Ring laser gyrometers

Introduced: January 1990

Full Title

Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects > Turn-sensitive devices without moving masses > Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams > Ring laser gyrometers

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

IPC defines codes here since 1990.

Child Classifications

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G01C 19/661 +2 CPC CPC only CPC only
G01C 19/667 CPC only CPC only
G01C 19/668 CPC only CPC only
G01C 19/68 Lock-in prevention since 1990 IPC+CPC Available in IPC and CPC