Self-calibration of an NDIR gas sensor

Details Self-calibration of an NDIR gas sensor Self-calibration of an NDIR gas sensor

1991-09-19

1994-09-13

Cosimano, Edward R.

Boots, shoes, and leggings

73 2323, 364550, 36457103, G06F 1520

Patent

active

053474740

ABSTRACT:
Some cyclic variables include within each cycle a value that can be determined extrinsically. In such case, the sensed value may differ from the known value by an amount that is a combination of long-term drift of the sensor and random measuring error. The drift component can be evaluated and eliminated by the following method. Once each cycle, for a number of cycles, the sensor measures the variable at a time when its value should equal the extrinsically-known value. The differences are plotted versus time, and a best-fitting straight line is determined, which indicates the drift. Throughout the next cycle as the variable is continuously sensed, the drift determined from the best-fitting straight line is continuously applied to correct the sensed value.

REFERENCES:
patent: 3329005 (1967-07-01), Levy et al.
patent: 3681577 (1972-08-01), Gasiunas
patent: 3797300 (1974-03-01), Sato
patent: 4875169 (1989-10-01), Synovec et al.
patent: 4927532 (1990-05-01), Pospisil et al.
patent: 4941101 (1990-07-01), Crilly
patent: 5098547 (1992-03-01), Bryan et al.

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