Compensation of sensor voltage for reference potential variation

Details Compensation of sensor voltage for reference potential variation Compensation of sensor voltage for reference potential variation

1978-09-07

1979-12-11

Myhre, Charles J.

Internal-combustion engines

Noncompression

123119EC, 60276, 60285, F02B 308, F01N 308

Patent

active

041777700

ABSTRACT:
An improved electrical system particularly suitable for use in a motor vehicle. The improvement provides compensation of a signal used in association with an electronic circuit. Such compensation is made necessary because of variation in the potential that occurs at a source of electrical energy in the system relative to the sensor reference potential. The variation in potential results from currents flowing through a conductor interconnecting the sensor and the energy source, which current many be of varying character due to the operation of other devices associated with the system. Compensation is achieved with a differential amplifier coupled both to the energy source and to the sensor.

REFERENCES:
patent: 3948081 (1976-04-01), Wessel et al.
patent: 4019474 (1977-04-01), Nishimiya et al.
patent: 4117815 (1978-10-01), Ikeura
patent: 4120269 (1978-10-01), Fujishiro
patent: 4140085 (1979-02-01), Rabus et al.

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