Method for drift elimination in sensors

Details Method for drift elimination in sensors Method for drift elimination in sensors

1994-02-22

1995-06-27

Williams, Hezron E.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01F 2500

Patent

active

054269695

ABSTRACT:
A method is described which enables full drift elimination in sensors, whose sensitivity to a quantity S depends on their relative orientation to the medium in which S is measured. The method defines each measurement as the difference of the results of two partial measurements, said partial measurements being obtained by said sensor in succession and with two different relative orientations between sensor and medium, said relative orientations corresponding to two distinct sensitivities to S. This Alternating Direction Method applies in particular to flow sensors, and enables accurate long-time volume measurement.

REFERENCES:
patent: 3996799 (1976-12-01), van Putten
patent: 4548077 (1985-10-01), van Putten
Full additive drift elimination in vector sensors using the Alternating Direction Method (ADM), M. J. A. M. van Putten, M. H. P. M. van Putten, A. F. P. van Putten. submitted to Sensors & Actuators. 24 Dec. 1993.

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