Method and apparatus for measuring angular velocity of a transpa

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer

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356 285, 356364, G01B 902

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055173063

ABSTRACT:
A method and apparatus for measuring the angular velocity of a rotating substantially transparent object about an object rotation axis. The apparatus excites an electromagnetic field in a resonator such that an electromagnetic beam propagates along the propagation axis parallel to the object rotation axis. The apparatus then detects a field component of the electromagnetic beam. The detected field component of the electromagnetic beam indicates the angular velocity of the object.

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