Tuning mechanism for dither frequencies in a ring laser gyroscope
AssigneeLitton Systems, Inc.
InventorAlfred L. Butler
Life of this patent
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AssigneeLitton Systems, Inc.
InventorAlfred L. Butler
Estimating the term…
A means for stressing the hub of a laser gyro dither mechanism is provided including a compression bolt passing through an aperture in the hub and having a nut threaded thereon for tightening against the hub until a desired dither frequency is achieved. In an alternative embodiment, the hub is stressed by placing it in tension using a rod within an aperture passing partway through the hub and having a set screw threaded into the aperture such that tightening the set screw forces the rod against the bottom of the aperture to place the hub in tension. The set screw is similarly tightened until a desired dither frequency is achieved. With either of these embodiments, dither frequencies of individual gyros can be adjusted after the gyro system is operational to separate dither frequencies to minimize mechanical frequency interference among the gyros.
In an inertial navigation system, including a plurality of ring laser gyros, each dithered about a gyro spring system at a dither frequency, the improvement comprising:
Dependencies are inferred from the claim text.