Abstract

A method of one-beam laser speckle interferometry was applied to the measurement of transient thermal strain fields in an aluminum plate heated at a small region. A ruby pulse laser minimized the effect of thermal air turbulence on speckle correlation. High quality isothetic fringe patterns were obtained. The result compares well with available existing data.

© 1980 Optical Society of America

Strain analysis by one-beam laser speckle interferometry. 2: Multiaperture method

F. D. Chiang and R. P. Khetan
Appl. Opt. 18(13) 2175-2186 (1979)

Strain analysis by one-beam laser speckle interferometry. 1: Single aperture method

R. P. Khetan and F. P. Chiang
Appl. Opt. 15(9) 2205-2215 (1976)

Stress analysis of in-plane vibration of 2-D structures by a laser speckle method

F. P. Chiang and C. J. Lin
Appl. Opt. 19(16) 2705-2708 (1980)

Hybrid optical and electronic image processing for strain measurements by speckle photography

B. Ineichen, P. Eglin, and R. Dändliker
Appl. Opt. 19(13) 2191-2195 (1980)

Digital speckle-pattern shearing interferometry

Suezou Nakadate, Toyohiko Yatagai, and Hiroyoshi Saito
Appl. Opt. 19(24) 4241-4246 (1980)