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

Viswanath Bavigadda, Mohesh Moothanchery, Manojit Pramanik, Emilia Mihaylova, Vincent Toal

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationPractical Holography XXXI
Subtitle of host publicationMaterials and Applications
EditorsHans I. Bjelkhagen, V. Michael Bove
PublisherSPIE
ISBN (Electronic)9781510606951
DOIs
Publication statusPublished - 2017
EventSPIE Conference on Practical Holography XXXI: Materials and Applications - San Francisco, United States
Duration: 30 Jan 20171 Feb 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10127
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSPIE Conference on Practical Holography XXXI: Materials and Applications
Country/TerritoryUnited States
CitySan Francisco
Period30/01/171/02/17

Keywords

  • ESPI
  • Holographic optical elements
  • Phase stepping
  • Speckle

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