Compact monopole digital tachometer generator for use in airborne vehicles

Compact monopole digital tachometer generator for use in airborne vehicles

A motion detection device such as a tachometer generator (10), is disclosed for the detection of the rotation of a body or shaft around an axis. The generator (10) includes a perforated disc (15) mounted on a shaft (8), and a sensing device (24) including a coil (25) and magnet (21) mounted in close...

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Hauptverfasser: BEATTIE, STEVEN K, RICHARDS, PAUL C, SMITH, DAVID A
Format: Patent
Sprache:eng
Schlagworte:
INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
MEASURING
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK
PHYSICS
TESTING
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creator BEATTIE
STEVEN K
RICHARDS
PAUL C
SMITH
DAVID A
description A motion detection device such as a tachometer generator (10), is disclosed for the detection of the rotation of a body or shaft around an axis. The generator (10) includes a perforated disc (15) mounted on a shaft (8), and a sensing device (24) including a coil (25) and magnet (21) mounted in close proximity to the perforated disc (15). The disc (15) is made of a ferrous material. When rotated, the alternating holes (16,17) and webs (18) in the disc (15) produce an alternating current in the sensor (24), the frequency of which is proportional to the rotational speed of the disc. Any number of sensors (24) may be used and the disc (15) may have any number of holes (16,17). The signal developed by each or any sensor (24) is transmitted by wires (1,2) to a suitable indicating or recording device.
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subjects INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
MEASURING
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK
PHYSICS
TESTING
title Compact monopole digital tachometer generator for use in airborne vehicles
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