Angular position sensor

Details Angular position sensor Angular position sensor

1981-01-14

1983-03-22

Birmiel, Howard A.

Measuring and testing

Vibration

By mechanical waves

324208, 73633, 73618, G01N 2900, G01B 714, G01B 730

Patent

active

043770886

ABSTRACT:
A position sensor for sensing the angular position of an oscillatory member includes a magnetic element which is permanently magnetized in a predetermined direction and is mounted as a unitary structural part of the oscillatory member for oscillatory movement therewith. A Hall plate sensor is positioned adjacent the magnetic element to detect changes in the magnetic field presented thereto by changes in position of the magnetic element. When the magnetic element is oscillated with the transducer, the magnetic field presented to the Hall plate is varied accordingly. This, in turn, produces an electrical signal as an output of the Hall plate which is a function of the instantaneous position of the magnetic element and hence of the oscillatory transducer. That electrical signal may then be used to produce synchronization signals for the imaging apparatus.

REFERENCES:
patent: 3185920 (1965-05-01), Brunner
patent: 3824455 (1974-07-01), Levitt et al.
patent: 3835373 (1974-09-01), Matula
patent: 4092867 (1978-06-01), Matzuk
patent: 4150653 (1979-04-01), Grancoin

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