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IEEE 2011 10th International Conference on Electronic Measurement & Instruments最新文献

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Design of real-time inspection and aeronautical instrument displaying system for areomotor revving 发动机转速实时检测与航空仪表显示系统设计
IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI: 10.1109/ICEMI.2011.6037809
W. Dongmei, Liu Lingshun, Lv Junwei
{"title":"Design of real-time inspection and aeronautical instrument displaying system for areomotor revving","authors":"W. Dongmei, Liu Lingshun, Lv Junwei","doi":"10.1109/ICEMI.2011.6037809","DOIUrl":"https://doi.org/10.1109/ICEMI.2011.6037809","url":null,"abstract":"In this paper, a kind of real-time inspection and aeronautical instrument displaying system of areomotor revving based on single chip technical is introduced. The system is mainly consisted of signal transformation, single chip microcomputer AT89C51 and step motor's drive electric circuit. Experimental results show that when the intial signal frequency inputted, the aeronautical instrument starts to turn to the corresponding angle position; when the signal frequency constantly changing, the aeronautical instrument turns to move corresponding angle; The accuracy comes to control request while changing frequency; The system is small in size and simple in operation and high steady.","PeriodicalId":321964,"journal":{"name":"IEEE 2011 10th International Conference on Electronic Measurement & Instruments","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121810645","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
Dependability modeling and analysis in a Ship-borne Microwave Unified Instrumentation System 舰载微波统一仪表系统可靠性建模与分析
IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI: 10.1109/ICEMI.2011.6037770
Ma Min, Jianguo Huang, Lu Dan
{"title":"Dependability modeling and analysis in a Ship-borne Microwave Unified Instrumentation System","authors":"Ma Min, Jianguo Huang, Lu Dan","doi":"10.1109/ICEMI.2011.6037770","DOIUrl":"https://doi.org/10.1109/ICEMI.2011.6037770","url":null,"abstract":"With the development of aerospace industry, the number of tasks on sea base steadily increases. It leads that parameters of measurement and control equipment are tested more frequently, their test process is more complicated, and their test time wastes more. At the same time, the demands to improve the dependability of instrument and equipment become urgent. In paper, a typical Ship-borne Microwave Unified Measurement and Control System's dependability will be analyzed and evaluated. However, many common dependability methods can not analyze system's behavior pattern and dynamic change of faults' distribution, which can not meet people's needs. So the Generalized Stochastic Petri Net (GSPN) is applied to build a mathematical model for system. Then the model is isomorphic to markov chain according to stochastic Petri net's properties. Through solving markov equation, many parameters of system dependability are exactly evaluated, such as reliability, maintainability, availability and so on.","PeriodicalId":321964,"journal":{"name":"IEEE 2011 10th International Conference on Electronic Measurement & Instruments","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125202186","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
Design of state-feedback controller by pole placement for a coupled set of inverted pendulums 一组耦合倒立摆的极点配置状态反馈控制器设计
IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI: 10.1109/ICEMI.2011.6037857
Y. Lan, M. Fei
{"title":"Design of state-feedback controller by pole placement for a coupled set of inverted pendulums","authors":"Y. Lan, M. Fei","doi":"10.1109/ICEMI.2011.6037857","DOIUrl":"https://doi.org/10.1109/ICEMI.2011.6037857","url":null,"abstract":"This paper presents controller design based on state-space pole-placement method for a non-linear dynamic system described by a double-parallel inverted pendulum i.e. two identical inverted pendulums on carts coupled by a spring. The state space model of this multivariable, dynamic, unstable and strongly coupled system developed elsewhere is taken and controller design task using pole placement method is carried out. The designed controller is tested on a real time control system. The experimental results verify the significance and performance of the designed controller both in terms of simulations based experiments and on a real laboratory scale system.","PeriodicalId":321964,"journal":{"name":"IEEE 2011 10th International Conference on Electronic Measurement & Instruments","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125281983","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: 24
Analytic calculation of magnetic field and force in Halbach permanent magnet linear motor 哈尔巴赫永磁直线电机磁场和力的解析计算
IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI: 10.1109/ICEMI.2011.6037951
Zhang Qi, Pan Mengchun, Chen Dixiang
{"title":"Analytic calculation of magnetic field and force in Halbach permanent magnet linear motor","authors":"Zhang Qi, Pan Mengchun, Chen Dixiang","doi":"10.1109/ICEMI.2011.6037951","DOIUrl":"https://doi.org/10.1109/ICEMI.2011.6037951","url":null,"abstract":"The calculating formula of magnetic field produced by single permanent magnet (PM) is deduced based on equivalent current model and magnetic field of Halbach PM array is also given. Secondly, A model of linear synchronous motor whose stator is air-cored coil and mover is Halbach PM array is designed. Then, air-gap magnetic field and force are calculated by both the above formula and commercial electromagnetic simulation software MaxWell. The error between the two methods is less than 2 percent. Compared with the software, the formula presented in the paper is accurate and timesaving which can be used as a fast calculating method for designing and validating linear synchronous motor with Halbach PM array.","PeriodicalId":321964,"journal":{"name":"IEEE 2011 10th International Conference on Electronic Measurement & Instruments","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125306215","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
Hyper-field of view monitoring optical system 超视场监测光学系统
IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI: 10.1109/ICEMI.2011.6037957
Pang Yuan, Cheng Hongtao
{"title":"Hyper-field of view monitoring optical system","authors":"Pang Yuan, Cheng Hongtao","doi":"10.1109/ICEMI.2011.6037957","DOIUrl":"https://doi.org/10.1109/ICEMI.2011.6037957","url":null,"abstract":"In the monitoring optical system, it is hope as possible as large field of view. Fish-eye lens can gaze hemisphere and super-hemisphere airspace; meanwhile, because of small size, low power consumption, low cost, can provide an objective real-time images. In the paper using geometric aberration theory and reading kinds of patents. The paper designs a novel fish-eye lens. The field of view (FOV) can be 200 degree and F/3.75. It is composed of 12 spherical lens element. The fish-eye lens operates simultaneously in the visible wavelength regions. It is can be applied to monitoring system that expand field of view. To avoid blind section and enlarge monitoring field.","PeriodicalId":321964,"journal":{"name":"IEEE 2011 10th International Conference on Electronic Measurement & Instruments","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121779001","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
The technology of output signal photoelectric conversion in photonic crystal fiber pressure sensor 光子晶体光纤压力传感器中输出信号光电转换技术
IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI: 10.1109/ICEMI.2011.6037734
Yu Xianlun, Luo Yingxiang, Zheng Xuwu, Cheng Meng
{"title":"The technology of output signal photoelectric conversion in photonic crystal fiber pressure sensor","authors":"Yu Xianlun, Luo Yingxiang, Zheng Xuwu, Cheng Meng","doi":"10.1109/ICEMI.2011.6037734","DOIUrl":"https://doi.org/10.1109/ICEMI.2011.6037734","url":null,"abstract":"Photoelectric detector is the interface devices between the optical and electronic systems in the photoelectric information conversion system. The basic sensitive principle is analyzed in photonic crystal fiber pressure sensors, and the photonic crystal fiber pressure sensor systems and detection system based on strength decoding are designed, beside considering the sensor output signal current value is small, so the InGaAs / InP-APD photodetectors which is in accordance with the performance parameter of photodetector are chosen as the basic devices in the photoelectric conversion. The output signals are amplified by use of pre-signal amplification circuit and dual op amp differential input amplifier circuit. The output signals are detected and the changes of the external pressure are rapidly monitored by the designed detectors and the amplifier circuit.","PeriodicalId":321964,"journal":{"name":"IEEE 2011 10th International Conference on Electronic Measurement & Instruments","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121841706","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
Black box can restore lightning parameters-research on lightning parameter recorder for real-time monitoring 黑匣子可还原雷电参数——雷电参数记录仪实时监测研究
IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI: 10.1109/ICEMI.2011.6037996
Z. Jianmin, B. Bao, Zhong Wanqiang, L. Yi
{"title":"Black box can restore lightning parameters-research on lightning parameter recorder for real-time monitoring","authors":"Z. Jianmin, B. Bao, Zhong Wanqiang, L. Yi","doi":"10.1109/ICEMI.2011.6037996","DOIUrl":"https://doi.org/10.1109/ICEMI.2011.6037996","url":null,"abstract":"For monitoring lightning strikes online and in real-time, develop the “black box”(online lightning real-time monitoring instrument), which includes lightning sensor and data processor. And introduce their software structure. Then give the experimental comparison and application prospects. Finally, get the conclusion: the “black box” can help the researches on lightning disaster, line management, line lightning protection, and lightning risk assessment.","PeriodicalId":321964,"journal":{"name":"IEEE 2011 10th International Conference on Electronic Measurement & Instruments","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127674107","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
Information fusion feature preprocessor based on FRFT for analog circuits fault diagnosis 基于FRFT的信息融合特征预处理在模拟电路故障诊断中的应用
IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI: 10.1109/ICEMI.2011.6037963
Luo Hui, You-ren Wang, Lin Hua, Jiang Yuanyuan
{"title":"Information fusion feature preprocessor based on FRFT for analog circuits fault diagnosis","authors":"Luo Hui, You-ren Wang, Lin Hua, Jiang Yuanyuan","doi":"10.1109/ICEMI.2011.6037963","DOIUrl":"https://doi.org/10.1109/ICEMI.2011.6037963","url":null,"abstract":"This paper presents a new fault feature preprocessor method for analog circuit fault diagnosis. An information fusion method based on fractional Fourier transform (FRFT) is introduced to extract features from voltages of the circuit under test (CUT). Firstly, the voltage signals gathered from test nodes of the CUT are preprocessed by FRFT, the fractional order p of the FRFT changes from 0 to 1 with a given step. Then, we gain the amplitudes of the transformed signals in fractional space and extract the mutual information entropies as features by a defined division scale. After normalization, the extracted features are used to train a neural network to diagnose faulty components in the CUT. The proposed feature preprocessor method is applied to two CUTs and is compared with three ordinary preprocessing methods in analog circuit fault diagnosis. The experiment results reveal that the proposed method can simplify the structure of the network and improve the diagnosis performance.","PeriodicalId":321964,"journal":{"name":"IEEE 2011 10th International Conference on Electronic Measurement & Instruments","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132712948","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
Design and realization of compensation for one type of broadband acquisition channel 一种宽带采集信道补偿的设计与实现
IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI: 10.1109/ICEMI.2011.6037890
Qiu Duyu, Tian Shu-lin, Pan Huiqing
{"title":"Design and realization of compensation for one type of broadband acquisition channel","authors":"Qiu Duyu, Tian Shu-lin, Pan Huiqing","doi":"10.1109/ICEMI.2011.6037890","DOIUrl":"https://doi.org/10.1109/ICEMI.2011.6037890","url":null,"abstract":"Bandwidth of analog channel is one of the key factors that restrict the escalation of performances of digital storage oscilloscope. The performances of wideband analog channel are affected by various factors such as features of separation components, distribution parameters and input bandwidth of high-speed ADC, etc. The article analyzes in detail various factors that have influence upon bandwidth in hardware circuit from the perspective of system level, and has put forward related solutions for improvement; In conjunction with frequency domain compensation theory, and by taking reference of Gaussian frequency response curve, and through digital compensation to analog channel by way of algorithm, compensation results are obtained and are presented in the article. Test results demonstrate that −3dB bandwidth of the whole unit is higher than 1GHz. Method given in the article can also be extended into wide ranges of wideband testing instrument such as signal generator, and spectrum analyzer etc.","PeriodicalId":321964,"journal":{"name":"IEEE 2011 10th International Conference on Electronic Measurement & Instruments","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132815679","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
Analysis of Si3N4 passivation effect by self-consistent electro-thermal-mechanical simulation in AlGaN/GaN heterostructure HEMTs AlGaN/GaN异质结构hemt中Si3N4钝化效应的自一致电热-力学模拟分析
IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI: 10.1109/ICEMI.2011.6037721
Raunak Kumar, A. Prakash, B. Prabowo, A. Anumeha, Tsai Jungruey, G. Sheu, Yang Shaoming, Guo Yufeng
{"title":"Analysis of Si3N4 passivation effect by self-consistent electro-thermal-mechanical simulation in AlGaN/GaN heterostructure HEMTs","authors":"Raunak Kumar, A. Prakash, B. Prabowo, A. Anumeha, Tsai Jungruey, G. Sheu, Yang Shaoming, Guo Yufeng","doi":"10.1109/ICEMI.2011.6037721","DOIUrl":"https://doi.org/10.1109/ICEMI.2011.6037721","url":null,"abstract":"The effect of surface passivation on AlGaN/GaN higher electron mobility transistors (HEMT) has been investigated with electro-thermal-mechanical coupling. Electrical, mechanical and thermal properties of AlGaN/GaN HEMTs before and after passivation are analyzed. The drain current increases after passivation because surface passivation reduces the surface state density. Also, planar stress and elastic energy were decreased, as compare the devices with passivation and without passivation conditions. Also, the effect of different lattice heating (uniform heating, no lattice heating) has been studied in this experiment. This shows that the elastic energy in device with uniform heating is lower than that without lattice heating. In this investigation we found that uniform heating will provide elastic energy lower than critical value and with the use of Si3N4 the temperature distribution is very uniform which in turn reduces the stress in AlGaN/GaN HEMTs.","PeriodicalId":321964,"journal":{"name":"IEEE 2011 10th International Conference on Electronic Measurement & Instruments","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133208766","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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