G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
G01P3/42—Devices characterised by the use of electric or magnetic means
G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Arrangements For Transmission Of Measured Signals
(AREA)
Procede et l'appareil de mesure des quantites d'electricite par moyens statiques, pour le controle de l'etat de charge des batteries de traction notamment