metsystem for electrically bestemma temperature at a number of different stellen.

摘要

A method of measuring temperature utilizing resistance temperature detectors (RTDs) is disclosed. A number of RTDs are sequentially scanned and their resistance values are processed by zeroing and linearizing circuit techniques so that an output signal directly proportional to the temperature of each RTD is obtained. The scanning technique incorporates constant current excitation so that complete linearization of the resistance versus temperature function is made possible with very few high tolerance components.