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2007 8th International Conference on Electronic Measurement and Instruments最新文献

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Theoretical and Experimental Research on Piezoelectric Sensors Response to Dynamic Strain 压电传感器动态应变响应的理论与实验研究
2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4351115
Song Ying, Wang Zhichen, Du Yanliang
{"title":"Theoretical and Experimental Research on Piezoelectric Sensors Response to Dynamic Strain","authors":"Song Ying, Wang Zhichen, Du Yanliang","doi":"10.1109/ICEMI.2007.4351115","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4351115","url":null,"abstract":"As one of new sensors, piezoelectric sensor has been gotten more and more interests in various fields such as mechanics, highway traffic, construction, air and sea transportation, etc, because of its special characteristics. The paper discusses the dynamic nature of piezoelectric sensor for measuring strain of structure. A method for low-frequency vibration measurement through dynamic strain measurement based on piezoelectric sensing is presented. The study involves theoretical analysis as well as experimental research on piezoelectric sensors response to dynamic strain. Dynamic response of piezoelectric sensor under different exciting frequency(from 0.1 Hz to 40 Hz)was tested, and experimental results with good precision were obtained. It shows that piezoelectric sensor has the characteristic of high sensitivity, wide frequency-response range and good linearity, which meet the requirement of low-frequency vibration measurement in engineering, and can be used for structure health monitoring.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114818038","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: 8
Pavement Crack Detection and Analysis for High-grade Highway 高等级公路路面裂缝检测与分析
2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4351202
Y. Maode, Bo Shao-bo, X. Kun, He Yuyao
{"title":"Pavement Crack Detection and Analysis for High-grade Highway","authors":"Y. Maode, Bo Shao-bo, X. Kun, He Yuyao","doi":"10.1109/ICEMI.2007.4351202","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4351202","url":null,"abstract":"The image processing technology has been widely applied to maintaining and manipulating the high-grade highway, but it is difficult to make a balance between the processing effect and the processing speed. In order to solve this problem, we introduce the morphology to the pavement crack detection for the high-grade highway and propose a novel image processing method in this paper. The approached method reconstructs the median-filter algorithm with four structural elements to enhance the gray-scale pavement images, and combines the morphology-gradient operator with the morphology-close operator to extract the crack edges and fill the gaps of the cracks. After the above processing, the proposed method employs the improved morphology-erosion operator to thin the cracks and obtain the skeletons, and then gets the length and width of cracks by counting. Compared with other traditional methods, the experimental results indicate that our method can not only effectively extract the edges of cracks and evidently decrease the influence of noises, but also gain the exact characteristics of the pavement cracks.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114844504","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: 63
Study on Accurate 3D Magnetic Field Measurement System 高精度三维磁场测量系统的研究
2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350773
Chen Dixiang, Pan Mengchun, Luo Feilu
{"title":"Study on Accurate 3D Magnetic Field Measurement System","authors":"Chen Dixiang, Pan Mengchun, Luo Feilu","doi":"10.1109/ICEMI.2007.4350773","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4350773","url":null,"abstract":"The existed magnetic field measurement systems have some shortcomings just as poor accuracy and automation. Most of them can only achieve one or two dimensions' measurement. The research of accurate 3D magnetic field measurement system is introduced. The 3D magnetic field sensor is made by six Hall devices which are attached to six surfaces of a cube respectively. The output signals of Hall devices are amplified by differential amplifiers and send to data acquisition system. The influence of the surround temperature to Hall device's input resistance is compensated using voltage proportional method which is achieved by sampling the Hall sensor's output voltage and the voltage drop on the sampling resistance alternatively. The measurement result is calculated from the proportion of them, thus constant current source is no longer necessary for the measurement system. Experiments prove that the system's error is 0.5 percent. The system is used to measure the magnetic fields of magnetic levitation vehicle.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114533163","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
Image Pre-processing Algorithm Based on Lateral Inhibition 基于横向抑制的图像预处理算法
2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350778
Zi Fang, Z. Dawei, Zhang Ke
{"title":"Image Pre-processing Algorithm Based on Lateral Inhibition","authors":"Zi Fang, Z. Dawei, Zhang Ke","doi":"10.1109/ICEMI.2007.4350778","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4350778","url":null,"abstract":"Enhancing the contrast and projecting the edge is the two important functions of the lateral inhibition network. Some image details are lost when the infrared image is processed based on traditional lateral inhibition algorithm. A new method that the processed image is weightingly added to the original one is proposed. The algorithm can not only project the image edge, but also overcome the above-mentioned shortage. The simulation results show its effectivity.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114641266","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: 19
Design of Lightning Location System Based on Photon and Infrasound Detection 基于光子和次声探测的闪电定位系统设计
2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350523
Wu Yanjie, Fang Changyuan, Li Yiding, Wang Baoqiang
{"title":"Design of Lightning Location System Based on Photon and Infrasound Detection","authors":"Wu Yanjie, Fang Changyuan, Li Yiding, Wang Baoqiang","doi":"10.1109/ICEMI.2007.4350523","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4350523","url":null,"abstract":"This paper proposes a novel real time lightning detection and location method. In the last decade, lightning location systems were based on electromagnetic radiation pulse and had high cost. Therefore, we develop a new approach which uses light and infrasound of lightning to accomplish the function of detection and location. Lightning location based on light and thunder, with the assistance of computer, becomes available because of the development of light activated element and the strong power of virtual instrument. The operating principles and software design of the lightning detection are given in this paper. The experimental results verify the effectiveness of the proposed method.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114893593","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
A Novel Reentry Telemetry Data Acquisition System 一种新型再入遥测数据采集系统
2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4351155
Zheng Jian, Huang Yafeng, Zheng Wenda
{"title":"A Novel Reentry Telemetry Data Acquisition System","authors":"Zheng Jian, Huang Yafeng, Zheng Wenda","doi":"10.1109/ICEMI.2007.4351155","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4351155","url":null,"abstract":"According to the reentry telemetry data acquisition system's features and special requirements, this paper introduces a novel reentry telemetry data acquisition system. With two high-speed DSP chips and ping-pong storage, it realizes acquisition function of hundreds of slow-changing signals. And the system can meet the needs of high-speed data acquisition, transmission and storage with low error rate and easy maintenance in practice.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116968253","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
Cellular Automata Based M-Sequence Generation 基于元胞自动机的m序列生成
2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350747
Zhang Chuanwu
{"title":"Cellular Automata Based M-Sequence Generation","authors":"Zhang Chuanwu","doi":"10.1109/ICEMI.2007.4350747","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4350747","url":null,"abstract":"Due to the global processing characteristic, the traditional M-sequence generation method based on LFSR is restricted by the speed. Because of the cellular automata has the characteristics of simple regular structure, locality of information processing, and posses the complex dynamic properties, these make it more suitable for the high speed M-sequence generation method based on the cellular automata. For a giving irreducible polynomial, using the synthesis algorithm based on the Euclid's division which bring forwarded by Kevin Cattle, we can obtain the rule vector of the 90/150 cellular automata, and by analyzing the homogeneous characteristic of the cellular automata, we can obtain a set of the cellular automata to generation the M-sequence with high speed.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116973018","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
Relative Sensitivity Analysis of Typical Faults of Guns Based on Virtual Prototyping Technology 基于虚拟样机技术的火炮典型故障相对灵敏度分析
2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350911
Jia Changzhi, Yan Wen, X. Pu, Tao Chenli
{"title":"Relative Sensitivity Analysis of Typical Faults of Guns Based on Virtual Prototyping Technology","authors":"Jia Changzhi, Yan Wen, X. Pu, Tao Chenli","doi":"10.1109/ICEMI.2007.4350911","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4350911","url":null,"abstract":"As conventional land-based armament, guns are playing an important role in local wars in recent decades. The typical faults of guns are analyzed, and three indexes to represent guns performance are put forward and three working principles of guns are outlined. Virtual prototyping model of some-type gun is created by using ADAMS, and the validation is suggested by comparisons of simulation and test results. The degrees of guns faults affecting performance indexes are obtained based on relative sensitivity analysis, thus the comparison difficulty of fault parameters with different dimensions is solved, and the parametric thresholds of guns faults are achieved through virtual prototype according to firing limits of guns. Finally, the perspective of virtual prototyping technology applied in fields of armament engineering is presented.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116317932","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
Effect of Gaussian Source on Differential Confocal Microscopy Pointing Signal 高斯光源对差示共聚焦显微镜指向信号的影响
2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4351038
Kang Pinchun, Zhang Jianhuan, Mao Shulin, Zhang Xiangguo
{"title":"Effect of Gaussian Source on Differential Confocal Microscopy Pointing Signal","authors":"Kang Pinchun, Zhang Jianhuan, Mao Shulin, Zhang Xiangguo","doi":"10.1109/ICEMI.2007.4351038","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4351038","url":null,"abstract":"The axial response of conventional confocal microscopy is affected by an extended Gaussian source, so does the differential confocal microscopy which is proposed because of the better signal to noise ratio(SNR) and better resolutions both in axis and lateral. When the specimen is measured with the method based on the differential confocal microscope, Gaussian source influences the output signal , as well as the measuring accuracy and resolution of the differential confocal microscope. In this paper, the principle of the differential confocal microscopy is introduced, and the optical transfer function of that is obtained according to the 3-D coherent image theory with a z-axial symmetric Lorentzian-Gaussian laser source. Considering both the size of the source and of the beam spot of Gaussian beam, their influences on the axial resolution are studied and calculated. The results are also presented and the conclusion of the influences with a relevant source aperture is obtained finally.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116325982","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
Study of the Technology for Intelligent Decision-Making in BIT 理工学院智能决策技术研究
2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350452
Gao Fengqi, Li Guangyao, Chen Jianhui, Tian Mian
{"title":"Study of the Technology for Intelligent Decision-Making in BIT","authors":"Gao Fengqi, Li Guangyao, Chen Jianhui, Tian Mian","doi":"10.1109/ICEMI.2007.4350452","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4350452","url":null,"abstract":"To meet intelligent diagnostic needs of BIT, it builds up an information network by disperse and single BIT information. And then from using intelligent technologies and information fusion technology, the diagnosability of BIT will be improved greatly. It mainly researches intelligent decision-making technology from three key aspects that are information fusion in decision layer, fuzzy decision and decision-making expert system in the paper. The research has important meanings not only for existing BIT but also for future BIT design work.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116354467","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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