Pub Date : 2012-12-13DOI: 10.1109/FIIW.2012.6378330
James A. Smith, D. Kotter, Steven L. Garrett, R. Ali
To be able to evolve fuel and structural microstructure within a nuclear power reactor in an engineered manner, an effective extreme environment sensor must exist. The development of sensor technology for nondestructive and nonintrusive measurements in harsh environments is a very active field. However most of the effort has been in adapting existing sensing technology to meet the harsh environmental requirements. A different approach is being presented. The fundamental question that we are trying to answer is how do we take advantage of the harsh environment and maintain synergy between the sensor and the environment. This paper will discuss the synergistic sensor being developed that takes advantage of harsh environments.
{"title":"Sensors synergistic with nature for in-pile nuclear reactor measurements","authors":"James A. Smith, D. Kotter, Steven L. Garrett, R. Ali","doi":"10.1109/FIIW.2012.6378330","DOIUrl":"https://doi.org/10.1109/FIIW.2012.6378330","url":null,"abstract":"To be able to evolve fuel and structural microstructure within a nuclear power reactor in an engineered manner, an effective extreme environment sensor must exist. The development of sensor technology for nondestructive and nonintrusive measurements in harsh environments is a very active field. However most of the effort has been in adapting existing sensing technology to meet the harsh environmental requirements. A different approach is being presented. The fundamental question that we are trying to answer is how do we take advantage of the harsh environment and maintain synergy between the sensor and the environment. This paper will discuss the synergistic sensor being developed that takes advantage of harsh environments.","PeriodicalId":170653,"journal":{"name":"2012 Future of Instrumentation International Workshop (FIIW) Proceedings","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133918061","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}
Pub Date : 2012-12-13DOI: 10.1109/FIIW.2012.6378349
P. Datskos, N. Lavrik, J. Tobin, L. T. Bowland
We describe the design, fabrication and characterization of simple micromechanical structures that are capable of sensing static electric time varying electromagnetic fields. Time varying electric field sensing is usually achieved using an electromagnetic antenna and a receiver. However, these antenna-based approaches do not exhibit high sensitivity over a broad frequency (or wavelength) range. An important aspect of the present work is that, in contrast to traditional antennas, the dimensions of these micromechanical oscillators can be much smaller than the wavelength of the electromagnetic wave. We characterized the fabricated micromechanical oscillators by measuring their responses to time varying electric and electromagnetic fields.
{"title":"Using micro-electro-mechanical systems (MEMS) as small antennas","authors":"P. Datskos, N. Lavrik, J. Tobin, L. T. Bowland","doi":"10.1109/FIIW.2012.6378349","DOIUrl":"https://doi.org/10.1109/FIIW.2012.6378349","url":null,"abstract":"We describe the design, fabrication and characterization of simple micromechanical structures that are capable of sensing static electric time varying electromagnetic fields. Time varying electric field sensing is usually achieved using an electromagnetic antenna and a receiver. However, these antenna-based approaches do not exhibit high sensitivity over a broad frequency (or wavelength) range. An important aspect of the present work is that, in contrast to traditional antennas, the dimensions of these micromechanical oscillators can be much smaller than the wavelength of the electromagnetic wave. We characterized the fabricated micromechanical oscillators by measuring their responses to time varying electric and electromagnetic fields.","PeriodicalId":170653,"journal":{"name":"2012 Future of Instrumentation International Workshop (FIIW) Proceedings","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115784069","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}
Pub Date : 2012-12-13DOI: 10.1109/FIIW.2012.6378350
P. Ramuhalli, J. Coble, R. Meyer, Leonard J. Bond
There is growing interest in longer-term operation of the current US nuclear power plant (NPP) fleet. This paper presents an overview of prognostic health management (PHM) technologies that could play a role in the safe and effective operation of nuclear power plants during extended life. A case study in prognostics for materials degradation assessment, using laboratory-scale measurements, is briefly discussed, and technical gaps that need to be addressed prior to PHM system deployment for nuclear power life extension are presented.
{"title":"Prognostics health management and life beyond 60 for nuclear power plants","authors":"P. Ramuhalli, J. Coble, R. Meyer, Leonard J. Bond","doi":"10.1109/FIIW.2012.6378350","DOIUrl":"https://doi.org/10.1109/FIIW.2012.6378350","url":null,"abstract":"There is growing interest in longer-term operation of the current US nuclear power plant (NPP) fleet. This paper presents an overview of prognostic health management (PHM) technologies that could play a role in the safe and effective operation of nuclear power plants during extended life. A case study in prognostics for materials degradation assessment, using laboratory-scale measurements, is briefly discussed, and technical gaps that need to be addressed prior to PHM system deployment for nuclear power life extension are presented.","PeriodicalId":170653,"journal":{"name":"2012 Future of Instrumentation International Workshop (FIIW) Proceedings","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116527277","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}
Pub Date : 2012-12-13DOI: 10.1109/FIIW.2012.6378346
J. Reed, C. A. Gonzalez
Power Fingerprinting (PFP) provides an innovative, powerful integrity assessment tool that is particularly well suited for critical embedded systems, including resource-constrained and legacy platforms such as those still being used by energy providers. One of the main applications of PFP is cyber security monitoring of critical systems and the detection of malicious intrusions, tampering, and attacks. Among the advantages of PFP over other intrusion detection tools, is the ability to detect zero-day and targeted attacks while introducing almost negligible overhead on the system being monitored. In addition, it can be applied independent of the system hardware, operating system, and software application. For these reasons, PFP has the potential to play a key role in Smart Grid cyber security by protecting platforms and systems that are not covered by traditional security approaches, such as antivirus systems.
Power Fingerprinting (PFP)提供了一种创新的、功能强大的完整性评估工具，特别适合于关键的嵌入式系统，包括资源受限的和传统的平台，比如那些仍在被能源供应商使用的平台。PFP的主要应用之一是关键系统的网络安全监控以及恶意入侵、篡改和攻击的检测。与其他入侵检测工具相比，PFP的优势之一是能够检测零日攻击和目标攻击，同时对被监视的系统引入几乎可以忽略不计的开销。此外，它可以独立于系统硬件、操作系统和软件应用程序进行应用。由于这些原因，PFP有可能在智能电网网络安全中发挥关键作用，保护传统安全方法(如防病毒系统)无法覆盖的平台和系统。
{"title":"Enhancing Smart Grid cyber security using power fingerprinting: Integrity assessment and intrusion detection","authors":"J. Reed, C. A. Gonzalez","doi":"10.1109/FIIW.2012.6378346","DOIUrl":"https://doi.org/10.1109/FIIW.2012.6378346","url":null,"abstract":"Power Fingerprinting (PFP) provides an innovative, powerful integrity assessment tool that is particularly well suited for critical embedded systems, including resource-constrained and legacy platforms such as those still being used by energy providers. One of the main applications of PFP is cyber security monitoring of critical systems and the detection of malicious intrusions, tampering, and attacks. Among the advantages of PFP over other intrusion detection tools, is the ability to detect zero-day and targeted attacks while introducing almost negligible overhead on the system being monitored. In addition, it can be applied independent of the system hardware, operating system, and software application. For these reasons, PFP has the potential to play a key role in Smart Grid cyber security by protecting platforms and systems that are not covered by traditional security approaches, such as antivirus systems.","PeriodicalId":170653,"journal":{"name":"2012 Future of Instrumentation International Workshop (FIIW) Proceedings","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116630006","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}
Pub Date : 2012-12-13DOI: 10.1109/FIIW.2012.6378341
Hongcheng Wang, I. Fedchenia, S. Shishkin, A. Finn, L. Smith, M. Colket
We present a new image reconstruction method for Electrical Capacitance Tomography (ECT) by exploiting the sparsity of reconstructed images. ECT image reconstruction is generally ill-posed because the number of measurements is small whereas the image dimensions are large. Inspired by recent developments in Compressive Sensing (CS), given the sparsity of the signal (image), our idea is to apply an efficient and stable algorithm through L1 regularization to recover the sparse signal with sufficient measurements that have cardinality comparable to the sparsity of the signal. In this paper, we apply an efficient GPSR (Gradient Projection for Sparse Reconstruction) algorithm to reconstruct the sparse signal under DCT basis (GPSR-DCT). Our results on real data show that the proposed GPSR-DCT algorithm can better preserve object boundary and shape, as compared to a representative state-of-the-art ECT image reconstruction algorithm, Projected Landweber Iteration with Linear Back Projection initialization (LBP-PLI).
利用重构图像的稀疏性，提出了一种新的电容层析成像(ECT)图像重构方法。由于测量次数少而图像尺寸大，ECT图像重建通常是病态的。受压缩感知(CS)最新发展的启发，考虑到信号(图像)的稀疏性，我们的想法是通过L1正则化应用一种高效且稳定的算法，通过具有与信号稀疏性相当的基数的足够测量值来恢复稀疏信号。本文采用一种高效的GPSR (Gradient Projection for Sparse Reconstruction)算法在DCT基础下对稀疏信号进行重构(GPSR-DCT)。实验结果表明，与目前最具代表性的ECT图像重建算法LBP-PLI(投影Landweber迭代与线性反向投影初始化)相比，本文提出的GPSR-DCT算法能更好地保留物体的边界和形状。
{"title":"Image reconstruction for electrical capacitance tomography exploiting sparsity","authors":"Hongcheng Wang, I. Fedchenia, S. Shishkin, A. Finn, L. Smith, M. Colket","doi":"10.1109/FIIW.2012.6378341","DOIUrl":"https://doi.org/10.1109/FIIW.2012.6378341","url":null,"abstract":"We present a new image reconstruction method for Electrical Capacitance Tomography (ECT) by exploiting the sparsity of reconstructed images. ECT image reconstruction is generally ill-posed because the number of measurements is small whereas the image dimensions are large. Inspired by recent developments in Compressive Sensing (CS), given the sparsity of the signal (image), our idea is to apply an efficient and stable algorithm through L1 regularization to recover the sparse signal with sufficient measurements that have cardinality comparable to the sparsity of the signal. In this paper, we apply an efficient GPSR (Gradient Projection for Sparse Reconstruction) algorithm to reconstruct the sparse signal under DCT basis (GPSR-DCT). Our results on real data show that the proposed GPSR-DCT algorithm can better preserve object boundary and shape, as compared to a representative state-of-the-art ECT image reconstruction algorithm, Projected Landweber Iteration with Linear Back Projection initialization (LBP-PLI).","PeriodicalId":170653,"journal":{"name":"2012 Future of Instrumentation International Workshop (FIIW) Proceedings","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129391281","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}
Pub Date : 2012-12-13DOI: 10.1109/FIIW.2012.6378340
P. Markham, Ye Zhang, Yilu Liu, J. Stovall, M. Young, J. Gracia, T. King
Synchronized phasor measurements can reveal important insights about the health and stability of the power grid in near-real time. Unfortunately, the high cost associated with the installation of phasor measurement units (PMUs) has limited their adoption in the electric utility industry. The Frequency Monitoring Network (FNET) was created to provide low-cost, high-accuracy frequency and voltage phase angle measurements from the 120-V distribution level. Using widely-deployed Frequency Disturbance Recorders, FNET provides a system-wide view of the grid that is unavailable anywhere else. This paper describes the physical structure of the FNET system, as well applications that make use of its data.
{"title":"Wide-area power system frequency measurement applications","authors":"P. Markham, Ye Zhang, Yilu Liu, J. Stovall, M. Young, J. Gracia, T. King","doi":"10.1109/FIIW.2012.6378340","DOIUrl":"https://doi.org/10.1109/FIIW.2012.6378340","url":null,"abstract":"Synchronized phasor measurements can reveal important insights about the health and stability of the power grid in near-real time. Unfortunately, the high cost associated with the installation of phasor measurement units (PMUs) has limited their adoption in the electric utility industry. The Frequency Monitoring Network (FNET) was created to provide low-cost, high-accuracy frequency and voltage phase angle measurements from the 120-V distribution level. Using widely-deployed Frequency Disturbance Recorders, FNET provides a system-wide view of the grid that is unavailable anywhere else. This paper describes the physical structure of the FNET system, as well applications that make use of its data.","PeriodicalId":170653,"journal":{"name":"2012 Future of Instrumentation International Workshop (FIIW) Proceedings","volume":"446 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132579140","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}
Pub Date : 2012-10-01DOI: 10.1109/FIIW.2012.6378331
A. Snyder, E. Gunther, S. Griffin
The promises of smart grid for the average consumer will require both voluntary, non-technical changes in their consumption behavior, or that and the installation of some technology in their home that enables their desire to participate to be enacted on their behalf. For the latter case, the reality of a retail friendly experience is not yet realized. There are challenges beyond what for many is a daunting part of their home life...becoming a network administrator for their internet service and pool of computing devices. The installation, commissioning and maintenance of a sensor network to obtain actionable data blends electrical knowledge, business skills and somewhat advanced information technology capabilities to make this a reality. This paper explores the practical challenges of installing, commissioning and maintaining an in-home sensor network.
{"title":"The smart grid homeowner: An IT guru?","authors":"A. Snyder, E. Gunther, S. Griffin","doi":"10.1109/FIIW.2012.6378331","DOIUrl":"https://doi.org/10.1109/FIIW.2012.6378331","url":null,"abstract":"The promises of smart grid for the average consumer will require both voluntary, non-technical changes in their consumption behavior, or that and the installation of some technology in their home that enables their desire to participate to be enacted on their behalf. For the latter case, the reality of a retail friendly experience is not yet realized. There are challenges beyond what for many is a daunting part of their home life...becoming a network administrator for their internet service and pool of computing devices. The installation, commissioning and maintenance of a sensor network to obtain actionable data blends electrical knowledge, business skills and somewhat advanced information technology capabilities to make this a reality. This paper explores the practical challenges of installing, commissioning and maintaining an in-home sensor network.","PeriodicalId":170653,"journal":{"name":"2012 Future of Instrumentation International Workshop (FIIW) Proceedings","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130034270","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：