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2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings最新文献

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Application of open-ended coaxial probes for detection of sand production from petroleum wells 开放式同轴探头在油井出砂检测中的应用
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI: 10.1109/I2MTC.2014.6860828
Steven Hilgedick, Jaswanth N. Vutukury, K. Donnell
{"title":"Application of open-ended coaxial probes for detection of sand production from petroleum wells","authors":"Steven Hilgedick, Jaswanth N. Vutukury, K. Donnell","doi":"10.1109/I2MTC.2014.6860828","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860828","url":null,"abstract":"Microwave nondestructive testing (NDT) has shown success in many industries including aerospace and infrastructure. Recently the potential for applying microwave NDT methods in the petroleum industry, specifically for detection of sand in produced petroleum fluids, was investigated. Flowing sand grains cause erosion of many components in the production system including tubing, piping and associated connections, and fluids-processing equipment. Detection of produced sand is important to planning operations and the application of sand production mitigation techniques. To this end, a simple, cost-effective microwave sensor design has been considered. This paper presents simulation and measurement results for this simplified sensor design for various production scenarios. The results indicate the proposed sensing method is sensitive to the presence of sand and may have the potential to serve as a tool for detection of produced sand in the petroleum industry.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129017311","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
Optimization design for coercivity characteristic of spin valve Giant Magneto Resistance 自旋阀巨磁电阻矫顽力特性的优化设计
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI: 10.1109/I2MTC.2014.6860939
Xi Chen, Z. Qian
{"title":"Optimization design for coercivity characteristic of spin valve Giant Magneto Resistance","authors":"Xi Chen, Z. Qian","doi":"10.1109/I2MTC.2014.6860939","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860939","url":null,"abstract":"With the rapid development and wide application of spin valve Giant Magneto Resistance (GMR) sensors, the improvement of the hysteresis characteristic is urgently required. Since the hysteresis is directly related with the coercivity of the structure of GMR sensor, a novel design method by pinning the end of the free layer is discussed in this paper. The theoretical model is established firstly. And then the numerical simulation is implemented. The effects of pinning shape and angle are all analyzed. Lastly, the principle of optimization design is achieved to improve the coercivity of GMR sensors. This method will be beneficial to reduce the hysteresis. Furthermore, it will also be helpful to improve the accuracy of spin valve GMR sensors.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129142023","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
Sensing and decoding of visual stimuli using commercial Brain Computer Interface technology 利用商用脑机接口技术感知和解码视觉刺激
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI: 10.1109/I2MTC.2014.6860913
K. George, Adrian Iniguez, Hayden Donze
{"title":"Sensing and decoding of visual stimuli using commercial Brain Computer Interface technology","authors":"K. George, Adrian Iniguez, Hayden Donze","doi":"10.1109/I2MTC.2014.6860913","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860913","url":null,"abstract":"This paper presents experiments using Brain Computer Interface technology and artificial neural networks to identify simple images viewed by a human subject. Electro-encephalograph (EEG) data is collected from subjects viewing images made up of 2×2 black and white squares using Matlab software and the commercially available Emotiv Epoc headset. Artificial neural networks (ANNs) are used to map EEG data to a pixel array representing the image the subject is viewing. ANNs emulate a biological brain as an array of interconnected nodes which can be trained to match an arbitrary set of inputs to a given set of outputs. In this way, the neural network can map EEG data to a particular image the subject was viewing, allowing the network to classify new EEG image data from other human subjects.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130597590","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
A measurement application of conditional possibility distributions 条件可能性分布的测量应用
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI: 10.1109/I2MTC.2014.6860801
A. Ferrero, M. Prioli, S. Salicone
{"title":"A measurement application of conditional possibility distributions","authors":"A. Ferrero, M. Prioli, S. Salicone","doi":"10.1109/I2MTC.2014.6860801","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860801","url":null,"abstract":"Conditional probability distributions and Bayes' theorem are an important and powerful tool in measurement, whenever a priori information about the measurand is available. It is well-known that the measurement result and associated uncertainty (a posteriori information) can be used to revise the a priori information and, hopefully, decrease its uncertainty. This tool can be used only if both a priori and a posteriori information can be expressed in terms of a probability distribution. A recent approach to uncertainty evaluation expresses measurement results in terms of Random Fuzzy Variables (RFVs), that is in terms of possibility distributions, instead of probability distributions. This paper proposes an extension of the concept of conditional distributions and Bayes theorem to the possibility distributions, and considers a simple measurement example to prove its validity.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130443639","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
A precise measurement method for the position of telescope's fiber tips 一种精确测量望远镜光纤尖端位置的方法
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI: 10.1109/I2MTC.2014.6860848
M. Feng, Yonggang Gu, C. Zhai
{"title":"A precise measurement method for the position of telescope's fiber tips","authors":"M. Feng, Yonggang Gu, C. Zhai","doi":"10.1109/I2MTC.2014.6860848","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860848","url":null,"abstract":"With the continuous development of multi-object fiber spectroscopic telescope, the integrated number of optical fibers on the focal plane is increasing, and these fibers should precisely align the celestial target when the astronomical observation is performing. Hence, the precise coordinates of the fiber tips are obligatory for tracking the celestial target. If the fiber positioning mechanism wants to accurately control fiber tips on the focal surface of the telescope, the movement trajectories of the fiber tips must be accurately measured in advance, so the fiber position measurement is the crucial problem. Based on the special structure of the LAMOST telescope and the composition of the initial position error, this paper aims at developing a high precision and robust measurement method by using bundle adjustment with a few control points.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127966046","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
Evaluation of transducer configurations for ultrasound cross-correlation flowmeters 超声相互关联流量计换能器配置的评价
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI: 10.1109/I2MTC.2014.6860519
M. Vogt, M. Gevers, T. Musch
{"title":"Evaluation of transducer configurations for ultrasound cross-correlation flowmeters","authors":"M. Vogt, M. Gevers, T. Musch","doi":"10.1109/I2MTC.2014.6860519","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860519","url":null,"abstract":"Ultrasound cross-correlation flowmeters are utilized to measure the flow velocity of liquids or gases in pipes. The basic concept is to measure the time interval needed by the flow for travelling a given distance between two measurement channels, each consisting of a pair of ultrasound transducers. At each channel, ultrasound waves are emitted in a direction perpendicularly to the flow, and phase and amplitude modulations, which are caused by turbulences and naturally occurring speed of sound variations inside the flowing medium, are assessed. In this paper, different configurations of circular and linear ultrasound transducers have been evaluated for flow velocity measurement in small pipes. The specific problem is that the apertures of the utilized ultrasound transducers are relatively large compared to the diameter of the pipe. The crosstalk between the two channels is another problem, especially for ultrasound beams with large opening angles. Experiments have been performed using different setups consisting of an acrylic glass pipe with 8 mm inner diameter and two measurement channels at a distance of 12 mm from each other. Measurements have been performed using circular (8 mm diameter, 2 MHz frequency) and, alternatively, linear transducers (8 mm length, 1 mm width, 1.4 MHz frequency), and a turbine flowmeter has been used as a reference. It will be shown that the normalized covariance function can be used as a measure to assess the performance of the cross-correlation flowmeter and the reliability of flow velocity estimates. Results of measurements obtained with degassed water have shown that in the case of highly homogeneous liquids the best performance of the flowmeter is achieved by using the phase modulation signals for the cross-correlation.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126358612","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
FPGA versus DSP for Wavelet transform based Voltage Sags detection 基于小波变换的电压跌落检测的FPGA与DSP对比
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI: 10.1109/I2MTC.2014.6860822
Ernano Arrais Júnior, V. O. Roda, C. M. S. Neto, R. Ribeiro, F. Costa
{"title":"FPGA versus DSP for Wavelet transform based Voltage Sags detection","authors":"Ernano Arrais Júnior, V. O. Roda, C. M. S. Neto, R. Ribeiro, F. Costa","doi":"10.1109/I2MTC.2014.6860822","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860822","url":null,"abstract":"The detection of disturbances in electrical power systems must be as fast as possible to avoid serious consequences. The occurrence of sags, particularly in Wind Electrical Synchronous Generators, may cause failures or even the destruction of the generator. This paper presents a comparison between a FPGA and a DSP system for Voltage Sags detection. The use of Field Programmable Gate Arrays (FPGAs) and Digital Signal Processor (DSP) to monitor the quality of Electrical Power Systems allows the fast detection of sags and other related electric power disturbances. The developed system used a version of the Wavelet transform, the Redundant Discrete Wavelet Transform (RDWT), for the detection of the sags. For a fast Sag detection, the current and voltage wavelet coefficient energies were used. The results obtained show that both implementations, with FPGA and with DSP are efficient alternatives for the fast SAGs detection and can also be used to other power quality related disturbances monitoring.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123043836","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
Frequency dependent failure region definition for supercapacitors 超级电容器频率相关失效区域定义
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI: 10.1109/I2MTC.2014.6860897
M. Catelani, L. Ciani, M. Marracci, B. Tellini
{"title":"Frequency dependent failure region definition for supercapacitors","authors":"M. Catelani, L. Ciani, M. Marracci, B. Tellini","doi":"10.1109/I2MTC.2014.6860897","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860897","url":null,"abstract":"In this paper a new proposal of failure zone definition for ultracapacitors is discussed. Such regions of failure are suitably defined in the frequency domain. The ultracapacitor behavior and its possible ageing are characterized via an impedance spectroscopy measurement technique. Results of an experimental analysis are reported, and an investigation of the possible performance degradation as well as of the ultracapacitor lifetime reduction is carried out and discussed in comparison with the common industry approach of failure definition.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"634 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123048052","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
Design and characterization of an ultrasonic indoor positioning technique 超声室内定位技术的设计与表征
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI: 10.1109/I2MTC.2014.6861020
A. D. Angelis, A. Moschitta, P. Carbone, M. Calderini, S. Neri, R. Borgna, Manuelo Peppucci
{"title":"Design and characterization of an ultrasonic indoor positioning technique","authors":"A. D. Angelis, A. Moschitta, P. Carbone, M. Calderini, S. Neri, R. Borgna, Manuelo Peppucci","doi":"10.1109/I2MTC.2014.6861020","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6861020","url":null,"abstract":"In this paper, an ultrasonic positioning system is presented and characterized, based on the usage of a portable grid of beacons and of a few fixed anchors. Since the beacon grid can be moved to guarantee line of sight transmissions, the proposed strategy is potentially suitable for accurate positioning of a mobile object in an environment with a complex geometry.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126282395","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
Normalizing transducer signals: An overview of a proposed standard 换能器信号归一化:一项拟议标准的概述
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI: 10.1109/I2MTC.2014.6860817
G. Monte, Zheng Liu, F. Abate, V. Paciello, A. Pietrosanto, Victor Huang
{"title":"Normalizing transducer signals: An overview of a proposed standard","authors":"G. Monte, Zheng Liu, F. Abate, V. Paciello, A. Pietrosanto, Victor Huang","doi":"10.1109/I2MTC.2014.6860817","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860817","url":null,"abstract":"This paper presents an overview of the proposed standard ISO/IEC/IEEE P21451-001 for sensor signals that is currently under development. The IoT, Internet of Things, is a reality. Most of things have sensors embedded without drawing distinction between industrial and consumer products. Things can be easily identified and the protocols that govern the traffic over the nets are well defined. However, what is difficult to define is the information that a thing with sensors should report. Therefore, the objective of this standard is to define a first approach to describe sensor signals, in a way that can be applied to any sensor extracting information from samples. The paper is divided into two main sections. The first one describes the basic algorithms that extract knowledge from samples. The second one shows the internal structure of the working group for normalizing these algorithms and the remaining challenges.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121051082","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: 25
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