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IEEE SENSORS 2014 Proceedings最新文献

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Inkjet printed differential mode touch and humidity sensors on injection molded polymer packages 喷墨印刷差分模式触摸和湿度传感器在注塑成型的聚合物包装
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985485
V. Matić, Laura Liedtke, T. Guenther, Andre Buelau, A. Ilchmann, Juergen Keck, B. Polzinger, W. Eberhardt, H. Kueck
{"title":"Inkjet printed differential mode touch and humidity sensors on injection molded polymer packages","authors":"V. Matić, Laura Liedtke, T. Guenther, Andre Buelau, A. Ilchmann, Juergen Keck, B. Polzinger, W. Eberhardt, H. Kueck","doi":"10.1109/ICSENS.2014.6985485","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985485","url":null,"abstract":"Today's printed electronics are mainly focused on producing sensors on thin, flexible, smooth foils, which limits their use on 2D applications. Within this study we report on the design of inkjet printed capacitive touch and humidity sensors on thermoplastic substrates, to fabricate printed functional structures on injection molded 3D components. Both sensors are based on printed differential interdigital capacitors (IDC) made of silver ink and a printed sensitive layer. Reproducible results and low hysteresis were achieved, proving the concept to be able to improve sensitivity and to reduce drift effects due to temperature as well as moisture absorption by the substrate.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"349 1","pages":"2234-2237"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82591358","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: 8
Impulsively excited Surface Phononic Crystals: A route towards novel sensing schemes 冲动激发表面声子晶体:通往新型传感方案的途径
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985145
D. Nardi, M. Murnane, H. Kapteyn, M. Travagliati, G. Ferrini, C. Giannetti, F. Banfi
{"title":"Impulsively excited Surface Phononic Crystals: A route towards novel sensing schemes","authors":"D. Nardi, M. Murnane, H. Kapteyn, M. Travagliati, G. Ferrini, C. Giannetti, F. Banfi","doi":"10.1109/ICSENS.2014.6985145","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985145","url":null,"abstract":"The application of all-optical time resolved techniques to nanostructured Surface Phononic Crystals enables the generation and detection of hypersonic frequency surface acoustic waves up to 50 GHz, with great potential for breakthroughs in nanometrology and sensing applications. Here we review the advances in this field both in the theory and experiments, focusing on the progress in non-destructive ultrathin films nanometrology and the promise of dramatically increasing mass sensors sensitivity due to enhanced acoustic wave surface confinement.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"33 1","pages":"895-898"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84004709","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: 3
Detection of biological targets by using porous polymer and metamaterial mesh sensors 利用多孔聚合物和超材料网状传感器检测生物靶点
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985474
Tetsuhito Suzuki, Y. Ogawa, N. Kondo, T. Kondo, S. Kamba
{"title":"Detection of biological targets by using porous polymer and metamaterial mesh sensors","authors":"Tetsuhito Suzuki, Y. Ogawa, N. Kondo, T. Kondo, S. Kamba","doi":"10.1109/ICSENS.2014.6985474","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985474","url":null,"abstract":"Rapid and easy detection of biological sample such as bacteria was performed by combining a metamaterial mesh sensor (metal film with periodic holes) with porous polymer layer to extract target efficiently. The porous polymer enables to extract target physically as filter, and to immobilize biological molecules such as antibody sufficiently. In this report, Escherichia coli (E. coli) deposited on PTFE filter was detected experimentally. Frequency shifts of transmission peaks at about 9.4 THz showed clear correlation with number of the bacteria, and sensitivity reached to 1.5×105 /mm2 (150 ng/mm2 of weight). It was also succeeded to fix porous polymer layer to the metal structure directly, which expects the sensor to be operated more easily.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"26 1","pages":"2191-2194"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80232804","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
Stable and reusable electrochemical sensor for continuous monitoring of phosphate in water 稳定和可重复使用的电化学传感器，用于连续监测水中的磷酸盐
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985280
L. Hsu, P. Selvaganapathy
{"title":"Stable and reusable electrochemical sensor for continuous monitoring of phosphate in water","authors":"L. Hsu, P. Selvaganapathy","doi":"10.1109/ICSENS.2014.6985280","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985280","url":null,"abstract":"Orthophosphates are one of the major pollutants of water resources worldwide. However, a simple autonomous and continuous method to measure them does not exist. Here we present a novel design of electrochemical phosphate (PO43-) sensor that is stable, reagent-less, can be used multiple times without degradation and is not significantly affected by common interferences. This new design has been shown to have good sensing response of phosphate in the concentration spanning clean to waste water (10-1 to 10-4 M). It also overcomes the two major disadvantages of other phosphate sensors, namely: lifetime and interference by its unique design. Due to its many advantages, this sensor is a viable option for autonomous and continuous monitoring of phosphates in the environment.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"51 1","pages":"1423-1426"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80730711","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
Sensing of thermal thresholds using UWB RFID passive tags 使用超宽带RFID无源标签感测热阈值
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985300
A. Ramos, A. Lázaro, R. Villarino, D. Girbau
{"title":"Sensing of thermal thresholds using UWB RFID passive tags","authors":"A. Ramos, A. Lázaro, R. Villarino, D. Girbau","doi":"10.1109/ICSENS.2014.6985300","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985300","url":null,"abstract":"In this work a wireless temperature sensor is developed to detect thermal thresholds. It consists of a completely-passive ultra-wideband radiofrequency identification tag, based on an antenna connected to a delay line. The delay line is loaded by a nitinol thermal switch. The switch modifies the amplitude of the backscattered signal when a temperature threshold is surpassed. The sensor is able to store the occurrence of the thermal threshold violation and performs the sensing activity independently of the reader interrogation. The length of the delay line defines a unique identification code for the sensor, which is read using a low-cost ultra-wideband radar.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"163 1 1","pages":"1503-1506"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77829634","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
Remoldable inductors based on self-heating fusible alloys 基于自热易熔合金的可重构电感器
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985312
N. Lazarus, S. Bedair, C. Meyer
{"title":"Remoldable inductors based on self-heating fusible alloys","authors":"N. Lazarus, S. Bedair, C. Meyer","doi":"10.1109/ICSENS.2014.6985312","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985312","url":null,"abstract":"Wirelessly powering sensor systems attached to a curved or non-planar surface requires inductor coils able to conform to an irregular geometry. In this work, a coil is demonstrated based on pulling a low melting point (fusible) metal alloy in liquid form through fluidic channels in soft silicone. Although solid at room temperature, when inductors made of Field's metal are heated through Joule heating above the melting point (62°C) of the alloy, the traces melt, allowing deformation to conform to a surface. The heating power can then be removed, causing the alloy to solidify and hold the new shape. This recasting is demonstrated by creating a mechanically tunable inductor. The coil is stretched to tune the inductance while liquid, with solidification used as a latching mechanism to hold the inductance with zero static power. During tuning, an applied power of 0.8 W is used to melt the inductor traces. Tuning of 50%, from 96 nH to 147 nH, is demonstrated with a fusible alloy inductor; when the inductor was again re-heated, the inductance returned to the initial value due to the restoring mechanical force of the surrounding silicone.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"7 1","pages":"1551-1554"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89788270","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
Interplay between active sites of modified nanocrystalline tin dioxide and selectivity to CO and NH3 gases 改性纳米晶二氧化锡活性位点与CO和NH3气体选择性的相互作用
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985120
A. Marikutsa, M. Rumyantseva, A. Gaskov
{"title":"Interplay between active sites of modified nanocrystalline tin dioxide and selectivity to CO and NH3 gases","authors":"A. Marikutsa, M. Rumyantseva, A. Gaskov","doi":"10.1109/ICSENS.2014.6985120","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985120","url":null,"abstract":"A specific effect of surface modifiers on the active sites of sol-gel synthesized nanocrystalline tin dioxide improving its selectivity to CO and NH<sub>3</sub> gases was demonstrated. Introducing PdO<sub>x</sub> clusters led to the increase of OH-groups concentration, while that of RuO<sub>y</sub> - to accumulation of active oxygen species on the SnO<sub>2</sub> surface. This interplay contributes to increased low-temperature CO-sensitivity of SnO<sub>2</sub>/PdO<sub>x</sub> and to high NH<sub>3</sub>-sensitivity of SnO<sub>2</sub>/RuO<sub>y</sub> at raised temperature. Cross-sensitivity tests to CO+NH<sub>3</sub> mixtures in air revealed the possibility to discriminate the reductive gases by modified SnO<sub>2</sub>-based sensors operated at appropriate temperature. The impact of different active sites to the selectivity improvement was estimated. In situ DRIFT studies indicated a key role of catalytic clusters in promoting selective SnO<sub>2</sub>/PdO<sub>x</sub>-CO and SnO<sub>2</sub>/RuO<sub>y</sub>-NH<sub>3</sub> interactions. Possible sensor signal formation processes were suggested regarding the modifiers catalytic action and their distinctive influence on tin dioxide active sites.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"74 1","pages":"799-802"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89898911","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
Gold-tin eutectic bonding for hermetic packaging of MEMS devices with vertical feedthroughs 垂直馈通MEMS器件密封封装的金-锡共晶键合
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985473
M. M. Torunbalci, E. Demir, I. Donmez, S. E. Alper, T. Akin
{"title":"Gold-tin eutectic bonding for hermetic packaging of MEMS devices with vertical feedthroughs","authors":"M. M. Torunbalci, E. Demir, I. Donmez, S. E. Alper, T. Akin","doi":"10.1109/ICSENS.2014.6985473","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985473","url":null,"abstract":"This paper presents a new method for wafer-level hermetic encapsulation of MEMS devices using low-temperature (280 to 300°C) Au-Sn eutectic bonding applied to the recently developed advanced MEMS (A-MEMS) process of the METU-MEMS Research Center, which uses an SOI cap wafer with vertical feedthroughs that does not need any complex via-refill or trench-refill process steps. The Au-Sn eutectic bonding process is achieved at 300°C with a bond pressure of 2 MPa by using a sealing alloy thickness less than 1.5 μm. The package pressure is characterized to be around 250 mTorr, without any getter activation. The remelting temperature of the Au-Sn bonding interface is measured by using differential scanning calorimetry (DSC) analysis and found to be around 280°C, verifying that the bonding is achieved at the desired eutectic composition (80% Au and 20% Sn), also confirmed by the energy dispersive X-ray spectroscopy (EDS) analysis. The shear strengths of several packages are measured to be above 20 MPa, indicating a mechanically-strong bonding. The robustness of the packages is also tested by subjecting them to high temperature storage at 200°C for 24 hours, and no degradation is observed in the hermeticity of the packages at the end of this period.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"20 1","pages":"2187-2190"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89489879","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: 8
First-principles study on the mechanical and electrical properties of unpassivated Si nanowires in <111> direction 方向上未钝化硅纳米线力学和电学性能的第一性原理研究
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985061
Jian-Bo Zhu, Rui-Feng Han, S. Lei, Chuanxin Wen, Hong Yu, Qing‐An Huang
{"title":"First-principles study on the mechanical and electrical properties of unpassivated Si nanowires in <111> direction","authors":"Jian-Bo Zhu, Rui-Feng Han, S. Lei, Chuanxin Wen, Hong Yu, Qing‐An Huang","doi":"10.1109/ICSENS.2014.6985061","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985061","url":null,"abstract":"Through systematic first-principles calculations, We have obtained the Young's modulus and piezoresistance coefficients in unpassivated Si nanowires in <;111> direction. All the models are with different diameters. The results based on density functional theory (DFT) have revealed that with the decrease of the diameter, the length of unit cell decreases, and Young's modulus changes bigger sharply as the diameter is small enough. For the piezoresistive properties, Si74 nanowires are more sensitive than the others under different strain conditions, and the piezoresistance coefficients have reached as much as 41.3×10-11Pa-1. However, the piezoresistance coefficients of Si122 and Si182, especially Si182, have changed little under different strain conditions. All these stem from the different kinds of the surface reconstructions and size effects. What's more, the distribution of the partial charge density has been calculated for the further investigation about the electrical properties of unpassivated Si nanowires.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"13 1","pages":"566-569"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85776202","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
A readout system for pellistors with pulsed thermal feedback 具有脉冲热反馈的贮瓶读出系统
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985227
O. Leman, M. Srivastava, J. Hauer
{"title":"A readout system for pellistors with pulsed thermal feedback","authors":"O. Leman, M. Srivastava, J. Hauer","doi":"10.1109/ICSENS.2014.6985227","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985227","url":null,"abstract":"Catalytic flammable gas sensors are used for safety in places where the accumulation of flammable gasses can generate a blast. These devices measure the flammable gas concentration via the heat produced by the catalysis of the gas by a heated catalytic coating. We propose the design and implementation of a readout system based on feedback heat pulses. In the proposed system, the heat of catalysis is directly measured via its compensation by a controlled feedback heat power. Contrary to that proposed sensor operation, previous potentiometric schemes would measure a sensor temperature increase resulting from the heat of catalysis. This proposed readout scheme for so-called “pellistor” sensors is expected to improve the measurement performance while providing a simpler implementation than previous systems.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"1 1","pages":"1212-1215"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85859159","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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