한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)
- 한국정밀공학회 1994년도 추계학술대회 논문집
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- Pages.432-438
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- 1994
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- 2005-8446(pISSN)
동 모우드 형태 계측을 위한 전자 전단간섭계의 개발
DEVELOPMENT OF THE ELECTRONIC SHEAROGRAPHY FOR MEASURING THE VIBR24T1ON MODE SHAPES
초록
This paper describes the measuring method of vibration mode shapes by the Electronic Shearography. Shearographic interferometer has many merits in practical use, that is low sensitive to the environmental noisy, liw limit of the coherent-length and simple optical configuration etc.. In this study, we developed Michelson-type shearing interferometer provided with a phase stepping mirror and with a bias modulation mirror to quantify the vibration gradient fields. As a results of application to a simple cantilever plate vibration amplitude fields were obtained by the proper integration technique, and their exprimental results were in good agreement with those of the ESPI experiment.
키워드