capacitance hygrometer

https://doi.org/10.1351/goldbook.C00792
@H02914@ using the capacitance variations of a capacitor whose dielectric medium consists of the gas or of a material in contact with this gas.
Source:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2195 [Terms] [Paper]