wich use the fact that humid air conducts more
Conventional sensors determine relative air humidity usingcapacitive measurement technology. For this principle, thesensor element is built out of a film capacitor on differentsubstrates (glass, ceramic, etc.). The dielectric is a polymerwhich absorbs or releases water proportional to the relativeenvironmental humidity, and thus changes the capacitanceof the capacitor, which is measured by an onboard electroniccircuit.
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