Pulse generator for a rotary speed sensor

Details Pulse generator for a rotary speed sensor Pulse generator for a rotary speed sensor

1989-06-21

1990-09-04

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 67R, 310261, 310266, H02K 122, G01P 348

Patent

active

049547372

ABSTRACT:
A pulse generator in which a magnetic circuit is closed by a portion of a wall (5) of a cylindrical part rotating about its axis and coupled at one of its ends to a drive member (7). The wall portion and a fixed part (1) together define an air gap which varies depending on the relative angular positions of the wall portion and the fixed part such that during rotation magnetic field variations are generated at a frequency proportional to the speed of rotation of the rotating part. The generator includes an electrically conductive winding (4) in which the field variations generate electrical pulses, and the rotating cylindrical part (5) includes at least one longitudinal slot (8).

REFERENCES:
patent: 3469124 (1969-09-01), Willcox
patent: 4027753 (1977-07-01), Lantz
patent: 4096624 (1978-06-01), Gray et al.
patent: 4282451 (1981-08-01), Bratoljic
patent: 4409506 (1983-10-01), Ito et al.

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