International Symposium on Precision Engineering Measurement and Instrumentation最新文献_第6页

Instrument and equipment monitoring system based on the internet of things technology 基于物联网技术的仪器设备监控系统

International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2512174

Meng Su, Shengyu Wei, Linyi Huang, Huawei Xu

引用次数: 0

Sensing the atmosphere of coastal areas of laser detection methods 沿海地区大气感应激光探测方法

International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2511868

Leonid V. Smirnov, V. Ryzhova, A. Grishkanich, I. Konyakhin

引用次数: 0

Research and evaluation of geometric element data fitting software for coordinate measurement machine 坐标测量机几何元素数据拟合软件的研究与评价

International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2512066

Xuewei Cui, Hengzheng Wei, Weinong Wang

{"title":"Research and evaluation of geometric element data fitting software for coordinate measurement machine","authors":"Xuewei Cui, Hengzheng Wei, Weinong Wang","doi":"10.1117/12.2512066","DOIUrl":"https://doi.org/10.1117/12.2512066","url":null,"abstract":"Standard geometry element fitting software is a critical important part of the coordinate measuring machine ( CMM ). It is used for coordinate data processing and data evaluation. At present, the commercial fitting software of the coordinate machine manufacturer is not disclosed to the public. So it is inconvenient to develop secondary applications. This work developed a kind of geometric element fitting software based on open source code. The software can be used to fit CMM measurement data to common geometric elements including lines, circles, planes, spheres, cylinders, and cones. The core algorithm of software is based on a least-squares algorithm and a Gauss-Newton iterative algorithm. Least squares is a data optimization technique that seeks the best function match of the data by the sum of the squares of the smallest errors. The basic idea of the Gauss-Newton iteration method is to replace the nonlinear regression model with the Taylor series expansion approximation. Then through multiple iterations, the regression coefficient is modified several times so that the regression coefficient continuously approaches the optimal regression coefficient of the nonlinear regression model. Finally, the residual square sum of the original model is minimized. The accuracy of fitting results are verified with the standard reference data developed by national institute of standards and technology. The software can be used to the geometry element measurement uncertainty evaluation.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122158216","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

Detection of ring gear surface defects of wheel speed sensor based on neural network 基于神经网络的轮速传感器环齿表面缺陷检测

International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2512221

Zhenwei Huang, Jina Liang, Liu Lei, Jiacheng Hu

引用次数: 1

Field test method and standard instruments for verification of traffic speed meters based on test vehicle 基于试验车辆的交通速度计验证的现场试验方法和标准仪器

International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2513377

L. Du, Qiao Sun, J. Bai, Z. Fan

引用次数: 0

Investigation on the dynamic characteristics of CG-6 relative gravimeter for the micro-gravity network CG-6型微重力网络相对重力仪动态特性研究

International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2511622

S. Liu, Jinyang Feng, Qi-yu Wang, D. Su, Chun-jian Li, Shuqing Wu

引用次数: 2

Deformation measurement of testing machine based on laser interference method 基于激光干涉法的试验机变形测量

International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2511731

Bin Mao, Jianjun Cui, Kai Chen, Honglin Shu, Xueping Shen, H. Shao

{"title":"Deformation measurement of testing machine based on laser interference method","authors":"Bin Mao, Jianjun Cui, Kai Chen, Honglin Shu, Xueping Shen, H. Shao","doi":"10.1117/12.2511731","DOIUrl":"https://doi.org/10.1117/12.2511731","url":null,"abstract":"Tensile, compressive and universal testing machine (Hereinafter referred to as testing machine) is an important instrument for analyzing the pressure of materials. In order to reasonably assess the influence of the deformation of the beam and fixture on the strength analysis of the tested material, the deformation of the beam and fixture of the tested machine, which under the stress state, should be studied. Firstly, the laser interference method is proposed to measure the mechanical deformation characteristics of the beam and fixture. Secondly, we should analyze the structure and theory of measurement technology, give the test method and then calculate the relationship between the deformation of crossbeam and fixture and the stress. Finally, the experimental data are summarized, and the numerical correction method of material shape variables is obtained when testing materials are measured. The experimental results show that the shape variables between the beam and fixture of the testing machine reaches to 0.57mm when the force value reaches to 5 kN. By using this measurement method, the shape variables of the beam and fixture of the testing machine can be measured accurately, and the material deformation can be corrected relevantly during test and analysis of the material strength, which can improve the measurement accuracy of the material deformation for the testing machine.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124556563","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

Control circuit design of magnetic suspension stylus measuring instrument 磁悬浮触针测量仪控制电路设计

International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2511252

Jianfei Zhou, Su-ping Chang, Chunbing Hu, Hao Wu, Zhongyu Zhang

引用次数: 0

Energy analysis method of the laser tracing measurement optical system 激光跟踪测量光学系统的能量分析方法

International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2511266

Hongfang Chen, Liang Tang, Huixu Song, Bo Yu, Zhaoyao Shi

{"title":"Energy analysis method of the laser tracing measurement optical system","authors":"Hongfang Chen, Liang Tang, Huixu Song, Bo Yu, Zhaoyao Shi","doi":"10.1117/12.2511266","DOIUrl":"https://doi.org/10.1117/12.2511266","url":null,"abstract":"This paper proposes an energy analysis method of the laser tracing measurement optical system. Based on the principle of the laser tracing measurement optical system, an energy model is established to analyze the effects of non-ideal optical elements on the energy of the optical system. The simulation results show that the interference pattern is the most obvious when the split ratios of the beam splitters in the interference part and the tracing part are respectively 6:4 and 7:3. Under the above split ratios, the interference signal energy values of four receivers are close to each other and the visibility of fringe pattern reaches 0.99. The visibility of fringe patterns of four interference signals is reduced when the reflectivity of all polarization beam splitters is under non-ideal conditions in an entire optical system. The non-ideality of the transmittance of the polarization beam splitters does not affect the visibility of fringe patterns. The paper provides the theoretical basis for the accuracy improvement, reliability evaluation, optical system design and the selection of optical elements of laser tracing measurement systems.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122752129","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

Development of portable digital ultrasonic guided wave detector based on COM Express 基于COM Express的便携式数字超声导波仪的研制

International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2512177

Meiju Zhang, Wei Liu, Defeng Liu, Feiyue An, Honglei Chen, Zenghua Liu

引用次数: 0