Circular, amorphous metal, Hall effect magnetic field sensor wit

Details Circular, amorphous metal, Hall effect magnetic field sensor wit Circular, amorphous metal, Hall effect magnetic field sensor wit

1984-12-07

1987-05-26

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

324208, 338 32H, G01R 3306, G01B 730, H01L 4306

Patent

active

046689141

ABSTRACT:
A magnetic field sensor is disclosed with which the direction of a magnetic field can be determined by using the planar Hall effect. An active layer of the sensor is made of a ferromagnetic amorphous metal which is magnetically isotropic. Thus, the magnetization in the active layer always has the direction of an external magnetic field. The developed planar Hall voltage is a measure of the direction of the magnetic field.

REFERENCES:
patent: 3162805 (1964-12-01), Robertson
patent: 4476454 (1984-10-01), Aboaf et al.
patent: 4517515 (1985-05-01), Reinitz et al.
patent: 4528481 (1985-07-01), Becker et al.
Carver, G. P., "A Corbino Disk . . . in Amorphous Semiconductors", The Review of Scientific Instruments, vol. 43, No. 9, Sep. 1972, pp. 1257-1263.
Grubbs, W. J., "The Semiconductor Hall--Effect Circulator", Electronics, Oct. 10, 1958, pp. 118, 120, 122.

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