Photorefractive vibrometer for the detection of high amplitude vibrations on rough surfaces
Abstract
We present and characterize theoretically and experimentally a photorefractive velocimeter. This device, based on two-wave mixing in a rapid photorefractive crystal, measures the instantaneous velocity of a vibrating target. It is particularly adapted to the measurement of high-amplitude (up to several mm) low-frequency (up to several kHz) vibrations. Instantaneous velocities as high as 25 mm s-1 are expected to be measured with common photorefractive semiconductors and CW lasers
Domains
Optics [physics.optics]| Origin | Files produced by the author(s) |
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