激光差动共焦曲率半径测量不确定度评定

王旭; 王中宇; 赵维谦; 邱丽荣

激光差动共焦曲率半径测量不确定度评定

1.
北京航空航天大学仪器科学与光电工程学院,北京 100191;
2.
北京理工大学光电学院,北京 100081

详细信息

通讯作者:
王旭（1987-），男，河南洛阳人，博士研究生，主要从事激光差动共焦曲率半径测量精度研究。 Email：x_wang08@163.com

中图分类号: TN98;TH741
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出版历程
- 刊出日期: 2014-01-15

Uncertainty evaluation in laser differential confocal radius-of-curvature measurement

1.
School of Instrument Science &Opto-electronics Engineering,Beihang University,Beijing 100191,China;
2.
Opto-Electronic College,Beijing Institute of Technology,Beijing 100081,China

摘要

摘要: 曲率半径是球面光学元件中的重要参数之一，曲率半径的高精度测量已经成为光学元件使用与加工中的一个关键问题。提出了基于差动共焦法的曲率半径测量方法，研制了1套激光差动共焦曲率半径测量系统，并对2组曲率半径测量结果进行不确定度评定。结果表明，2组曲率半径的测量值均与标称值吻合，其相对误差为0.001 15%，两组测量数据的标准不确定度均优于3.211 1110-4 mm。
- 曲率半径 /
- 差动共焦系统 /
- 测量不确定度 /
- 评定
Abstract: Radius of curvature is one of the primary parameters of optical elements, and radius-of -curvature measurement is critical for precision optics manufacturing. A laser differential confocal radius-of-curvature measurement system was constructed and uncertainties of two groups of curvature radius measurement results were evaluated. It is demonstrated that the measurement results of two groups of curvature radius have a difference of 0.001 15% with each other, which are all consistent with the nominal value, moreover the uncertainties of two groups are both superior to 3.211 1110-4 mm.
- radius of curvature /
- fifferential confocal system /
- measurement uncertainty /
- evaluation

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参考文献(1)

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