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AssigneeHoneywell International Inc.
InventorsMichael K. Scruggs, Peter A. Wall, Ming-Hsing Yu, Robert A. Kovacs
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A signal conditioning circuit reduces an interferrometric fiber optic gyro (IFOG) noise, the IFOG including a light source, Integrated Optics Chips (IOC) and a coupler to output an optical power signal corresponding to a rotation-induced phase shift in a fiber coil of the IFOG. The signal conditioning circuit includes a photodiode that converts the optical power signal to a corresponding electrical compensation signal and one or more switched integrators that receive and process the electrical compensation signal by selectively switching between a plurality of modes of each one of the one or more switched integrators. A method of signal conditioning in the IFOG to reduce IFOG noise includes the steps of converting the optical power signal to a corresponding electrical compensation signal and selectively integrating a current of the electrical compensation signal using at least one switched integrator.
A signal conditioning circuit to reduce an interferrometric fiber optic gyro (IFOG) noise, said IFOG including a light source, Integrated Optics Chip (IOC) and coupler to output an optical power signal corresponding to a rotation-induced phase shift in a fiber coil of the IFOG, said signal conditioning circuit comprising:
A method of signal conditioning in an IFOG to reduce IFOG noise, said IFOG including a light source, IOC and coupler to output an optical power signal corresponding to a rotation-induced phase shift in a fiber coil of the IFOG, said method comprising the steps of:
A low noise signal detection apparatus for an IFOG, said IFOG including a light source, a coupler, an integrated optics chip and a fiber coil, said signal detection apparatus comprising:
Dependencies are inferred from the claim text.