Method and apparatus for compensating a sensor

Details Method and apparatus for compensating a sensor Method and apparatus for compensating a sensor

1978-01-30

1980-04-15

Morrison, Malcolm A.

Boots, shoes, and leggings

340347CC, 324130, G05B 100

Patent

active

041986776

ABSTRACT:
A sensor is compensated through the use of a closed loop comprising a digital processor, a digital-to-analog converter and a comparator having inputs coupled to the converter and the sensor and an output fed back to the digital processor. During calibration of the sensor, a signal from the sensor is tracked by the digital processor and at least one of the values characteristic of the sensor signal is stored in the digital processor. The stored value is used as or in the computation of a reference by the digital processor which is compared with the sensor signal during operation of the sensor to appropriately compensate the sensor for gain, offset, drift or degradation in the quality of the sensor signal.

REFERENCES:
patent: 3673392 (1972-06-01), Holm
patent: 3811125 (1974-05-01), Schumann
patent: 3824588 (1974-07-01), Vermillion
patent: 3878373 (1975-04-01), Blum
patent: 3940597 (1976-02-01), DiMatteo
patent: 4014023 (1977-03-01), Kirkland
patent: 4031630 (1977-06-01), Fowler
patent: 4043756 (1977-08-01), Sommervold
patent: 4088951 (1978-05-01), Fletcher et al.
patent: 4099240 (1978-07-01), Rode et al.

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