Generator for generating a rotational signal in accordance with

Details Generator for generating a rotational signal in accordance with Generator for generating a rotational signal in accordance with

1982-07-16

1985-06-25

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

324174, 310168, G01B 714, G01P 348

Patent

active

045256705

ABSTRACT:
A magnetic member preferably comprising an amorphous metal material is mounted adjacent a rotatable member carrying at least one permanent magnet having N and S poles alternating around its circumference. The alignment of N and S poles with opposite end portions of the amorphous metal will decrease the saturation magnetic flux density of the amorphous metal to thereby alter the impedance of at least one electrical coil surrounding the amorphous material. The impedance of the amorphous material will thus modulate during rotation of the rotatable member at a frequency proportional to the frequency of rotation.

REFERENCES:
patent: 3293636 (1966-12-01), Dunne
patent: 4380928 (1983-04-01), Iwasaski

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