Magnetic field sensor compensated for offset error

Details Magnetic field sensor compensated for offset error Magnetic field sensor compensated for offset error

1984-01-27

1987-09-15

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

Magnetometers

307309, G01R 3302, H03K 1790, H03K 1918

Patent

active

046942483

ABSTRACT:
A magnetic field sensor includes a magnetic field-sensitive element (1), more specifically a magnetic field-sensitive multi-collector transistor (2). To reduce the offset, the setting of this element is modulated to vary the sensitivity. In the variation of the output signal of the element (1) in response to the variation in the sensitivity the offset has then been reduced.

REFERENCES:
patent: 4122505 (1978-10-01), Kuijk
patent: 4296447 (1981-10-01), Lewis

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