On-Machine Measurement of Large Mirror Profile by Mixed Method
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概要
- 論文の詳細を見る
This paper presents a new differential method called the mixed method, which was developed to measure the profile accurately under the circumstances of on-machine measurement. In comparison with the 2-point method, this method can more remarkably reduce the datum errors due to scanning, vibration and thermal drift. This method also has the advantage of obtaining the high-frequency component of profiles accurately. An optical sensor was designed and constructed to realize both the 2-point method and the mixed method. With a modulation technique, the sensor has been made to have good thermal drift characteristics. It can measure the displacement and angle of two points on a mirror surface simultaneously with a resolution higher than 0.1μm and 1". Using this sensor ; an on-machine measurement system has been constructed, and measurements of the straightness of cylindrical mirrors have been attempted with the 2-point method and the mixed method. Comparing the results, the favorable characteristics of the mixed method have been confirmed.
- 一般社団法人日本機械学会の論文
- 1994-06-15
著者
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Gao W
Tohoku Univ. Miyagi Jpn
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KIYONO Satoshi
Department of Mechatronics and Precision Engineering, Faculty of Engineering, Tohoku University
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Kiyono S
Tohoku Univ. Miyagi Jpn
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Kiyono Satoshi
Department Of Mechanical Engineering Tohoku University
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Gao Wei
Graduate School, Tohoku University
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