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AssigneeHoneywell Inc.
InventorsAndrew W. Kaliszek, Bogdan Szafraniec, Charles H. Lange, Edward Summers
Estimating the term…
A design for an environmentally robust fiber depolarizer for a fiber optic gyroscope is disclosed. The design comprises; substantially a clockwise propagating leg and a counterclockwise propagating leg, distally coupled at opposite ends of a gyroscope sensing coil, said depolarizer fiber leg wound in a that is rotation insensitive pattern and that is also a symmetrical winding pattern. Moreover, axial, radial and embedded sensing coil mounting methods for the fiber depolarizer to reduce the depolarizer sensitivity to thermal variations are also disclosed. Specific attention to the design of the fiber depolarizer of a gyroscope provides enhanced immunity to the stress of environmental variation.
A fiber optic gyroscope comprising a depolarizer and a gyroscope sensing coil, wherein said depolarizer comprises a clockwise propagating leg and a counterclockwise propagating leg, wherein each of said legs comprises a fiber depolarizer segment, wherein each of said legs is wound in a winding pattern and wherein each of said legs is coupled to an end of said gyroscope sensing coil such that said fiber depolarizer is configured to mitigate the effect of environmental variations upon light travelling in said gyroscope sensing coil.
A fiber depolarizer comprising;
A method of making a fiber optic depolarizer, the method comprising the steps of:
Dependencies are inferred from the claim text.