Method and apparatus for measuring resistance, particularly for temperature measurement

摘要

A method and apparatus for measuring resistance. The apparatus comprises an analogue-to-digital converter 32 having a pair of reference input terminals 34 connected to a reference resistor Rf and a pair of input terminals for detection 36 connected to a sensor 12 whose resistance Rc is to be measured. The digital signal at the output 38 of the converter 32 represents the ratio of the resistances and can be used to display either the value of the resistance to be measured or the parameter whose variation has caused the variation in resistance. Application to temperature measuring apparatuses. <IMAGE>