Ring laser gyro system

Details Ring laser gyro system Ring laser gyro system

G - Physics

01

C

345/10

G01C 19/64 (2006.01)

Patent

CA 1205172

ABSTRACT A laser gyro system is disclosed in which two counter rotating waves travel about a closed loop path in opposite directions and a sensor signal is produced which relates to the angular rotation of the system but contains a lock-in-error associated therewith and wherein the lock- in-error is determined by sensing the phased relationship between the two waves, determining the phase angle value between the waves at selected times and choosing one phase angle value to obtain a signature co-efficient from which the lock-in-error can be determined.

406075

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