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
G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
G01P3/465—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage by using dynamo-electro tachometers or electric generator
Vervollkommnung der Einrichtungen zur Messung der Bremsmomente, erzeugt durch elektromagnetische Bremsvorrichtungen und Regeleinrichtungen dieser Momente
Permanentmagnetrotor mit momentanem Stellungsanzeiger und dynamometrische Maschine, wie ein mit einem solchen Rotor ausgestatteter kollektorloser Motor