Magnetic field sensor with magnetic field-dependent resistor

Details Magnetic field sensor with magnetic field-dependent resistor Magnetic field sensor with magnetic field-dependent resistor

1985-12-18

1988-09-13

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

324208, 324235, 338 32R, G01R 3306, H01L 4308, G01B 714

Patent

active

047712406

ABSTRACT:
In a magnetic field sensor comprising at least one magnetic-field-dependent resistor disposed in the vicinity of an outer side of a housing that is open on at least one side and further comprising a permanent magnet that is adjacent to said magnetic-field-dependent resistor, the magnetic-field-dependent resistor(s) (6), arranged on a support (4), are in a contacting relationship with the inside of a detector side wall (2) of the housing (1), and the thickness (x) of said detector side wall (2) is, at least in the area of the active surface of the magnetic-field-dependent resistors (6), smaller than that of the other housing walls (17, 18, 19) and/or the housing base (20). A rugged, high-resolution magnetic field sensor is thus obtained.

REFERENCES:
patent: 3195043 (1965-07-01), Burig et al.
patent: 4052748 (1977-10-01), Kuijk
patent: 4105972 (1978-08-01), Smith
patent: 4392166 (1983-07-01), Ishikawa et al.
patent: 4420727 (1983-12-01), Rau
patent: 4629982 (1986-12-01), Kieslich
"The Magnetoresistive Sensor-A Sensitive Device for Detecting Magnetic Field Variation"; U. Dibbern et al., 8028 Electronic Components & Applications, vol. 5 (1983), Jun., No. 3, Eindhoven, Nederland, pp. 148-153.
Valvo Technische Information; Magnetoresistive Sensoren, 840323; nach Unterlagen von U. Dibbern und A. J. Petersen bearbeitet von C.-H. Kramp, pp. 1-8.

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