What is the operating principle of Gefran Humidity sensors?
GEFRAN sensors perform an indirect measurement of Relative Humidity. The sensitive element is a capacitor whose dielectric is a hygroscopic (polymeric) material which absorbs the water molecules of the ambient air until being in balance with it. This modification of H2O concentration in the polymer, reversible, involves a variation of the capacitor’s capacity, immediately measured by the processing electronic. The sensors structure and the materials used confer to them metrological qualities and reliability. Moreover the technology used and the very low sensors mass do not disturb the measured environment.
