Low cost sensing system and method employing anistropic magneto-

Details Low cost sensing system and method employing anistropic magneto- Low cost sensing system and method employing anistropic magneto-

1980-05-28

1983-11-08

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

338 32R, G01R 3306, H01L 4310

Patent

active

044145101

ABSTRACT:
A sensor comprising a member of ferromagnetic ferrite material having anistropic magneto-resistive properties wherein the resistivity characteristics of the ferrite member vary in response to variations in strength of a magnetic field applied longitudinally with respect to a selected longitudinal axis of the ferrite member. A magnetic field is impressed across the ferrite member with the magnetic lines of flux extending along the longitudinal axis of the ferrite member which exhibits variable magneto-resistive properties. A flow of electric current through the ferrite member along a current path that extends in the same direction or opposite to the direction of the magnetic lines of flux and changes in the value of the electric current flow through the ferrite member are measured as an indication of the value of a physical phenomena being sensed by the sensor.

REFERENCES:
patent: 2946955 (1960-07-01), Kuhrt
patent: 2997948 (1961-08-01), Bozorth
patent: 3493694 (1970-02-01), Hunt
patent: 3716718 (1973-02-01), Almasi et al.
patent: 3848217 (1974-11-01), Lazzari

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