OPTIMIZED LOOK-UP TABLE FOR NON-LINEAR RECONSTRUCTION OF MEASURAND

S. Y. C. Catunda, J-F. Naviner, R. C. S. Freire, G. S. Deep

Abstract

A new procedure for determining the size and the values of a look-up table for reconstructing the measurand values in a measurement system employing a non-linear sensor is presented. This procedure uses the A/D converter quantization error to calculate the table entries. The proposed methodology is illustrated applying it to a thermistor based thermometer.

Keywords

measurement theory, measurand reconstruction, look-up table, signal processing, linear interpolation, piecewise linear approximation

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IMEKO-WC-2000-TC7-P179.pdf

DOI

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IMEKO TC

TC7 - Measurement Science

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