[1] Tohoku Univ, Dept Finemech, Precis Nanometrol Lab, Aoba Ku, 6-6-01 Aramaki Aza Aoba, Sendai, Miyagi 9808579, Japan
来源:
PROCEEDINGS OF THE 2018 IEEE INTERNATIONAL CONFERENCE ON ADVANCED MANUFACTURING (IEEE ICAM)
|
2018年
基金:
日本学术振兴会;
关键词:
Angle measurement;
Laser;
Autocollimation;
D O I:
暂无
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
The laser autocollimation utilizes the function of a lens to convert the angle change of a plane mirror into the displacement of a reflected laser beam focused spot on a photodetector. However, in this method, it is hard to achieve both a high resolution and a wide range measurement simultaneously. In this paper, a new optical angle sensor utilizing a broadband optical frequency comb generated from a femto-second laser source and a diffraction grating is proposed for solving this tradeoff.