计量学报2011，Vol.32Issue(2)：123-125,3.DOI:10.3969/j.issn.1000-1158.2011.02.07
CCD自准直仪示值漂移的自校准系统
Self-calibration System for the Value Drifts of CCD Autocollimator
张俊杰 1王震 2李政阳 2张俊秀2
作者信息
- 1. 天津大学,精密仪器与光电子工程学院国家重点实验室,天津300072
- 2. 北京航天计量测试技术研究所,北京100076
- 折叠
摘要
Abstract
When the digital autocollimator is put into use directly, its indications will drift and beat under the influence of environmental conditions such as air streams and the increasing heat of equipment itself, which leads to the measuring errors greatly increased and the measurement results could not return to zero. A fixed mirror which is added as a reference mirror makes the differential measurement with a working mirror and forms a self - calibration system, which could effectively reduce errors. The value of drift is 0. 03" in two hours when working mirror is only used and it reduces to 0. 01" after the adoption of a self- calibration system; the standard deviation of samples is 0. 0911" and it reduces to 0. 0574" after the self - calibration The self - calibration system of differential mirror could effectively reduce the indication errors of CCD autocollimator and plays an efficient role in reducing the indication beat. It is an effective way for the system to reduce the drift and beat of the equipment caused by beth the environmental conditions and the equipment themselves.关键词
计量学/差动法/自准直仪/示值漂移/自校准Key words
Metrology/ Differential method/ Autocollimator/ Indication drifts/ Self - calibration分类
通用工业技术引用本文复制引用
张俊杰,王震,李政阳,张俊秀..CCD自准直仪示值漂移的自校准系统[J].计量学报,2011,32(2):123-125,3.
