Control of multi-position filter mechanism in an optical measuri

Details Control of multi-position filter mechanism in an optical measuri Control of multi-position filter mechanism in an optical measuri

1982-03-01

1983-08-02

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356332, 356418, 356419, G01J 312, G01J 350

Patent

active

043962882

ABSTRACT:
A method of identifying an operating position of a multiple-position filter changing mechanism situated in an optical path of a spectrophotometer by detecting and measuring a spectral characteristic(s) of light passed along the optical path to the spectrophotometer detector for one or more operating positions of the filter mechanism and comparing the measured spectral characteristic(s) with stored spectral characteristic information for one or more operating positions of the filter mechanism.

REFERENCES:
patent: 3144498 (1964-08-01), Alpert et al.

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