Complementary linear magnetic position sensor

Details Complementary linear magnetic position sensor Complementary linear magnetic position sensor

1994-06-21

1997-03-04

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420722, 32420724, G01B 714, G01B 520, G01B 700

Patent

active

056083173

ABSTRACT:
Linear Hall effect magnetic sensor elements (52, 54) are used in a complementary fashion in a position sensor (50). The oppositely signed signal voltages of the sensor elements are amplified and fed into a microprocessor circuit (66). Deviations from the linearity can be compensated by lookup tables. Temperature changes can be measured and included into the compensation process.

REFERENCES:
patent: 4471304 (1984-09-01), Wolf
"Semiconductors from Allegro," Allegro Microsystems, Inc., 1991, pp. 4-45 to 4-48; 4-86 to 4-87; 4-98 to 4-100; 4-102.

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