Laser system preset unit

Details Laser system preset unit Laser system preset unit

1976-07-13

1977-08-23

Corbin, John K.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

235 92GC, G01B 902

Patent

active

040436713

ABSTRACT:
An electronic circuit is provided which may be used to preset a digital display unit of a Zeeman-effect layer interferometer system which derives distance measurements by comparing a reference signal to a Doppler signal generated at the output of the interferometer laser head. The circuit presets dimensional offsets in the interferometer digital display by electronically inducing a variation in either the Doppler signal or the reference signal, depending upon the direction of the offset, to achieve the desired display preset.

REFERENCES:
patent: 3638001 (1972-01-01), Gordon
patent: 3656853 (1972-04-01), Bagley et al.
patent: 3788746 (1974-01-01), Baldwin et al.
patent: 3790284 (1974-02-01), Baldwin
Rude, "L'interferometre a laser bi-frequence...", Electron. Ind. (France), No. 138, pp. 685-689, Nov. 1972.

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