Fourier transform spectrometer having high and low gain channels

Details Fourier transform spectrometer having high and low gain channels Fourier transform spectrometer having high and low gain channels

1996-06-20

1998-02-03

Turner, Samuel A.

Optics: measuring and testing

By particle light scattering

With photocell detection

G01B 902

Patent

active

057150567

ABSTRACT:
A high S/N Fourier transform spectrometer with low A/D converter noise, comprising a light receiving device; a low gain channel and a high gain channel which convert to and retain as digital signals the output from the light receiving device; and a computation control unit which determines a correlation equation between the low gain and high gain channels and substitutes the low gain channel output converted using the correlation equation for the saturated portion of the high gain channel output.

REFERENCES:
patent: 4792230 (1988-12-01), Naganuma et al.
patent: 5110211 (1992-05-01), Niki et al.

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