Electricity: measuring and testing – Magnetic – With compensation for test variable
Patent
1988-02-29
1989-09-19
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Magnetic
With compensation for test variable
324208, 324252, 307309, 338 32R, G01N 2772, G01B 714, H01L 4308, H03K 1714
Patent
active
048689092
ABSTRACT:
A circuit for deriving a temperature-independent square-wave signal from a measurement signal which consists of a DC component and an AC component and which is taken across a magneto-resistor exposed to an alternating magnetic field. The circuit has a controllable impedance, a timing section with a relatively long time constant, and operational amplifiers with FET inputs.
REFERENCES:
patent: 3846697 (1974-11-01), Cila et al.
Dipl.-Phys. August Petersen "Magnetoresistive Sensoren IM Kfz." Elektronik 10/17.5 1985, pp. 99 to 101.
Eisenzopf Reinhard J.
Snow Walter E.
Standard Elektrik Lorenz Aktiengesellschaft
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