Multipulsed dynamic moire interferometer

Details Multipulsed dynamic moire interferometer Multipulsed dynamic moire interferometer

1989-10-06

1991-06-25

Turner, Samuel

Optics: measuring and testing

Material strain analysis

By light interference detector

356354, G01L 124

Patent

active

050261541

ABSTRACT:
An improved dynamic moire interferometer comprised of a lasing medium providing a plurality of beams of coherent light, a multiple q-switch producing multiple trains of 100,000 or more pulses per second, a combining means collimating multiple trains of pulses into substantially a single train and directing beams to specimen gratings affixed to a test material, and a controller, triggering and sequencing the emission of the pulses with the occurrence and recording of a dynamic loading event.

REFERENCES:
patent: 4850693 (1989-07-01), Deason et al.
Diffraction Moire: The Dynamic Regime, Deason et al., SPIE Proceedings, vol. 746, 8-1987.

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