Driving circuit of a grating

Details Driving circuit of a grating Driving circuit of a grating

1984-07-27

1987-02-17

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With monochromator structure

364498, G01J 318

Patent

active

046435727

ABSTRACT:
A driving circuit for rotating the grating of a monochromator thereby changing the wavelength of light which is emitted from the monochromator. This driving circuit includes an operating panel for supplying wavelength data, a data converting circuit which obtains a trigonometric function value corresponding to the wavelength data when the data converting circuit receives the wavelength data, and which converts the wavelength data to angle data on the basis of the trigonometric function value, and a motor driver for rotating the grating into the angular position corresponding to the angle data.

REFERENCES:
patent: 4245908 (1981-01-01), Gawlick
patent: 4318616 (1982-03-01), Chamran et al.
patent: 4322807 (1982-03-01), Chamran et al.
patent: 4469441 (1984-09-01), Bernier et al.
Angus, Optical Spectra, vol. 14, No. 8, Aug. 1980, pp. 49-52.

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