Optical frequency processor

Details Optical frequency processor Optical frequency processor

1975-12-05

1977-06-07

Evans, F. L.

Optics: measuring and testing

Oil testing

250226, 356 88, 356178, G01J 314

Patent

active

040279740

ABSTRACT:
A system for determining the frequency or related characteristic of radiation on a continuous real-time basis includes a prism producing a chromatic dispersion and having two exit paths. One light in one path is attenuated by a constant attenuation factor, the light is attenuated by a constant attenuation factor, the light in the other path is attenuated by a factor that is position determinative. Detectors in each path produce an anolog of the intensities thereof which is processed in accordance with a predetermined function to yield the frequency of the radiation.

REFERENCES:
patent: 2620444 (1952-12-01), Heigl et al.
patent: 2621298 (1952-12-01), Wild et al.
patent: 3737234 (1973-06-01), Shibata et al.

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