224 レーザスペックルひずみ・変位計測結果に及ぼすレーザ照射角の影響 : 面外計測の場合(OS4-2 相関,ホログラフィ,スペックル,OS4 実験力学手法の新展開3) [in Japanese] 224 Influence of Incident Angle on Laser Speckle Strain Measurement : Out of plane measurement [in Japanese]
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This paper describes the development of an improved speckle strain/displacement gage technique (SSDG). A new measurement technique under the condition of both an arbitrary incident angle of laser beam and an arbitrary measurement angle of CCD camera are needed to monitor various surface strains and displacements. The influence of an irradiation angle and a measurement angle on the in-plane measurement has already studied in the previous paper. In this study, an application to the out-of-plane measurement was developed.