Apparatus for processing output signal of sensor with magnetic r

Details Apparatus for processing output signal of sensor with magnetic r Apparatus for processing output signal of sensor with magnetic r

1991-05-22

1992-10-06

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420711, 32420712, 324174, G01B 714, G01P 348, G01P 354

Patent

active

051535130

ABSTRACT:
In an apparatus for processing an output signal of a rotation sensor having a magnetic-electric transducer and the associated magnetic rotary member, a first level discriminator responsive to the output signal produces a first signal whose level changes at a detection time the transducer relatively comes opposite a predetermined position of the rotary member, and a second level discriminator responsive to the output signal produces a second signal whose level changes at a time different from the detection time. In order to obtain a pulse carrying information on the detection time, the first and second signals are input to a logic circuit, by which the pulse is produced in response to the change in the level of the first signal only in the case where the level of the second signal is in a prescribed state when the level of the first signal changes at the detection time, whereby the desired detection time can be precisely determined.

REFERENCES:
patent: 4922757 (1990-05-01), Rozelle et al.

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