Moisture detection element, exhaled gas detection device, exhaled air inspection system, and dew condensation removal method

摘要

There is provided a moisture detection element including: an insulating portion composed of an insulating material; a voltage-applied electrode to which a voltage is applied; a detection electrode configured to output a voltage signal corresponding to a current flowing through an electric path including water molecules adhering to the surface of the insulating portion in accordance with the voltage applied to the voltage-applied electrode; and a conductive film that is conductive and electrically insulated from the voltage-applied electrode and the detection electrode, in which the voltage-applied electrode, the detection electrode, and the conductive film are disposed on the insulating portion. When dew condensation is detected, a DC voltage is applied to the voltage-applied electrode.