Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement

Full Title

Indicating or recording presence or absence of movement; Indicating or recording of direction of movement > Indicating direction only, e.g. by weather vane > Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement

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