Erection devices for restoring rotor axis to a desired position

Introduced: September 1968

Last revised: January 2006

Full Title

Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects > Rotary gyroscopes > for indicating the vertical > Erection devices for restoring rotor axis to a desired position

Classification Context

Section:: PHYSICS
Class:: MEASURING; TESTING
Subclass:: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY

4 direct subcodes

Child Classifications

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G01C 19/48 operating by electrical means
G01C 19/5 operating by mechanical means
G01C 19/52 operating by fluid means
G01C 19/54 with correction for acceleration forces due to movement of instrument