Optical detecting system

Details Optical detecting system Optical detecting system

1976-05-21

1978-10-31

Buczinski, S. C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

73657, 350269, 350 63, 356 28, G01B 1126, G01N 2900

Patent

active

041231678

ABSTRACT:
An optical detector of remote vibration, comprising a system for obtaining a Doppler signal by mixing reference light with laser light reflected from a vibrating object. The Doppler signal is rectified and the successively highest value of it are stored. The laser light is scanned over the object and the values of scanning waveforms at the time of storage of a maximum return signal are stored, the stored values being read out to control the direction of the laser light so as to locate the region giving maximum return.

REFERENCES:
patent: 3435656 (1969-04-01), Jordan et al.
patent: 3476483 (1969-11-01), Weeks
patent: 3482436 (1969-12-01), Neish et al.
patent: 3504182 (1970-03-01), Pizzurro et al.
patent: 3695761 (1972-10-01), Crosswy et al.
patent: 3809477 (1974-05-01), Russell
patent: 3809480 (1974-05-01), Somerville et al.
patent: 3811774 (1974-05-01), Honeycutt et al.

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