name":"2009 IEEE Sensors","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130538854","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: 5
A mechanical frequency up-conversion mechanism for vibration based energy harvesters 一种用于基于振动的能量采集器的机械频率上转换机构
2009 IEEE Sensors Pub Date : 2009-10-01 DOI: 10.1109/ICSENS.2009.5398419
O. Zorlu, E. Topal, H. Kulah
{"title":"A mechanical frequency up-conversion mechanism for vibration based energy harvesters","authors":"O. Zorlu, E. Topal, H. Kulah","doi":"10.1109/ICSENS.2009.5398419","DOIUrl":"https://doi.org/10.1109/ICSENS.2009.5398419","url":null,"abstract":"This paper presents a new mechanical frequency up-conversion (FUC) mechanism for harvesting energy from external low frequency vibrations. The structure consists of a magnet placed on a support, a polystyrene cantilever carrying a pick-up coil, and a mechanical barrier which converts low frequency vibrations to a higher frequency, hence increasing the efficiency of the system. The tested structure proved to give 20.3 mV and 68.7 ¿W RMS power output by up-converting 10 Hertz external vibration to 643 Hertz. The tests with different magnet configurations and cantilever lengths showed that horizontal cascading of the magnets improve the performance whereas an optimum cantilever length exits for the maximum generated power. An analytical model is also developed for the system, supporting the test results. The proposed structure is a good candidate to be realized by using microfabrication techniques in terms of generated voltage and power levels.","PeriodicalId":262591,"journal":{"name":"2009 IEEE Sensors","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127035017","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: 10
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