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Real Time Two Color Variable Resolution Video Moire And Error Map Moire Using A Mach-Zehnder Interferometer, Neville Maycock, August Schutte, Joel H. Blatt

Aerospace, Physics, and Space Science Faculty Publications

A variable resolution two color video moire system has been built which uses a dual laser illuminated Mach-Zehnder interferometer as the fringe projector. One input of the interferometer is illuminated by a He-Ne laser and the other by an Argon-Ion laser, allowing simultaneous projection of red and green fringes with different spatial frequencies. The dual interferometer outputs are also used, allowing illumination of both the target and reference surfaces. Video cameras view the two surfaces and by mixing the video signals with a chroma-key mix in a video special effects generator, real time moire can be observed. A piezo-electrically driven …