Fiberoptic velocity transducer including dielectric coating for

Details Fiberoptic velocity transducer including dielectric coating for Fiberoptic velocity transducer including dielectric coating for

1995-05-01

1997-04-01

O'Shea, Sandra L.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

25023113, G01P 336, G01D 534

Patent

active

056170220

ABSTRACT:
A fiberoptic velocity transducer for use in determining the rotational speed of an object and comprising a magneto-optic material coated with a dielectric material that operates to selectively pass light energy having a first range of wavelengths, and to reflect light energy having a second range of wavelengths, so as to make the light energy with the second range of wavelengths available as a reference signal, the magneto-optic material functioning to cause a Faraday rotation in the light energy having the first range of wavelengths that is characteristic of the speed of the rotating object.

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