Contiguously matched magnetic sensor array and magnetic media fo

Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material

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Details

32420721, 32420712, 209562, 235449, G01P 342, G07F 704

Patent

active

057640548

ABSTRACT:
Apparatus for detecting a magnetic pattern having a plurality of spaced magnetic areas includes an array of magnetic sensors which are configured and spaced from each other to detect the spaced magnetic areas of a magnetic pattern brought into contiguity with the array. Electrical circuitry connects the array of magnetic sensors in series and a single source is provided for supplying current to the array of magnetic sensors through the electrical circuitry.

REFERENCES:
patent: 4518919 (1985-05-01), Ishida
patent: 4551676 (1985-11-01), Amemiya et al.
patent: 5096038 (1992-03-01), Potter et al.
patent: 5115643 (1992-05-01), Hayata et al.
patent: 5327077 (1994-07-01), Honda
patent: 5358088 (1994-10-01), Barnes et al.

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