Study Of Ho Lo-Speckle Interferometry

Jiabi Chen

doi:10.1117/12.936927

28 October 1987 Study Of Ho Lo-Speckle Interferometry

Jiabi Chen

Proceedings Volume 0699, Laser and Opto-Electronic Technology in Industry: State-of-the-Art Review; (1987) https://doi.org/10.1117/12.936927
Event: Laser and Opto-Electronic Technology in Industry: State of the Art Review, 1986, Xiamen, China

Abstract

Holo-speckle interferometry (HSI), as a 3-D displacement measuring method is studied in this paper. Three types of HSI are given. The average intensity distributions of its holographic and speckle interference fringes on the output planes are derived. The range of mea-surement and the problem of repositioning holograms for two-reference-beam HSI are disscussed. The results show that the upper limit of out-of-plane displacement is related to the parameters of the optical system and the in-plane displacement of specimen but the upper limit of in-plane displacement is determined by the paremeters only. The rigid body rotation of hologram in reconstruction process of two-reference-beam HSI influences the formation of interference fringes but the rigid body traslation does not have the influence.

Citation Download Citation

Jiabi Chen "Study Of Ho Lo-Speckle Interferometry", Proc. SPIE 0699, Laser and Opto-Electronic Technology in Industry: State-of-the-Art Review, (28 October 1987); https://doi.org/10.1117/12.936927

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