Optical gyro, driving method and signal processing method therefor
AssigneeCanon Kabushiki Kaisha
InventorsNatsuhiko Mizutani, Takahiro Numai
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Abstract
An optical gyro is provided with a ring laser and detection unit for detecting the beat frequency of said ring laser, and comprises a first ring laser of which beat frequency decreases when the angular velocity increases in a certain direction from a standstill state and a second ring laser of which beat frequency increases when the angular velocity increases regardless of the rotating direction. The first and second ring lasers are so positioned as to be mutually independent optically.
Claims30
An optical gyro provided with a ring laser and detection means for detecting the beat frequency of said ring laser, comprising a first ring laser of which beat frequency decreases when the angular velocity increases in a certain direction from a standstill state and a second ring laser of which beat frequency increases when the angular velocity increases regardless of the rotating direction, wherein said first and second ring lasers are positioned so as to be mutually independent optically.
Dependencies are inferred from the claim text.