MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT; INDICATING DIRECTION OF MOVEMENT

Introduced: September 1968

Classification Context

Section:: PHYSICS
Class:: MEASURING; TESTING
Subclass:: MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT; INDICATING DIRECTION OF MOVEMENT

Description

G01P covers instruments and methods for measuring kinematic quantities including linear and angular velocity, acceleration, deceleration, and shock or impact forces. The subclass encompasses accelerometers, speedometers, tachometers, gyroscopes, and motion detection devices across mechanical, electrical, electromagnetic, and optical measurement principles. It also includes devices that indicate whether motion is occurring or absent, and systems that determine the direction of movement, with applications ranging from automotive and aerospace to seismic monitoring and consumer electronics.

Scope Notes

Limiting references: Combined measuring devices measuring two or more variables of movement, e.g. distance, speed, acceleration Measuring volume flow or mass flow Measuring the velocity of ultrasonic, sonic (sound) or infrasonic waves Measuring velocity of light For determining direction or velocity of solid objects by reflection or reradiation of radio or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation Measuring speed of nuclear or X-radiation | Application references: Measuring or recording blood flow Monitoring speed or acceleration of electrically-propelled vehicles Vehicle optical or lighting devices adapted to indicate speed Control, warning or like safety means along the route or between vehicles or vehicle trains Measuring acceleration of gravity

Related Keywords

measuring ACCELERATIONmeasuring CURRENT(S) in flowing fluidsmeasuring DECELERATIONmeasuring DIRECTION of fluid flowmeasuring DRAG(S)measuring speed of FLUID(S)LOG(S) for measuring speedMACHMETERSmeasuring RETARDATIONmeasuring SHOCK(S)measuring SPEEDTACHOMETERSmeasuring speed or acceleration of VEHICLES

8 direct subcodes

Child Classifications

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G01P 1/00 Details of instruments
G01P 11/00 Measuring average value of speed
G01P 13/00 Indicating or recording presence or absence of movement; Indicating or recording of direction of movement
G01P 15/00 Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
G01P 21/00 Testing or calibrating of apparatus or devices covered by the other groups of this subclass
G01P 3/00 Measuring linear or angular speed; Measuring differences of linear or angular speeds
G01P 5/00 Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
G01P 7/00 Measuring speed by integrating acceleration