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

Authors

• Viswanath Bavigadda, Technological University DublinFollow
• Mohesh Moothanchery, Nanyang Technological University, Singapore
• Manojit Pramanik, Nanyang Technological University, Singapore
• Emilia Mihaylova, Technological University DublinFollow
• Vincent Toal, Technological University DublinFollow

Document Type

Conference Paper

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

1.3 PHYSICAL SCIENCES, Optics

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.

DOI

https://doi.org/10.1117/12.2251266

Recommended Citation

Viswanath Bavigadda, Mohesh Moothanchery, Manojit Pramanik, Emilia Mihaylova, Vincent Toal, "Compact holographic optical element-based electronic speckle pattern interferometer for rotation and vibration measurements," Proc. SPIE 10127, Practical Holography XXXI: Materials and Applications, 101270X (6 April 2017); DOI: 10.1117/12.2251266

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 International License.