Interferometer delay line with an optical payload supported by a

Details Interferometer delay line with an optical payload supported by a Interferometer delay line with an optical payload supported by a

1995-04-03

1997-03-11

Gonzalez, Frank

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356356, 250237G, G01B 902

Patent

active

056107170

ABSTRACT:
An interferometer delay line includes an optical payload displaced along a guide track under the control of a control device including at least one sensing device which senses the position of the payload along the guide track and a drive device acting on the payload. The sensing device includes a linear succession of fixed optical read heads parallel to the guide track and a graduated rule carried by the optical payload in any position on the latter facing at least one of the optical read heads. The sensing device also includes a synchronizing/switching unit causing a counter to count pulses from the heads in succession, the pulses representing distance increments.

REFERENCES:
patent: 4998798 (1991-03-01), Ishizuka et al.
patent: 5008607 (1991-04-01), Koehler et al.
patent: 5270790 (1993-12-01), Maasumura

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