2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings最新文献

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Research on the characteristics of internal turbine sensor mounted on underwater high speed moving body 水下高速运动体内装涡轮传感器特性研究
Yong Chen, He-xiang Zhang, Shaojie Ma
{"title":"Research on the characteristics of internal turbine sensor mounted on underwater high speed moving body","authors":"Yong Chen, He-xiang Zhang, Shaojie Ma","doi":"10.1109/I2MTC.2015.7151467","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151467","url":null,"abstract":"The internal turbine mechanism is a new sensor that can be used for independent velocity measurement of underwater high speed moving body. It is a meaningful study when the cavitation flow field around and trajectory changes of the high speed moving body was taken into consideration. The parameterization of turbine mechanism was done at first. Then the surrounding flow field was analyzed and the CFD simulation model was established. The cavitation tunnel experiment was done at speed of 0~10m/s with cavitation number minimum to 0.2. On this basis, an overall analysis of the sensor characteristics was done by CFD simulation results in different situation at speed of 0~100m/s. Compared with sensor characteristics of traditional turbine measuring mechanism, this turbine mechanism has many different sensor characteristics and a wide velocity measurement range of 5m/s~70m/s.","PeriodicalId":424006,"journal":{"name":"2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132297762","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
High-accuracy frequency estimation in compressive sensing-plus-DFT spectral analysis 压缩感知加dft频谱分析中的高精度频率估计
Matteo Bertocco, G. Frigo, C. Narduzzi
{"title":"High-accuracy frequency estimation in compressive sensing-plus-DFT spectral analysis","authors":"Matteo Bertocco, G. Frigo, C. Narduzzi","doi":"10.1109/I2MTC.2015.7151530","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151530","url":null,"abstract":"Accurate measurement of a multisine waveform is a classic spectral analysis problem. Algorithms based on the discrete Fourier transform (DFT) need to deal with spectral leakage, which adversely affects both amplitude estimation accuracy and frequency resolution. Approaches where a parametric signal model is identified can achieve much better frequency resolution, at the price of greater complexity. The class of super-resolution algorithms based on compressive sensing (CS) represents a new non-parametric alternative that allows a significant increase in the density of the frequency grid, although continuous-valued frequency estimates still cannot be obtained. A recently proposed algorithm called continuous basis pursuit (CBP) achieves this goal by formulating a more complex constrained convex optimization problem. In addition to sparsity, linear interpolation of elements from a large finite dictionary is considered among the conditions. Frequency estimation uncertainty is then limited only by signal-to-noise ratio (SNR), but the aproach is rather demanding from the computational viewpoint. In this paper a two-stage frequency estimation approach is presented. The first stage is a CS-based super-resolution algorithm, that provides the initial input to the second stage, where linear interpolation is carried out along the lines of CBP. Integration of the two steps into one effective algorithm requires some careful consideration of algorithm parameters, which is discussed in the following together with results obtained by simulation analysis.","PeriodicalId":424006,"journal":{"name":"2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133232508","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: 6
Control valve position response identification by Matlab 控制阀位置响应的Matlab识别
Leili Esmaeilani, J. Ghaisari, M. Ahmadian, Roya Esmaeilani
{"title":"Control valve position response identification by Matlab","authors":"Leili Esmaeilani, J. Ghaisari, M. Ahmadian, Roya Esmaeilani","doi":"10.1109/I2MTC.2015.7151460","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151460","url":null,"abstract":"Modeling and identification of under operation industrial systems could be considered as the first step before making any efforts in order to design improved controller or identify their characteristics and behaviors. There are two specifications that distinguish modeling of operational industrial systems from modeling of non-operational or laboratory cases. The first one is the limited possible input variation range or in the other word, lack of permission to apply desired inputs to the system in order to perform modeling. The second one is that in most cases the real mechanical model is not available due to system complexity and difficulty of its mechanical parts analysis. Moreover, limited available facilities for data sampling could be added as another barrier. In this paper, a black-box SISO model for a control valve, which is installed on a compressor package, is estimated by Matlab identification GUI. The calculations are performed about the three real datasets which are obtained from the valve position and action in sudden full open conditions. It can be concluded that the 3-poles process model is the most appropriate model from the other available models in this GUI. Also the calculated best fit value was more than 87% after considering two employed datasets as Working and Validation datasets respectively.","PeriodicalId":424006,"journal":{"name":"2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132913933","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
An automated system for Accident Detection 事故检测的自动化系统
Asad Ali, M. Eid
{"title":"An automated system for Accident Detection","authors":"Asad Ali, M. Eid","doi":"10.1109/I2MTC.2015.7151519","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151519","url":null,"abstract":"Major accidents on highways, freeways and local roads can lead to huge social and economic impacts. Minor accidents may be resolved by the passengers themselves and do not require escorting to hospitals whereas major accidents where airbags are deployed require immediate attention of authorities. Automatic Smart Accident Detection (ASAD) is an auto-detection unit system that immediately notifies an Emergency Contact through a text message when an instant change in acceleration, rotation and an impact force in an end of the vehicle is detected by the system, detailing the location and time of the accident. The idea is that as soon as an accident is detected by the system, the authorities should immediately be notified to prevent further car congestion as well as allow the passengers to be escorted to the hospital in a timely fashion. The system involves the use of fuzzy logic as a decision support built into the smartphone application that analyzes the incoming data from the sensors and makes a decision based on a set of rules. The simulated results show a 98.67% accuracy of the system with failures resulting from the “gray regions” of the variable values.","PeriodicalId":424006,"journal":{"name":"2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117349947","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: 26
Low crest factor multitone waveform synthesis with the AC Josephson voltage standard 低波峰因数多音波形合成与交流约瑟夫森电压标准
K. Zhou, J. Qu, Xianying Dong
{"title":"Low crest factor multitone waveform synthesis with the AC Josephson voltage standard","authors":"K. Zhou, J. Qu, Xianying Dong","doi":"10.1109/I2MTC.2015.7151328","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151328","url":null,"abstract":"Minimizing the crest factor of a multitone waveform helps to increase the signal to noise ratio in the measurement and decrease the nonlinear distortions. This paper uses the ac Josephson voltage standard to synthesize multitone waveforms and the L∞ algorithm to optimize the harmonic phases and thus to minimize the crest factor. In the optimization, both random and Schroeder harmonic phases are adopted as initial phases for the algorithm. With the crest factor minimized, the operating margin is increased significantly and the maximum output tone amplitude is doubled from 400 μVrms to 800 μVrms for the multitone waveform composed of 200 continuous harmonics.","PeriodicalId":424006,"journal":{"name":"2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123862175","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
Coupling analysis in the calibration process of electro-optical detection systems 光电检测系统标定过程中的耦合分析
Qijian Tang, Xiangjun Wang, Qingping Yang
{"title":"Coupling analysis in the calibration process of electro-optical detection systems","authors":"Qijian Tang, Xiangjun Wang, Qingping Yang","doi":"10.1109/I2MTC.2015.7151284","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151284","url":null,"abstract":"Electro-optical detection systems should be calibrated prior to use, a commonly used method with an autocollimator and a high precision turntable may introduce large error in the calibration process. This paper analyzed the calibration process, and showed that the nature of the problem was attributed to the plane rotation around a non-orthogonal axis. The mirror's non-orthogonal rotation was divided into position rotation and mirror spinning, and the effects on autocollimator readout were obtained. Simulation results demonstrated that the coupling effects on elevation and azimuth become serious as the inclined angle and rotated angle increase. It is therefore necessary to separate the coupling error in the calibration process, which would provide more accurate data for further compensation.","PeriodicalId":424006,"journal":{"name":"2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"263 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123353686","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
Simple interference detection and classification for industrial Wireless Sensor Networks 工业无线传感器网络的简单干扰检测与分类
E. Sisinni, Stefano Caiola, A. Flammini, M. Gidlund, Filip Barac
{"title":"Simple interference detection and classification for industrial Wireless Sensor Networks","authors":"E. Sisinni, Stefano Caiola, A. Flammini, M. Gidlund, Filip Barac","doi":"10.1109/I2MTC.2015.7151608","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151608","url":null,"abstract":"Wireless Sensor Networks (WSNs) are increasingly deployed in office blocks, residential areas and also industrial locations, thanks to advantages in terms of flexibility and scalability. Nowadays available wireless fieldbuses are widely adopted for process monitoring and offer performance comparable with the wired counterparts, despite they still are more sensitive to interference from external sources. This work investigates the main sources of interference in the 2.4 GHz ISMband and evaluates the adoption of a simple algorithm to identify the interference. The proposed technique, called LPED, is based on bit error nature and forward error correction. The required computational effort is compatible with resources normally available in WSN nodes, as experimentally verified. In addition, performance in presence of IEEE802.11 and iWLAN is also verified; classification is correct in about 90% of cases.","PeriodicalId":424006,"journal":{"name":"2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123684762","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
Measurement of the pupil responses induced by RGB flickering stimuli RGB闪烁刺激诱导瞳孔反应的测量
M. Bernabei, L. Rovati, L. Peretto, R. Tinarelli
{"title":"Measurement of the pupil responses induced by RGB flickering stimuli","authors":"M. Bernabei, L. Rovati, L. Peretto, R. Tinarelli","doi":"10.1109/I2MTC.2015.7151524","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151524","url":null,"abstract":"The big changes in indoor illumination caused by the introduction of LED-based devices may have effects on the health and well-being of the persons that are still under study. From the point of view of flicker, these changes further highlight the inadequacy of the current international standard. With the aim of providing a contribution to a matter that involves several scientific disciplines, new results on pupil responses induced by RGB flickering stimuli are presentedin this paper. Tests on volunteers have been performed to evaluate the inter- and intra-subject variability of pupil responses induced by the above stimuli.An instrument formerly developed (and described in previous paper) has been usedto investigate the pupil response. The results of this extensive measurement campaign are presented and discussed.","PeriodicalId":424006,"journal":{"name":"2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128350077","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
Feasibility study of a non-contact AC voltage measurement system 一种非接触交流电压测量系统的可行性研究
S. ShenilP., Arjun Raveendranath, B. George
{"title":"Feasibility study of a non-contact AC voltage measurement system","authors":"S. ShenilP., Arjun Raveendranath, B. George","doi":"10.1109/I2MTC.2015.7151301","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151301","url":null,"abstract":"An instrumentation scheme suitable for non-contact measurement of ac voltage of an insulated conductor is presented in this paper. The ac voltage of an insulated conductor can be measured by using a suitable probe that forms a capacitive network between the conductor and the ground. Basic idea of such a scheme employing online measurement of the capacitances and then using it for the computation of the unknown voltage has been reported earlier. We conducted a feasibility of the scheme, and found that its output suffers from effect of various parasitic parameters of the measurement circuit and the sensor. In the study, a detailed analysis of the effect of various circuit and parasitic parameters has been conducted and the same is presented in the paper. Based on the inference from the analysis, criteria for the design of the sensor electrodes and other circuit components have been accomplished and presented. The paper also discusses a simple calibration method to reduce the effect of certain parasitic parameters and hence increase the accuracy of the measurement. Moreover a FFT based processing of the measured data has been used in the presented scheme, instead of the complex methods, including analog multiplication, division, etc. employed in the earlier reported scheme. A prototype of the non-contact ac voltage measurement system has been developed and tested in the laboratory for various frequencies and voltages. Worst-case error noticed in the tests conducted was less than 0.75 %.","PeriodicalId":424006,"journal":{"name":"2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128395865","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: 20
A structural framework across strongly and weakly defined measurements 跨强和弱定义测量的结构框架
L. Mari, M. Wilson
{"title":"A structural framework across strongly and weakly defined measurements","authors":"L. Mari, M. Wilson","doi":"10.1109/I2MTC.2015.7151504","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151504","url":null,"abstract":"Is there a framework common to measurement across broad domains of application, including both physical and social science measurement? The answer to this question would determine to an important extent the possibility of building a shared measurement-related body of knowledge across many traditionally separate domains. In this paper, we outline a structural framework of the processes involved in the construction and use of measurement that includes instrument design, standard/reference selection, instrument calibration, measurand definition, and ultimately, instrument operation and data processing.","PeriodicalId":424006,"journal":{"name":"2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130557089","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
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