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Proceedings Paper

Compact holographic optical element-based electronic speckle pattern interferometer for rotation and vibration measurements
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Paper Abstract

An out-of-plane sensitive electronic speckle pattern interferometer (ESPI) using holographic optical elements (HOEs) for studying rotations and vibrations is presented. Phase stepping is implemented by modulating the wavelength of the laser diode in a path length imbalanced interferometer. The time average ESPI method is used for vibration measurements. Some factors influencing the measurements accuracy are reported. Some advantages and limitations of the system are discussed.

Paper Details

Date Published: 6 April 2017
PDF: 9 pages
Proc. SPIE 10127, Practical Holography XXXI: Materials and Applications, 101270X (6 April 2017); doi: 10.1117/12.2251266
Show Author Affiliations
Viswanath Bavigadda, Dublin Institute of Technology (Ireland)
European Gravitational Observatory (Italy)
Mohesh Moothanchery, Nanyang Technological Univ. (Singapore)
Manojit Pramanik, Nanyang Technological Univ. (Singapore)
Emilia Mihaylova, Dublin Institute of Technology (Ireland)
Agricultural Univ. (Bulgaria)
Vincent Toal, Dublin Institute of Technology (Ireland)

Published in SPIE Proceedings Vol. 10127:
Practical Holography XXXI: Materials and Applications
Hans I. Bjelkhagen; V. Michael Bove Jr., Editor(s)

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