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An accelerometer digital front end for efficient seismic event detection support in a wireless sensor node 一种支持无线传感器节点高效地震事件检测的加速度计数字前端
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6984984
F. Federici, R. Alesii, A. Colarieti, F. Graziosi, M. Faccio
{"title":"An accelerometer digital front end for efficient seismic event detection support in a wireless sensor node","authors":"F. Federici, R. Alesii, A. Colarieti, F. Graziosi, M. Faccio","doi":"10.1109/ICSENS.2014.6984984","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6984984","url":null,"abstract":"Rapid detection of earthquake-induced acceleration in civil structures is a key tool for the implementation of early warning strategies. This work illustrates the development of a digital front end able to effectively support seismic data analysis and specifically designed for integration in MEMS accelerometers. Although there are some examples of commercially available sensors integrating processing blocks, few are able to satisfy seismic monitoring applications requirements. Proposed front end is based on the Walsh transform and it is specifically designed to support efficient seismic event detection in a battery-powered wireless sensor node. Hardware architecture of proposed block is described and its capabilities are detailed. Detection accuracy is evaluated by means of real world structural data analysis.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"61 1","pages":"265-268"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89344908","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
Incident light angle detection technique using polarization pixels 基于偏振像素的入射光角检测技术
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985468
Vigil Varghese, Shoushun Chen
{"title":"Incident light angle detection technique using polarization pixels","authors":"Vigil Varghese, Shoushun Chen","doi":"10.1109/ICSENS.2014.6985468","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985468","url":null,"abstract":"In this paper we present the design and analysis of a CMOS image sensor pixel capable of detecting the angle of incident light. Determining the angle is of paramount importance in reconstructing the 3D information of the imaged scene. These pixels achieve this by including polarization gratings on top of the photodiodes in each pixel. Three different pixels, each with different grating orientation produce enough information to determine the local incidence angle. Because of the symmetric nature of the response for positive and negative angles, another set of pixels, called the linear quadrature pixel cluster has been included to break the symmetry and provide greater angle resolution.We present the simulation results as well as the design, which is targeted towards GlobalFoundries 65 nm CMOS mixed-signal process.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"37 1","pages":"2167-2170"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84086634","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
Wearable wireless biophotonic and biopotential sensors for canine health monitoring 用于犬类健康监测的可穿戴无线生物光子和生物电位传感器
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985477
R. Brugarolas, J. Dieffenderfer, Katherine Walker, Ashley Wagner, B. Sherman, David L. Roberts, A. Bozkurt
{"title":"Wearable wireless biophotonic and biopotential sensors for canine health monitoring","authors":"R. Brugarolas, J. Dieffenderfer, Katherine Walker, Ashley Wagner, B. Sherman, David L. Roberts, A. Bozkurt","doi":"10.1109/ICSENS.2014.6985477","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985477","url":null,"abstract":"There is an increasing interest from dog handlers and veterinarians in the ability to continuously monitor dogs' vital signs (heart rate, heart rate variability and respiration rate) with the aim of identifying physiological correlations to stress and excitement outside laboratory environments. We present our latest efforts towards a novel non-invasive wearable sensor system including photoplethysmogram (PPG) and electrocardiogram (ECG) to remotely and continuously monitor vital signs of animals. To overcome the limitations imposed by the dense hair layer, we investigated the use of pointed style electrodes, traditionally used in training (shock) collars, as passive ECG recording electrodes. We also studied the incorporation of light guides and optical fibers for efficient optical coupling to the skin. The ECG and PPG sensors were interfaced to a system on chip (SoC) with Bluetooth capability for transferring the data to a nearby smartphone or computer for data storage and analysis.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"26 1","pages":"2203-2206"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88066481","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: 34
Molecularly imprinted polypyrrole for the electrochemical detection of sulfadimethoxine: The effect of imprinting parameters 分子印迹聚吡咯电化学检测磺胺二甲氧嘧啶:印迹参数的影响
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985384
E. Mazzotta, A. Turco, C. Malitesta, S. Corvaglia
{"title":"Molecularly imprinted polypyrrole for the electrochemical detection of sulfadimethoxine: The effect of imprinting parameters","authors":"E. Mazzotta, A. Turco, C. Malitesta, S. Corvaglia","doi":"10.1109/ICSENS.2014.6985384","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985384","url":null,"abstract":"A novel, simple and cost-effective electrochemical sensor for sulfadimethoxine (SDM) based on molecularly imprinted overoxidized polypyrrole (PPy) is developed by exploiting an all electrochemical approach both for sensor fabrication and application consisting in molecularly imprinted polymer (MIP) electropolymerization/overoxidation and in SDM amperometric detection. Parameters influencing the imprinting effect are critically evaluated. A key role of the electrolyte used in electropolymerization is demonstrated to influence MIP sensing performances and its morphology, as highlighted by atomic force microscopy (AFM). MIP-template interaction is verified by IR spectroscopy. The effect of different overoxidation conditions in removing template is evaluated by analyzing MIP films before and after the treatment by X-Ray Photoelectron Spectroscopy (XPS) also evidencing the correlation between MIP chemical structure and its rebinding ability. Under the selected optimal conditions, MIP based sensor shows satisfactory performance in terms of sensitivity, limit of detection, reproducibility and selectivity.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"19 1","pages":"1835-1838"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88154849","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
A rotational capacitive micromachined ultrasonic transducer (RCMUT) 一种旋转电容式微机械超声换能器(RCMUT)
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985150
Donghwan Kim, M. Kuntzman, N. Hall
{"title":"A rotational capacitive micromachined ultrasonic transducer (RCMUT)","authors":"Donghwan Kim, M. Kuntzman, N. Hall","doi":"10.1109/ICSENS.2014.6985150","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985150","url":null,"abstract":"An unconventional acoustic sensor is presented with audio and ultrasound applications. The structure is a synthesis of capacitive micromachined ultrasonic transducer (CMUT) technology and biologically inspired microphones which use rotational or rocking modes of vibration to directly sense acoustic pressure gradient. A pivoting beam structure is sealed under vacuum, and the top surface of the beam is driven into motion by external pressure gradients. Vvacuum sealing eliminates the introduction of excessive damping, stiffness, and thermal mechanical noise into the system. Motion of the beam is transduced capacitively at each end of the beam using gap-closing parallel plate electrodes. Surface-micromachined prototypes are presented that are 470 μm × 718 μm in size and exhibit a fundamental rocking resonance at 480 kHz, and a second flapping mode at 630 kHz, for which both ends of the beam vibrate in phase.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"108 1","pages":"915-917"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86715426","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
Nanocrystalline p-TiO2 based MIS device for efficient acetone detection 基于纳米晶p-TiO2的高效丙酮检测MIS装置
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6984991
B. Bhowmik, A. Hazra, K. Dutta, P. Bhattacharyya
{"title":"Nanocrystalline p-TiO2 based MIS device for efficient acetone detection","authors":"B. Bhowmik, A. Hazra, K. Dutta, P. Bhattacharyya","doi":"10.1109/ICSENS.2014.6984991","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6984991","url":null,"abstract":"Present study investigated, the acetone sensing properties of Pd/TiO2/Si Metal Insulator Semiconductor (MIS) devices with nanocrystalline p-TiO2, with crystalline size ~8 nm as the sensing layer. p-TiO2 thin film was synthesized using sol-gel method. After details structural characterization by X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM) and electrical characterization by Van Der Pauw method, the MIS structure was fabricated employing drop coated p-Si substrate. Pd was deposited, on TiO2, as noble metal catalytic electrode while Al was taken as ohmic contact electrode from Si. The sensor study was carried out at relatively lower operating temperatures (50-200°C) for the acetone concentrations of 0.5-50ppm. It was found that MIS devices showed fast response/recovery with appreciable response magnitude in the entire temperature range for all the concentration. The faster response/recovery of MIS devices has been analyzed through an electrical equivalent model including the effect of barrier height between grain boundaries (GBs) and hole trapping at GBs interfaces.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"4 1","pages":"293-296"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87068041","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
A post processing approach for manufacturing high-density stretchable sensor arrays 制造高密度可拉伸传感器阵列的后处理方法
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985350
A. Savov, S. K. Pakazad, Shivani Joshi, V. Henneken, R. Dekker
{"title":"A post processing approach for manufacturing high-density stretchable sensor arrays","authors":"A. Savov, S. K. Pakazad, Shivani Joshi, V. Henneken, R. Dekker","doi":"10.1109/ICSENS.2014.6985350","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985350","url":null,"abstract":"A method for fabricating stretchable sensor arrays consisting of rigid islands attached to a stretchable membrane is proposed. The method utilizes a CMOS compatible post processing approach, where the sensor elements and the underlying electronics are fabricated first, followed by a sequence of etching steps and polymer spin coating that result in the formation of the stretchable array. The elements of the array are connected by free-standing interconnects that are prefabricated in the metal stack of the CMOS. The presented fabrication results demonstrate the feasibility of manufacturing of fine-pitch, high density arrays where the interconnects are completely separated from the stretchable substrate allowing for high stretchability.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"17 1","pages":"1703-1705"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85748525","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: 9
Development of a novel isoniazid-membrane-field-effect transistor 新型异烟肼膜场效应晶体管的研制
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985198
S. Merzouk, Michael V. Lee, N. Jaffrezic‐Renault, A. Errachid, N. Zine, J. Bausells, C. Viňas, F. Teixidor
{"title":"Development of a novel isoniazid-membrane-field-effect transistor","authors":"S. Merzouk, Michael V. Lee, N. Jaffrezic‐Renault, A. Errachid, N. Zine, J. Bausells, C. Viňas, F. Teixidor","doi":"10.1109/ICSENS.2014.6985198","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985198","url":null,"abstract":"The Isoniazid (INH) sensing Membrane-Sensitive Field-Effect Transistor (MEMFET) device was developed. The optimized INH membrane was composed from a complex mixture of 7% (w/w) ion pair [H<sub>3</sub>-INH][Co(C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)<sub>2</sub>]<sub>3</sub>, 30% (w/w) polymer (polyvinyl chloride) (PVC), and 63% (w/w) of plasticizing agent o-nitrophenyloctyl ether (NPOE) which was dissolved in tetrahydrofuran (THF) solution. The potentiometric response was evaluated. The device exhibited excellent selectivity and a linear response over the concentration range from 3×10<sup>-6</sup> M to 1×10<sup>-1</sup> M with a slope of 55 ± 0.2 mV/decade. The INHMEMFETs are suitable for use with aqueous solutions of pH 9.5-5 and were found insensitive to the other antituberculosis (Sulfanilamide, Rifampicin, Ethambutol and pyrazinecarboxamide).","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"49 1","pages":"1104-1106"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80948086","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
Detecting trace amount of water in crude oil with capacitance sensors 用电容式传感器检测原油中的微量水
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985433
T. Tang, Yee Ling Lim, M. Z. Aslam
{"title":"Detecting trace amount of water in crude oil with capacitance sensors","authors":"T. Tang, Yee Ling Lim, M. Z. Aslam","doi":"10.1109/ICSENS.2014.6985433","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985433","url":null,"abstract":"A capacitive sensing system for trace amount of water content in crude oil is proposed. The capacitance sensor comprises a pair of copper electrodes wrapped around a tube with a 12mm diameter. The interface circuit is based on capacitance to phase angle conversion. A combination of differential sensing and low pass filtering techniques was further introduced to reduce the system sensitivity to jitter and amplitude variation in the main oscillator. Experiment results with Malaysia Dulang oilfield samples show that the proposed system has a sensitivity of 1.5°/fF and a detection range of 50 to 638ppm of water content. The system was able to produce a stable output (regular pulse stream without jitter).","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"1 1","pages":"2030-2033"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89237856","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: 7
Electro-thermal simulation and characterization of vertically aligned CNTs directly grown on a suspended microhoplate for thermal management applications 用于热管理应用的悬浮微板上直接生长的垂直排列碳纳米管的电热模拟和表征
IEEE SENSORS 2014 Proceedings Pub Date : 2014-12-15 DOI: 10.1109/ICSENS.2014.6985127
C. Silvestri, P. Picciafoco, B. Morana, F. Santagata, G. Zhang, P. Sarro
{"title":"Electro-thermal simulation and characterization of vertically aligned CNTs directly grown on a suspended microhoplate for thermal management applications","authors":"C. Silvestri, P. Picciafoco, B. Morana, F. Santagata, G. Zhang, P. Sarro","doi":"10.1109/ICSENS.2014.6985127","DOIUrl":"https://doi.org/10.1109/ICSENS.2014.6985127","url":null,"abstract":"Carbon related material, like carbon nanotubes (CNTs) or graphene have recently attracted significant attention for thermal management applications. The estimation of the thermal properties of nanomaterials, necessary to optimize their employment as heat exchanger material, is still a big challenge. In this paper we present a novel approach to evaluate the thermal performance of vertically aligned CNTs bundle, directly grown on top of a suspended microhotplate. The power consumption of the fabricated device has been recorded in air and in vacuum, so to determine the magnitude of each possible thermal loss path. Moreover, electro-thermal simulations (finite element modelling) have been carried out, to assess our experimental results and to generate a valuable instrument for the design of custom fit geometrical configurations for specific power dissipation constrains. Simulations are in good agreement with the experimental results over the entire temperature range. In particular, for the CNTs bundle sample, a mismatch of 14% and 7% between simulation and measurements is recorded in vacuum and air respectively.","PeriodicalId":13244,"journal":{"name":"IEEE SENSORS 2014 Proceedings","volume":"9 1","pages":"827-830"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89631718","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
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