2009 Fiscal Year Final Research Report
A method for strain measurement using digital holography with a micro-retarder array
| Project/Area Number |
20760076
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Aoyama Gakuin University |
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Principal Investigator |
YONEYAMA Satoru Aoyama Gakuin University, 理工学部, 准教授 (90306499)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 機械材料・材料力学 / 応用光学・量子光光学 / 計測工学 / 実験力学 / 応力・ひずみ測定 |
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| Research Abstract |
An approach to simultaneous acquisition of phase-stepped interferograms using a CCD camera equipped with a pixelated micro-retarder array is proposed for digital holographic interferometry. The effectiveness of the proposed method is demonstrated by applying to the deflection measurement of a beam and the measurement of time-varying strain of an electric device under thermal load. Results show that the time-variant displacements and the strains can be measured by the proposed method.
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