METHOD AND APPARATUS FOR AUTOMATICALLY COMPENSATING FOR VARIATIONS IN SENSOR RESPONSE CHARACTERISTICS OR EQUIVALENT

摘要

The invention relates to a method and a device for compensating the variations in the characteristic curve of a measurement sensor in response to input stimuli relative to that of an ideal reference sensor. COMPLETE RANGE OF STIMULI OF INPUT COMPRISING TWO DIFFERENT VALUES DETERMINED Y1 AND Y2 STIMULI. / P P According to the method, DEPTHS OF X1 AND X2X1 ARE DETERMINED AND MEMORIES OF OUTPUT SIGNALS OF MEASURING SENSORS 1 AND REFERENCE 3 IN RESPONSE TO THE FIRST AND SECOND STIMULI OF INPUT Y1, Y2, THEN STORED DIFFERENCES ARE APPLIED TO THE OUTPUT OF THE MEASURING SENSOR 11 DURING ITS FURTHER USE, IN SUCH A WAY TO SUPERIOR THE CURVES CHARACTERISTICS OF RESPONSE OF THE MEASUREMENT SENSOR AND REFERENCE SENSOR TO A FIRST POINT CORRESPONDING TO THE FIRST STIMULUS; Then the characteristic curve is rotated around this first point to superimpose the two curves in a second point corresponding to the second point. / P p APPLICATION TO THE THERMO-COUPLES. / P