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International Symposium on Precision Engineering Measurement and Instrumentation最新文献

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A high precision edge detection method for the blurred image in motion measurement 一种运动测量中模糊图像的高精度边缘检测方法
International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2511940
Zhang Ying, C. Cai, Zhihua Liu, Yang Ming
{"title":"A high precision edge detection method for the blurred image in motion measurement","authors":"Zhang Ying, C. Cai, Zhihua Liu, Yang Ming","doi":"10.1117/12.2511940","DOIUrl":"https://doi.org/10.1117/12.2511940","url":null,"abstract":"The motion measurement based on machine vision has been more and more widely used in robots, object tracking and other fields. However, the relative motion between camera and object often causes images blurred, which decreases the reliability of detection. To improve the detection accuracy of the motion-blurred images edges, a comprehensive method is proposed. By analyzing the grayscale distribution of the object images in different motion directions, we used different methods to enhance the low frequency sub-band images which were obtained by wavelet transform. The subpixel edge detection method based on cubic spline interpolation was applied to detect the edges of the blurred and enhanced images, respectively. Experimental results show that the proposed method avoids the misdetection of the blurred images edges, and obtains higher edge detection accuracy.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"81 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":"134148448","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
Synthesis and metrology of cellulose nanocrystal films 纤维素纳米晶膜的合成与计量
International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2511218
Cong Cao, Dongsheng Zhao, Ying Tang, Tingting Peng
{"title":"Synthesis and metrology of cellulose nanocrystal films","authors":"Cong Cao, Dongsheng Zhao, Ying Tang, Tingting Peng","doi":"10.1117/12.2511218","DOIUrl":"https://doi.org/10.1117/12.2511218","url":null,"abstract":"Cellulose nanocrystal (CNC) is an emerging nanomaterial that has drawn increasing attention recently. It is abundant, sustainable, renewable, and biodegradable. They have unique chemical and mechanical characteristics that cannot be met by traditional cellulose-derived materials, such as high aspect ratio, low density, high stiffness, high tensile strength and very low coefficients of thermal expansion. This paper is focused on the formation and characterization of CNC films and the subsequent traceable metrology of CNC film thickness by atomic force microscopy (AFM). The AFM is calibrated by a series of certified reference materials, and thus the measured values can be traceable to the laser wavelength reference (meter definition). Results show that CNC films with negative charges on surface can be formed via physisorption to an amine-terminated thiol layer on gold through spin coating. The CNC film thickness can be controlled by CNC solution concentration. A thorough understanding of CNC metrology is the foundation for further study of CNC chemical and mechanical characteristics and applications.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"37 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":"134297645","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
Measurement method of the compression coefficient of near-monocrystalline silicon density liquid 近单晶硅密度液体压缩系数的测量方法
International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2512095
Xin-yu Ma, Jin-tao Wang, Zhi-Yong Luo
{"title":"Measurement method of the compression coefficient of near-monocrystalline silicon density liquid","authors":"Xin-yu Ma, Jin-tao Wang, Zhi-Yong Luo","doi":"10.1117/12.2512095","DOIUrl":"https://doi.org/10.1117/12.2512095","url":null,"abstract":"The standard near-silicon liquid (2329kg/m3) is a mixture liquid of tribromopropane and dibromoethane in a certain proportion. This liquid is used to measure the density of single crystal silicon spheres by a static suspension method and the analysis of the difference in the micro density between two silicon spheres. Measuring the difference in the micro-density of the silicon spheres is of great significance for the new definition of the new mass of kilograms. In order to obtain the micro-density difference of the silicon spheres, it is necessary to calculate the static pressure value and the temperature by separately adjusting the singlecrystal silicon spheres to the same suspension state and the compression coefficient of the near-monocrystalline silicon density liquid. Through the adjustment of the same hydrostatic suspension state of a single silica ball in different suspension states, the linear constants measured by the linear model are analyzed to calculate the liquid compression coefficient. For this purpose, a static suspension measuring device for a single crystal silicon ball was designed to maintain the water bath within a range of ±0.1mk within 3 hours, and the position control of the silicon ball was determined by controlling the pressure of the upper computer.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"16 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":"116030797","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
Error mapping for rotary axes of machine tools based on pose measurement principle 基于位姿测量原理的机床旋转轴误差映射
International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2511850
Hai-Tao Li, Jiangong Sun, Xianming Gao, Xinlong Yang, Junjie Guo
{"title":"Error mapping for rotary axes of machine tools based on pose measurement principle","authors":"Hai-Tao Li, Jiangong Sun, Xianming Gao, Xinlong Yang, Junjie Guo","doi":"10.1117/12.2511850","DOIUrl":"https://doi.org/10.1117/12.2511850","url":null,"abstract":"Laser tracker has been introduced successfully for geometric deviations calibration of multi-axis machine tools. In this paper, a new method called “pose measurement principle” is developed for measuring geometrical error of rotary axes by means of a single laser tracker and NC precise table. The reflector is mounted on the NC precise table with eccentricity, and the NC precise table is mounted on rotary table. A single laser tracker located at different base stations in order is used for coordinate determination of three fixed points of the reflector to get the pose information of rotary axes, then calculate the pose deviations and identify all the errors. For the error identification, first of all, with the extension of the definition of geometric errors, the 6 geometric errors is represented by pose deviation. Second, 3 angular errors are identified geometrically first, then eliminate the angular errors of all measuring coordinates to obtain the 3 straightness errors. Finally, the 6 errors mathematical model for rotary table is developed. The validity of the proposed method has been confirmed by simulations and experiments. From both of them, it has been confirmed that the proposed method gives precise results and is able to apply to the measurement of rotary axes effectively.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"75 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":"117189599","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
Subwavelength focusing and experimental detection of large-scale metallic multi-annular metasurfaces 大规模金属多环形超表面的亚波长聚焦与实验检测
International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2517191
Tong Wang, Tao Liu, Shuming Yang, Biyao Cheng, Qiang Liu, Kang Liu
{"title":"Subwavelength focusing and experimental detection of large-scale metallic multi-annular metasurfaces","authors":"Tong Wang, Tao Liu, Shuming Yang, Biyao Cheng, Qiang Liu, Kang Liu","doi":"10.1117/12.2517191","DOIUrl":"https://doi.org/10.1117/12.2517191","url":null,"abstract":"To realize a long working distance and high resolution focusing for diffraction optical element, the large-scale optical elements need to be employed. Based on the vectorial angular spectrum theory and genetic algorithm, a large-scale metallic multi-annular metasurface (MAM) was designed. The MAM realizes subwavelength focusing and has a main focal spot within the range of 0–140 μm. The focal length is 113.5 μm. Using electron beam lithography, the designed MAM was fabricated. The experimental setup was built. The intensity distribution of the main focal spot was experimentally obtained. The theoretical and experimental results have a good agreement, which show that the proposed method can be used to design the large-scale MAM.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"66 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":"123032973","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
Measurement of 3-dB linewidth of FBG Fabry-Perot interferometer using tunable fiber laser 用可调谐光纤激光器测量FBG法布里-珀罗干涉仪3db线宽
International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2509936
Dajuan Lyu, Peide Liu, Yifei Ma, Wentao Zhang, Liangming Xiong
{"title":"Measurement of 3-dB linewidth of FBG Fabry-Perot interferometer using tunable fiber laser","authors":"Dajuan Lyu, Peide Liu, Yifei Ma, Wentao Zhang, Liangming Xiong","doi":"10.1117/12.2509936","DOIUrl":"https://doi.org/10.1117/12.2509936","url":null,"abstract":"We present a simple method to measure the 3 dB linewidth of the sharp peak in the spectrum of the fiber Bragg gratingbased Fabry–Perot (FBG-FP) interferometer. A narrow linewidth tunable laser is used for sweeping the FBG-FP to achieve the reflection spectrum. A triangle wave is used to drive the narrow linewidth tunable laser. The linewidth of the sharp peak is measured with a resolution of 0.001 pm.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"37 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":"123428313","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 measurement method for probe microsphere of micro-CMM with double SPMs 双SPMs微型三坐标测量机探针微球的测量方法
International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2511575
C. Fang, Qiangxian Huang, Meng Mi, Chao-qun Wang, Lijuan Chen, Liansheng Zhang, Hongli Li
{"title":"A measurement method for probe microsphere of micro-CMM with double SPMs","authors":"C. Fang, Qiangxian Huang, Meng Mi, Chao-qun Wang, Lijuan Chen, Liansheng Zhang, Hongli Li","doi":"10.1117/12.2511575","DOIUrl":"https://doi.org/10.1117/12.2511575","url":null,"abstract":"Probe tip of the Micro-coordinate Measuring Machine (Micro-CMM) is a microsphere with diameter of several hundred microns, and its sphericity is generally controlled at tens to hundreds of nanometers. Due to the small size and high precision requirement, the measurement of the microsphere morphology is difficult. In this paper, a measurement method for probe microsphere of Micro-CMM is proposed based on two SPM (Scanning Probe Microscope) probes, and a ruby microsphere of a Renishaw commercial CMM stylus is measured by the proposed method. In the experiment, the repeatability error of a maximum section profile is test, and the repeatability error is 41 nm (peak-to-peak value). Two perpendicular maximum section profiles are measured, and the corresponding diameter and roundness are estimated by the least squares method.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"62 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":"122809421","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
Wavelength calibration system for diode laser 二极管激光器波长标定系统
International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2512198
Xiang Cheng, Xiaojun Liu, Changchun Chai, Hongzhou Yan, Jian Luo, Hong Zhu, H. Zhou
{"title":"Wavelength calibration system for diode laser","authors":"Xiang Cheng, Xiaojun Liu, Changchun Chai, Hongzhou Yan, Jian Luo, Hong Zhu, H. Zhou","doi":"10.1117/12.2512198","DOIUrl":"https://doi.org/10.1117/12.2512198","url":null,"abstract":"Currently the diode laser is widely used in the field of optoelectronics, especially in precise measurement based on laser-interferometry. Laser wavelength stability is a property that critical to the measurement. Since the laser wavelength is easy to be influenced by the environment and drive current, real-time monitoring and calibration of diode laser wavelength is extraordinary important for interferometry. In this paper, a real-time wavelength monitoring and calibration system for diode laser based interference measurement were developed. The experiment system was built and conducted to verify the feasibility of the system.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"24 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":"124899177","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, fabrication, identification and test of a closed-loop moving magnetic scanning module for RGB laser projector RGB激光投影仪闭环移动磁扫描模块的设计、制造、鉴定和测试
International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2512125
C. Chung, Chendong Lin, Ming-Fu Chen, S. Tseng
{"title":"Design, fabrication, identification and test of a closed-loop moving magnetic scanning module for RGB laser projector","authors":"C. Chung, Chendong Lin, Ming-Fu Chen, S. Tseng","doi":"10.1117/12.2512125","DOIUrl":"https://doi.org/10.1117/12.2512125","url":null,"abstract":"Galvanometric scanning systems are high inertial behavior and high-speed movement widely that be used in laser marking, drilling, full screen projecting and so on. Therefore, the presented galvanometric scanning system and its applications for laser projector system. In includes a galvanometric unit, motor, position detector and control circuit. All components were discussed and developed by this study. The magnetic rotor and a stator magnet are the main components of the scanner system. The moving magnet is composed of NdFeB material and the stator consists of the coil. In addition, the moving capacitive sensor is used to receive signal feedback. The driver is assembled by the high response performance OP-amplifier circuit. Finally, frequency domain methods were used to identify the scanning system.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"12 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":"124903915","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
Force control and visual measurement in precision assembly 精密装配中的力控制和目测
International Symposium on Precision Engineering Measurement and Instrumentation Pub Date : 2019-03-07 DOI: 10.1117/12.2512139
Ya-wei Li, Xiao-dong Wang, Yi Luo, Shengsheng Sun
{"title":"Force control and visual measurement in precision assembly","authors":"Ya-wei Li, Xiao-dong Wang, Yi Luo, Shengsheng Sun","doi":"10.1117/12.2512139","DOIUrl":"https://doi.org/10.1117/12.2512139","url":null,"abstract":"On account of the assembling demand for the metal framework of frequency stabilizing component for laser gyro, a precision assembly system was designed and developed in this paper. The coaxiality of the metal framework and the grooved mirror is the key index to assembly. Meanwhile, the grooved mirror is fragile and the assembly force has to be monitored and controlled in real time. The installation structure of force sensor is designed and a force control unit is established. The contact force can be detected and feedback to control the movement of the linear stages to complete the displacement in the vertical direction for the operation of pick up and place parts for end effector. To reduce the time of image processing, the machine vision unit is based on high repeatability accuracy of the stage to assist image mosaic, thus the calculation workload for image mosaic is reduced, and the time of image mosaic is about 0.5s.","PeriodicalId":115119,"journal":{"name":"International Symposium on Precision Engineering Measurement and Instrumentation","volume":"1 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":"129078364","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
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