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Design of digital phase shift trigger of induction heating power supply 感应加热电源数字移相触发器的设计
International Conference on Electronic and Mechanical Engineering and Information Technology Pub Date : 1900-01-01 DOI: 10.1109/EMEIT.2011.6023784
Ya-long Su, J. Cui, Gang Peng
{"title":"Design of digital phase shift trigger of induction heating power supply","authors":"Ya-long Su, J. Cui, Gang Peng","doi":"10.1109/EMEIT.2011.6023784","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023784","url":null,"abstract":"Phase shift trigger circuit is important to rectifier circuit with three-phase fully-controlled. In this paper, the phase shift trigger is referred and improved in hardware and software algorithms. The system which has been improved is simple and reliable; it can produce a pulse with good symmetry and anti-jamming capability. It ensures to capture each commutation area and trigger SCR at time.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125710367","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
In-material measurement technique for brittle materials subjected to shock loading 冲击载荷下脆性材料的材料内测量技术
International Conference on Electronic and Mechanical Engineering and Information Technology Pub Date : 1900-01-01 DOI: 10.1109/EMEIT.2011.6023213
Songlin Xu, Yonggui Liu, Hang Zheng, Daorong Wang
{"title":"In-material measurement technique for brittle materials subjected to shock loading","authors":"Songlin Xu, Yonggui Liu, Hang Zheng, Daorong Wang","doi":"10.1109/EMEIT.2011.6023213","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023213","url":null,"abstract":"Two kinds of magnetic gauges, including electromagnetic particle velocity (EMV) gauge and a combined gauge composed of EMV gauge and electromagnetic (EM) stress gauge, are introduced to investigate the dynamic damage of brittle materials subjected to shock loading. The former is now used for the measurements of non-magnetic materials under pressure-shear impact loading. The latter one can be used in normal plate impact, and the experimental results with this gauge could be self-proofed. The preliminarily experimental results show that these techniques are satisfactory.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114346397","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
A study on the stress distribution of pressure vessel and saddle support 压力容器与鞍形支架的应力分布研究
International Conference on Electronic and Mechanical Engineering and Information Technology Pub Date : 1900-01-01 DOI: 10.1109/EMEIT.2011.6022832
Haidong Ren, E. Peng
{"title":"A study on the stress distribution of pressure vessel and saddle support","authors":"Haidong Ren, E. Peng","doi":"10.1109/EMEIT.2011.6022832","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6022832","url":null,"abstract":"This article uses finite-element analysis to know the stress distribution of the horizontal type pressure vessel and saddle support by setting up 1/4 pressure vessel model and single saddle support model. It elaborates the stress distribution of the horizontal type pressure vessel and different parts of the saddle support. Meanwhile, It studies the changing load and relative effects on stress from different geometric parameter.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116401644","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
Time-domain analysis and research on blasting vibration signals based on Fourier transform 基于傅里叶变换的爆破振动信号时域分析与研究
International Conference on Electronic and Mechanical Engineering and Information Technology Pub Date : 1900-01-01 DOI: 10.1109/EMEIT.2011.6022920
Baoquan Geng
{"title":"Time-domain analysis and research on blasting vibration signals based on Fourier transform","authors":"Baoquan Geng","doi":"10.1109/EMEIT.2011.6022920","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6022920","url":null,"abstract":"The blasting earthquake waves characteristics is studied by the Fourier transform in this paper, the energy distribution of blasting vibration signals with short-time and non-stationary characteristics is analyzed by short-time Fourier transform. According to time-frequency properties of Fourier transform, the blasting vibration time signal is scanned with stratified reconstruction signal, the relative energy distribution of blasting vibration and time variation law of the vibration intensity with different frequencies are obtaapined by these signals. The measured results of blasting vibration signal show that the analysis of energy distribution characteristics based on Fourier transform can accurately gives the information of blasting vibration signal. The results provide much more feasible and efficient way of analyzing the structural security of blasting vibration.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116850400","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
Research on mutual fusion scheme of IPv4 and IPv6 IPv4和IPv6相互融合方案的研究
International Conference on Electronic and Mechanical Engineering and Information Technology Pub Date : 1900-01-01 DOI: 10.1109/EMEIT.2011.6023058
Shunyan Wang, Jun Wang, Fangfang Cao, Haitao Zhou
{"title":"Research on mutual fusion scheme of IPv4 and IPv6","authors":"Shunyan Wang, Jun Wang, Fangfang Cao, Haitao Zhou","doi":"10.1109/EMEIT.2011.6023058","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023058","url":null,"abstract":"Based on the problems of IPv4 network, advantages of IPv6 network and limitations of traditional transition mechanisms from IPv4 to IPv6, this research start with extend IPv4 protocol package header, and propose a method for unrestrained communication between IPv4 hosts and IPv6 hosts without changing IPv4 network infrastructure and protocol. Then, combine with the traditional tunneling mechanism to display the mutual fusion scheme of IPv4 and IPv6. Its purpose is to make the IPv6 network has a faster development and become more popular so that solve the problem of IPv4 address is not enough. Therefore it can enhance the process of transition from IPv4 network to IPv6 network.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123994076","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
Detection system of meter pointer based on computer vision 基于计算机视觉的仪表指针检测系统
International Conference on Electronic and Mechanical Engineering and Information Technology Pub Date : 1900-01-01 DOI: 10.1109/EMEIT.2011.6023241
Yanwen Li, Hongwei Zhang, Jinfeng Gong, Hui Rong
{"title":"Detection system of meter pointer based on computer vision","authors":"Yanwen Li, Hongwei Zhang, Jinfeng Gong, Hui Rong","doi":"10.1109/EMEIT.2011.6023241","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023241","url":null,"abstract":"Aimed at problem of Auto meter pointer detection precision, the paper gives a solving plan based on computer vision technology. According to the input parameters provided by Manufacturers, the system can output signal that all kinds of meters need, and detects meter pointers automatically, then outputs result. The system is already applied in detection of CAN BUS digital instrument designed by ourselves. The final test result indicates that the system runs stable, and the function performed is satisfactory.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125946730","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
The investigation on the selection of measuring distance of acoustical holography 声学全息测量距离选择的研究
International Conference on Electronic and Mechanical Engineering and Information Technology Pub Date : 1900-01-01 DOI: 10.1109/EMEIT.2011.6023024
Desen Yang, Xiaoxia Guo, Shengguo Shi, Jianan Ma
{"title":"The investigation on the selection of measuring distance of acoustical holography","authors":"Desen Yang, Xiaoxia Guo, Shengguo Shi, Jianan Ma","doi":"10.1109/EMEIT.2011.6023024","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023024","url":null,"abstract":"To investigate the selection of the underwater large-scale structures measuring distance in acoustical holography, first the sound field distribution of underwater large-scale structure is analyzed, and then for the sound pressure attenuation characteristics of three different regions in the sound field, the sound field reconstruction in a different location of measuring surface is selected. Simulation data analysis results show that: In the process of measuring surface move from Fresnel zone to distance, when the measuring surface is in the transition zone, the error curve of the sound pressure reconstruction declines rapidly. So to get certain sound field reconstruction accuracy and resolution for underwater large-scale structures, measuring surface should be chosen in the transition zone of sound field.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"112 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123328122","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
A chip temperature-controlled technology based on the integrated-circuit CA3046 基于集成电路CA3046的芯片温控技术
International Conference on Electronic and Mechanical Engineering and Information Technology Pub Date : 1900-01-01 DOI: 10.1109/EMEIT.2011.6023318
Gang Gou, Jianping Song
{"title":"A chip temperature-controlled technology based on the integrated-circuit CA3046","authors":"Gang Gou, Jianping Song","doi":"10.1109/EMEIT.2011.6023318","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023318","url":null,"abstract":"By using a SCM as the core control system, and the IC CA3046 for the temperature-controlled chip, we design a technology to control the temperature of the transistor fast and precisely and this is based on the PWM comparator of the analog temperature-controlled circuit. The technology integrates electrical heating system, temperature sensor and transistor for detection in one semiconductor chip, and the SCM controls the chip's temperature which aims at achieving the adjustment, control, measurement and display of the transistor's temperature in the chip, also making chip work at a more stable temperature","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"670 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122968514","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
A frequency prediction method based on estimation of the ionospheric characteristics 基于电离层特性估计的频率预测方法
International Conference on Electronic and Mechanical Engineering and Information Technology Pub Date : 1900-01-01 DOI: 10.1109/EMEIT.2011.6023907
C. Li, Xiaopeng Yang, Feng Wang, Hengyang Zhang, Yunjiang Liu
{"title":"A frequency prediction method based on estimation of the ionospheric characteristics","authors":"C. Li, Xiaopeng Yang, Feng Wang, Hengyang Zhang, Yunjiang Liu","doi":"10.1109/EMEIT.2011.6023907","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023907","url":null,"abstract":"To grasp Complex characteristics of shortwave (HF) channel is the key and difficulty to research HF communication. On the premise of comprehending the ionosphere prediction method in the Asia Oceania region, HF frequency prediction method recommended by the International Telecommunication Union (ITU) is improved in this paper, and the engineering calculation method of predicting HF frequency in the Asia Oceania region is concluded and summarized. Comparing with the ITS (the Institute for Telecommunication Science) software's predicting result, the method is improved to some extent in time availability and SNR in the receiving point.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"260 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115815871","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
The research of software reliability measure based on conditional value at risk 基于条件风险值的软件可靠性测度研究
International Conference on Electronic and Mechanical Engineering and Information Technology Pub Date : 1900-01-01 DOI: 10.1109/EMEIT.2011.6023741
Xiao-mei Zhu, Qun-yan Zhang, Xin Ren
{"title":"The research of software reliability measure based on conditional value at risk","authors":"Xiao-mei Zhu, Qun-yan Zhang, Xin Ren","doi":"10.1109/EMEIT.2011.6023741","DOIUrl":"https://doi.org/10.1109/EMEIT.2011.6023741","url":null,"abstract":"The research on software reliability is one of the main research contents in the software engineering. At present, the research on software reliability mostly focuses on the software reliability analysis in the conventional condition, and the study on software reliability problems at extreme conditions is less. This article introduces the theory of conditional value at risk in the financial risk management to study the problems of software reliability at extreme conditions. The data simulation illustrates the application process of this theory, the conclusions show that this method has a certain application value, which can play a supplementary function for the study of software reliability.","PeriodicalId":221663,"journal":{"name":"International Conference on Electronic and Mechanical Engineering and Information Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121512631","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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