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浏览/检索结果: 共2条，第1-2条 帮助 限定条件 内容类型：会议论文    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 The research on distortion measurement and compensation technology in photoelectricity measurement system (EI CONFERENCE) 会议论文 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Hong F.; Mujun X.; Zhiqian W. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25 The distortion made by optical lens largely affect the measurement accuracy of the large field of view photoelectricity measurement system  according to the theory of aberration in the photoelectricity system  this paper design a series of distortion measurement devices  in connection with the process of distortion correction in photoelectricity system  establish the related mathmatics model  make the real time distortion correction by the method of software compensation. The experimental results demonstrate the method decrease the measurement error made by the photoelectricity system distortion  after the compensation  in tatal field of view  the systematic measurement error is less than 0.5 picture element. 2010 IEEE.   CCD laser collimation system (EI CONFERENCE) 会议论文 Proceedings of the International Symposium on Precision Mechanical Measurement, August 11, 2002 - August 16, 2002, Hefei, China Zhang Y.; Zhang M.; Qiao Y. 收藏  |  浏览/下载：10/0  |  提交时间：2013/03/25 The system adhibits complex optical design  so it may eliminate the effect of image error. For the high power semiconductor laser the system can work in atrocious weather -such as smoking-fog. It manufactures a new 24-bit absolute angle-shaft encoder. There are more reading heads  contrastive readings  so it can eliminate the shaft error for discrepancy 90 degree square wave. It uses high precision liner array CCD  then the system may reduce error codes. The practice proves that the system can measure angle and photoelectricity collimation. The precision keeps ahead in home  so the error of one circle is minute to 1.5 in level and the precision of limit is less than 8 .