2013 Fiscal Year Final Research Report
Miniaturization of Digital Holographic Optical System for Displacement and Strain Measurement Using Multiple Imaging Device
| Project/Area Number |
24656089
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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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 | Wakayama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MURATA Yorinobu 和歌山大学, システム工学部, 准教授 (50283958)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | デジタルホログラフィ / 複数撮像素子 / 光学系 / 変位分布計測 / ひずみ分布計測 / 小型化 / 高精度化 |
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| Research Abstract |
Efficient strain measurement technique is required to inspect defects in the infrastructure. Phase-shifting digital holography is a convenient method to measure displacement and strain distributions. To simplify the optical setup is required for producing more compact equipment for practical use. Authors proposed a method to measure displacement and strain using multiple imaging devices. An optical setup using five imaging devices was developed. A simple phase-shifting optical setup to provide reference wave to each imaging device using a spherical wave was proposed. The effectiveness of this proposed method was confirmed.
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