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2007 IEEE Sensors Applications Symposium最新文献

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Investigation of Source Detection Algorithms for Gross Counting Portal Monitors 总计数门户监控源检测算法研究
2007 IEEE Sensors Applications Symposium Pub Date : 2007-02-01 DOI: 10.1109/SAS.2007.374368
C. Wahl, D. Alderson, L. Pibida
{"title":"Investigation of Source Detection Algorithms for Gross Counting Portal Monitors","authors":"C. Wahl, D. Alderson, L. Pibida","doi":"10.1109/SAS.2007.374368","DOIUrl":"https://doi.org/10.1109/SAS.2007.374368","url":null,"abstract":"In recent years, heightened security concerns have prompted increased interest in radiation portal monitors, instruments capable of detecting, and in some cases identifying, gamma-ray and neutron-emitting radioactive material passing through them. Along with efficient and reliable physical detectors, such monitors need software capable of analyzing the resulting signals in order to effectively catch weak radioactive sources. The software should be able to distinguish between the sometimes subtle signals due to weak sources and the varying background. After investigating several possible source-detection algorithms, a program has been developed to locate signals from weakly radioactive sources in real time. By including corrections for background suppression due to trucks shielding the detector and changing background levels, this program is capable of detecting significantly weaker sources than current software. The limitations of this method will also be discussed.","PeriodicalId":137779,"journal":{"name":"2007 IEEE Sensors Applications Symposium","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115442512","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
Hall Effect Transducers Used in the Parameter Extraction of Captors Having Elastic Cantilever Beams 用于弹性悬臂梁捕获器参数提取的霍尔效应传感器
2007 IEEE Sensors Applications Symposium Pub Date : 2007-02-01 DOI: 10.1109/SAS.2007.374391
l.G. Tarnovan, B. Tebrean, T. E. Crisan
{"title":"Hall Effect Transducers Used in the Parameter Extraction of Captors Having Elastic Cantilever Beams","authors":"l.G. Tarnovan, B. Tebrean, T. E. Crisan","doi":"10.1109/SAS.2007.374391","DOIUrl":"https://doi.org/10.1109/SAS.2007.374391","url":null,"abstract":"The purpose of this paper is to analyze the possibility of using the Hall effect transducers for the study of the response of the elastic systems to shocks, in particular for the cantilever beam type mechanical systems. The experimental results which are presented in the paper, reveal the fact that this transducers allow both the static and dynamic analysis of the phenomena presented above. The analyze will be concentrated on the study of the response conferred by the systems with distributed mass and elasticity at mechanical shocks generated by the probes which have the different masses and are from different materials. The paper will also present the error factors such as the influence of the probe materials, positioning errors, working angles, etc.","PeriodicalId":137779,"journal":{"name":"2007 IEEE Sensors Applications Symposium","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115327694","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
Power Management in Networked Sensor Radios A Network Energy Model 网络传感器无线电的电源管理——网络能量模型
2007 IEEE Sensors Applications Symposium Pub Date : 2007-02-01 DOI: 10.1109/SAS.2007.374382
Q. Shi
{"title":"Power Management in Networked Sensor Radios A Network Energy Model","authors":"Q. Shi","doi":"10.1109/SAS.2007.374382","DOIUrl":"https://doi.org/10.1109/SAS.2007.374382","url":null,"abstract":"A network radio energy model is presented to estimate radio energy consumptions and operation life times in multi-hop wireless ad-hoc sensor radio networks. The model is shown to be a function of radio operating duty cycles and network traffic loads. Numerical results are then given showing examples of radio energy consumptions and operation life times under various traffic conditions and radio operating cycles. It is seen that when employing a power-saving mode such as sleeping during the idling times of a sensor radio, significant energy can be saved so that the sensor operating life can be prolonged. Using the model, system trades can be carried out by users in system planning and power management for sensor network operations, so as to achieve optimized energy-efficient solution and to provide range of system parameters that are operable under various operating conditions.","PeriodicalId":137779,"journal":{"name":"2007 IEEE Sensors Applications Symposium","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116936869","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: 24
Capacitive Transduction in Partially Disordered Systems: Application to LC-Based Biosensors 部分无序系统中的电容转导:在lc基生物传感器中的应用
2007 IEEE Sensors Applications Symposium Pub Date : 2007-02-01 DOI: 10.1109/SAS.2007.374358
A. Abu-Abed, R. Lindquist
{"title":"Capacitive Transduction in Partially Disordered Systems: Application to LC-Based Biosensors","authors":"A. Abu-Abed, R. Lindquist","doi":"10.1109/SAS.2007.374358","DOIUrl":"https://doi.org/10.1109/SAS.2007.374358","url":null,"abstract":"Capacitive transduction is investigated for use in a liquid crystal (LC) based sensors with potential applications to biological systems. The theory for tracking the average molecular orientation of a partially disordered liquid crystal film via capacitive transduction in an inhomogeneous, anisotropic media is presented. The sensitivity for the sensor at different alignment is discussed. Both the experimental and calculated values for fringing capacitance of a selected structure are presented.","PeriodicalId":137779,"journal":{"name":"2007 IEEE Sensors Applications Symposium","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124713419","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 Survey of Authentication Mechanisms: Authentication for Ad-Hoc Wireless Sensor Networks 认证机制综述:Ad-Hoc无线传感器网络的认证
2007 IEEE Sensors Applications Symposium Pub Date : 2007-02-01 DOI: 10.1109/SAS.2007.374370
P. Boyle, T. Newe
{"title":"A Survey of Authentication Mechanisms: Authentication for Ad-Hoc Wireless Sensor Networks","authors":"P. Boyle, T. Newe","doi":"10.1109/SAS.2007.374370","DOIUrl":"https://doi.org/10.1109/SAS.2007.374370","url":null,"abstract":"Many applications of wireless sensor networks, such as homeland security and commercial applications collect and disseminate sensitive and important information. In order for these applications to operate successfully, it is necessary to maintain the privacy and security of transmitted data. What remains undefined is an agreeable and most effective way of securing the information. This paper considers current mechanisms of authentication used to achieve security. When a node of a network can be verified as being a valid member node of the network, by some security mechanism, this is known as authentication. This node may then send and receive trustworthy messages across the network, appended with a message authentication code that only other valid nodes, holding a shared secret, may access. A comparison table is presented, illustrating various properties held by these authentications protocols. This is beneficial to designers wishing to implement the most cost effective and appropriate protocol for the intended application, as the desirable characteristics, both simulation based and implementation based, are easily identifiable.","PeriodicalId":137779,"journal":{"name":"2007 IEEE Sensors Applications Symposium","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129592661","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
Fiber Bragg Grating Sensors for Acoustic Emission and Transmission Detection Applied to Robotic NDE in Structural Health Monitoring 光纤光栅声发射与透射传感器在机器人无损检测中的应用
2007 IEEE Sensors Applications Symposium Pub Date : 2007-02-01 DOI: 10.1109/SAS.2007.374388
G. Wild, S. Hinckley
{"title":"Fiber Bragg Grating Sensors for Acoustic Emission and Transmission Detection Applied to Robotic NDE in Structural Health Monitoring","authors":"G. Wild, S. Hinckley","doi":"10.1109/SAS.2007.374388","DOIUrl":"https://doi.org/10.1109/SAS.2007.374388","url":null,"abstract":"Distributed acoustic emission sensors are used in structural health monitoring (SHM) for the detection of impacts and/or strain, in real time. Secondary damage may result from the initial impact or strain. This damage may include surface pitting, erosion, or cracking. This type of damage may not be detectable by the SHM system, specifically in passive fiber optic based sensing systems. The integration of non-destructive evaluation (NDE) by robots into SHM enables the detection and monitoring of a wider variety of damage. Communicating via acoustic transmissions represents a wireless communications method for use by NDE inspection robots to communicate with an integrated SHM system that does not require any additional hardware, as piezoelectric transducers are commonly used in the NDE of materials. In this paper, we demonstrate the detection of both acoustic emissions and transmissions with a fiber Bragg grating (FBG) sensor. The acoustic communications channel comprises of a piezoelectric transmitter, an aluminum panel as the transmission medium, and a FBG receiver. Phase Shift Keying was used to encode the acoustic transmissions. Results for the frequency and transient response of the channel are presented.","PeriodicalId":137779,"journal":{"name":"2007 IEEE Sensors Applications Symposium","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129181490","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: 22
Performance of Semantic-dependent Two-tier Gossip Mechanisms 语义依赖的两层八卦机制的性能
2007 IEEE Sensors Applications Symposium Pub Date : 2007-02-01 DOI: 10.1109/SAS.2007.374383
S. Yam, M. Wong
{"title":"Performance of Semantic-dependent Two-tier Gossip Mechanisms","authors":"S. Yam, M. Wong","doi":"10.1109/SAS.2007.374383","DOIUrl":"https://doi.org/10.1109/SAS.2007.374383","url":null,"abstract":"The efficiency of locating heat sources in a sensor network with the novel semantic-dependent two-tier gossip mechanisms is studied. Two-tier gossip mechanisms are probabilistic paradigms which can switch from one gossipee-selection scheme to another one, typically one that tends to select more nearby nodes. An upper time bound for two-tier gossip mechanism is presented. When semantic-dependent two-tier gossip mechanisms are employed, the selection of communication peers depends on information, for example temperature, obtained from the application layer. Distance from the heat source(s) can be estimated with the help of the local temperature detected, and the two-tier technique is also employed for further improvement. With uniform gossip as the benchmark, an overall improvement in both time and the communication distances required is observed.","PeriodicalId":137779,"journal":{"name":"2007 IEEE Sensors Applications Symposium","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125730046","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
Capacitance to Digital Converter 电容-数字转换器
2007 IEEE Sensors Applications Symposium Pub Date : 2007-02-01 DOI: 10.1109/SAS.2007.374409
R. Nojdelov, S. Nihtianov, Edo van Dorne
{"title":"Capacitance to Digital Converter","authors":"R. Nojdelov, S. Nihtianov, Edo van Dorne","doi":"10.1109/SAS.2007.374409","DOIUrl":"https://doi.org/10.1109/SAS.2007.374409","url":null,"abstract":"This paper presents a capacitance to digital converter (CDC) with a fast serial digital output. The CDC is intended to be used as a flexible solution for interfacing multiple capacitive sensors with maximum value lnF. A cable capacitance of up to InF can be tolerated. Two different modes of measurement are available -a normal mode and a fast mode. The conversion time is 39 mus and 64 mus for the fast and the normal mode, respectively. The resolution in normal mode, with cable capacitance less than 400pF, is better than 14 bits. A special multi-slope A-to-D conversion is used, which at the beginning and at the end of the conversion process transforms itself into sigma/delta conversion. The interface is realized on a PCB with a Single Euro-board format. Six sensors can be interfaced in programmable sequence. The power consumption is less than 1W.","PeriodicalId":137779,"journal":{"name":"2007 IEEE Sensors Applications Symposium","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125222980","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
Controller Area Network for In-Vehicle Law Enforcement Applications 车载执法应用控制器局域网
2007 IEEE Sensors Applications Symposium Pub Date : 2007-02-01 DOI: 10.1109/SAS.2007.374369
Anthony Marino, John Schmalzel
{"title":"Controller Area Network for In-Vehicle Law Enforcement Applications","authors":"Anthony Marino, John Schmalzel","doi":"10.1109/SAS.2007.374369","DOIUrl":"https://doi.org/10.1109/SAS.2007.374369","url":null,"abstract":"Based on requirements for an advanced law enforcement vehicle demonstrator, in-vehicle controller area network (CAN) architecture has been implemented. In an effort to reduce the amount of point-to-point wiring in law enforcement vehicles and centralize communications between devices, CAN is suggested as a means to serialize data communications within the vehicle environment. The benefits of this CAN net-centric approach to in-vehicle law enforcement applications over traditional point-to-point schemes will offer increased flexibility and expandability for future technology insertions and provide the user access to information from a set of interoperable CAN enabled sources.","PeriodicalId":137779,"journal":{"name":"2007 IEEE Sensors Applications Symposium","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133445360","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: 12
Nondestructive Sensor Applications for Remote Sensing of Multiphase Fluid Flow Measurements 无损传感器在多相流体流量遥感测量中的应用
2007 IEEE Sensors Applications Symposium Pub Date : 2007-02-01 DOI: 10.1109/SAS.2007.374386
Y. F. Basrawi
{"title":"Nondestructive Sensor Applications for Remote Sensing of Multiphase Fluid Flow Measurements","authors":"Y. F. Basrawi","doi":"10.1109/SAS.2007.374386","DOIUrl":"https://doi.org/10.1109/SAS.2007.374386","url":null,"abstract":"The paper talks about the current technology and operations of the various multiphase flow sensing and measurement devices; their applications to down stream operations as well as the possible application to royalty and custody measurements of crude and hydrocarbon products. It highlights current research, field test studies and viability of such devices using nano technology for better precision and higher accuracy in the measurement of volumetric through puts for exports and domestic consumption.","PeriodicalId":137779,"journal":{"name":"2007 IEEE Sensors Applications Symposium","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123695172","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
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