2026-03-08T02:42:19Z https://kanazawa-u.repo.nii.ac.jp/oai

oai:kanazawa-u.repo.nii.ac.jp:00009297 2024-06-20T06:12:28Z 934:935:936

スペックル干渉でのモジュレーション変動下の連続大変形計測 Measurement of Larege Changing Deformation Phase under Fluctuational Modulation of Speckle-Light Intensity Changes 50212519 安達, 正明 高山, 稔 80019744 稲部, 勝幸 松本, 哲也 Copyright © The Japan Society for Precision Engineering 精密工学会 We propose a new method which can measure large changing deformation phases with a speckle interferometry. In a large object deformation, modulations of light intensity change in speckle interferometry often fluctuate, then the modulations can not be assumed, even-roughly, constant over the deformation. In the proposed changing-phase measurement method, large number of changing speckle images during the deformation are continuously captured A few-tens continuing frames are extracted from all the captured frames, and modulations are estimated over the extracted frames. The estimated modulations and light intensity changes are used to calculate deformation phases and also the final phases in the extracted frame. These calculating process are repeated over all the captured frames. With this method we can measure deformation more than 200μm. 精密工学会 = The Japan Society for Precision Engineering 2002-01-01 2017-10-03 jpn journal article VoR http://hdl.handle.net/2297/42413 https://kanazawa-u.repo.nii.ac.jp/records/9297 10.2493/jjspe.68.1326 https://www.jstage.jst.go.jp/browse/jjspe/-char/ja/ http://www.jspe.or.jp/ AN1003250X 0912-0289 精密工学会誌 = Journal of the Japan Society for Precision Engineering 68 10 1326 1330 https://kanazawa-u.repo.nii.ac.jp/record/9297/files/TE-PR-ADACHI-M-1326.pdf application/pdf 550.8 kB 2017-10-03