激光技术Issue(3)：321-324,4.DOI:10.7510/jgjs.issn.1001-3806.2014.03.008
激光刻蚀半球型铂电阻的定位研究
Positioning study in laser corrosion hemisphere platinum resistors
孔荣宗 1刘济春 1吴云峰 2肖红云 1吴波2
作者信息
- 1. 中国空气动力研究与发展中心超高速空气动力研究所，绵阳621000
- 2. 电子科技大学光电信息学院，成都610054
- 折叠
摘要
Abstract
In order to make laser etching on the semicircle accurately , engrave the hemispherical platinum resistance of heat flux sensor and meet the precise positioning of the heat flow measurement points , the method of positioning processing point based on the vision imaging system was used .After theoretical analysis and experimental verification , the positioning data of high platinum resistance was gotten .Firstly, the edge contour was illuminated by the backlight and was visible clearly.Then, after extracting four coordinates on the edges , the hemisphere vertex was calculated .After rotating the platform and compensating the deviation value , the precise processing position was found .Finally, the resistance position of the heat hemispherical sensor was measured and verified .The experimental results show that the method has good positioning effect, the relative error of sphere radius by corrosion is about 0.39%, the relative error of rotation angle of loading platform is controlled in 3.9%.The problem of positioning hemisphere vertex is solved and the precision of laser corrosion is raised .This study is helpful to make platinum resistance on curve surface model by laser .关键词
激光技术/激光刻蚀/视频定位/热流传感器Key words
laser technique/laser corrosion/video positioning/heat sensor分类
信息技术与安全科学引用本文复制引用
孔荣宗,刘济春,吴云峰,肖红云,吴波..激光刻蚀半球型铂电阻的定位研究[J].激光技术,2014,(3):321-324,4.
