Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21
Online ISSN : 2424-3086
ISSN-L : 2424-3086
セッションID: C016
会議情報
C016 An ultra-sensitive angle sensor based on laser autocollimation for stage motion measurement
Dai MURATASiew-Leng TANYuki SHIMIZUSo ITOWei GAO
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会議録・要旨集 フリー

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This paper proposes a method of improving the sensitivity of the angle sensor for angular motion errors of precision linear stages. The sensitivity of the angle sensor based on laser autocollimation depends on the diameter of the incident beam on the objective lens. The relationship between the sensitivity of the sensor and the beam diameter is investigated by expanding the diameter and using a single-cell photodiode as the position-sensing detector corresponding to a small light spot. From the experimental result, the sensitivity is improved by expanding the diameter and the sensor can detect angular motion of about 0.001".
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© 2013 一般社団法人 日本機械学会
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