SENSOR ARRANGEMENT AND METHOD OF BIASING A SENSOR

摘要

A sensor arrangement (30) comprises a sensor (32) having supply contacts (38) and a supply signal generator (34) for generating a supply signal (42) comprising pulses and for applying the pulsed supply signal to the supply contacts such that in use the sensor (32) is biased periodically for a predetermined period (Ton) and a sensor output signal of the sensor is measured during at least some of the predetermined periods. The supply signal may comprise for example a plurality of alternate positive and negative pulses, or a plurality of positives pulses.