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PCE
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DIFF Subgroup
G01C 19/68

Lock-in prevention

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 > Lock-in prevention

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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  • G01C 19/70 by mechanical means since 1990 IPC+CPC Available in IPC and CPC