2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)最新文献_第3页

A medium voltage signal generator for the testing of voltage measurement transducers 一种用于测试电压测量传感器的中压信号发生器

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI: 10.1109/I2MTC.2013.6555408

M. Faifer, R. Ottoboni, S. Toscani, C. Cherbaucich, M. Gentili, P. Mazza

{"title":"A medium voltage signal generator for the testing of voltage measurement transducers","authors":"M. Faifer, R. Ottoboni, S. Toscani, C. Cherbaucich, M. Gentili, P. Mazza","doi":"10.1109/I2MTC.2013.6555408","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555408","url":null,"abstract":"The importance of power quality monitoring in medium voltage (MV) systems has dramatically increased in the last years. It is well known that a measurement system with wide bandwidth and very low distortion is mandatory for this purpose. Usually, the performance bottlenecks are the transducers which have to be carefully selected according to the required accuracy. Therefore, it is very important to test them in real-world (nonsinusoidal) operating conditions. However, the characterization requires generating arbitrary voltage waveforms with amplitude of several kilovolts. This paper proposes a very simple MV waveform generator employing basic instrumentation which is very common in calibration laboratories. It consists in an arbitrary waveform generator (AWG) connected to a power amplifier which feeds the low voltage winding of a step up transformer. The secondary, high voltage winding is attached to a reference voltage transducer and to the device under test. In general, the shape of the secondary voltage waveform can be very different from the reference voltage of the signal generator. However, assuming that the nonlinearities of the system are negligible, it is possible to estimate the transfer function between the reference voltage of the signal generator and the secondary voltage. Then, it is possible to compute the reference voltage for the AWG in order to obtain the desired secondary voltage waveform. This technique has been implemented and its performance has been tested. The experimental activity has shown that an accuracy of a few percent can be easily achieved.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129955167","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: 15

Innovation-based timestamp validation for reliable sensor network synchronization 基于创新的时间戳验证可靠的传感器网络同步

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI: 10.1109/I2MTC.2013.6555522

Matteo Bertocco, G. Giorgi, C. Narduzzi

引用次数: 7

Comparison of some initialisation methods for the identification of nonlinear state-space models 非线性状态空间模型辨识的几种初始化方法比较

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI: 10.1109/I2MTC.2013.6555526

A. V. Mulders, L. Vanbeylen

引用次数: 4

Measurement of axisymmetric temperature distributions using single view fan-beam TDLAS tomography 使用单视图扇束TDLAS层析成像测量轴对称温度分布

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI: 10.1109/I2MTC.2013.6555540

Chang Liu, Lijun Xu, Z. Cao

引用次数: 6

A study on oxygen saturation images constructed from the skin tissue of human hand 基于人手皮肤组织的氧饱和度图像研究

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI: 10.1109/I2MTC.2013.6555381

H. Tsai, Kuo-Cheng Huang, Han-Chao Chang, Chung-Hsing Chang

{"title":"A study on oxygen saturation images constructed from the skin tissue of human hand","authors":"H. Tsai, Kuo-Cheng Huang, Han-Chao Chang, Chung-Hsing Chang","doi":"10.1109/I2MTC.2013.6555381","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555381","url":null,"abstract":"Under the irradiation of lights of two different wavelengths, the skin image of human hand can be obtained and roughly applied to construct the oxygen saturation image of skin tissue. The penetration (skin) depth of incident light increases with increasing wavelength between 350 to 1000 nm, and the deoxy-hemoglobin (Hb) and oxy-hemoglobin (HbO2) has a relatively high absorptivity in visible and near-infrared (NIR) spectrum, respectively; therefore, the intensity of diffuse reflected images of skin can be used to compute the oxygen saturation images of skin tissue. In the experiment, three LED light sources (red - 660 nm, NIR - 890 and 940 nm) were applied to construct the oxygen saturation images of skin tissue. The experiments show the oxygen saturation ranging from 84.69 to 88.79 % at the wrist and from 78.09 to 81.81 % at the back of hand when the skin tissue is irradiated by 660 and 890 nm LED light. The results not only could provide the distribution of oxygen saturation but also similar to the multi-spectral imaging method. In the future, the above result can be compared to that of transcutaneous oxygen pressure measurement (TcPO2), and provide a good reference to build the relationship between the oxygen saturation and healthy index for cardiovascular system in clinical diagnosis.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129095038","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: 14

Image-based floor segmentation in visual inertial navigation 基于图像的视觉惯性导航地板分割

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI: 10.1109/I2MTC.2013.6555644

Guillem Casas Barcelo, G. Panahandeh, M. Jansson

引用次数: 10

Reliable measurement of Wireless Sensor Network data for forecasting wellness of elderly at smart home 可靠测量无线传感器网络数据，预测智能家居中老年人的健康状况

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI: 10.1109/I2MTC.2013.6555372

N. Suryadevara, S. Mukhopadhyay, R. Wang, R. Rayudu, Y. M. Huang

引用次数: 29

Pseudo non-dyadic second generation wavelet tight frame for machine fault diagnosis 伪非二进第二代小波紧框架机械故障诊断

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI: 10.1109/I2MTC.2013.6555655

Binqiang Chen, Zhousuo Zhang, Jie Zhang, Zhibo Yang, Zhengjia He

{"title":"Pseudo non-dyadic second generation wavelet tight frame for machine fault diagnosis","authors":"Binqiang Chen, Zhousuo Zhang, Jie Zhang, Zhibo Yang, Zhengjia He","doi":"10.1109/I2MTC.2013.6555655","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555655","url":null,"abstract":"This paper investigates a novel wavelet tight frame (WTF) constructing strategy for obtaining pseudo second generation bases with non-dyadic time-frequency partition grids. The proposed constructing strategy starts with a known second generation wavelet basis and applies it in an undecimated filterbank. Via forward and inverse transformation procedure, an input signal is decomposed into a set of dyadic wavelet packets. By introducing a systematic way of wavelet packet reordering and ensemble wavelet generating method, another corresponding set of non-dyadic wavelet packets are generated. It is demonstrated that the derived pseudo non-dyadic second generation wavelet packets (PNSGW) are associated with well-defined band-pass filters, which ensure good time-frequency localizability and exact shift-invariance. The PNSGW strategy is combined with spectral kurtosis to detect incipient faults in mechanical systems. The processing results show that the proposed technique is a well complement to conventional dyadic wavelet transform in investigating transient impulse responses caused by faulty mechanical components.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121464561","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

Real-time processing of multi-frequency eddy currents testing signals 多频涡流检测信号的实时处理

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI: 10.1109/I2MTC.2013.6555631

Luís Filipe Soldado Granadeiro Rosado, M. Piedade, Tiago Catarrunas, P. Ramos

引用次数: 3

Analysis of different coating thickness on new type of planar interdigital sensors for endotoxin detection 新型平面数字间传感器不同涂层厚度的内毒素检测分析

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI: 10.1109/I2MTC.2013.6555663

A. Syaifudin, P. Yu, S. Mukhopadhyay, C. Gooneratne, J. Kosel

引用次数: 5