HUMIDITY SENSING APPARATUS

摘要

A humidity sensing portion is mounted in a gap between a first opposite member and a second opposite member.;Metal joints and dummy joints are provided in the gap between the first opposite member and the second opposite member, and the two opposite members are fixed to each other through the metal joints and the dummy joints. Since only the metal joints and the dummy joints are present in the gap between the two opposite members, gas to be measured is easily introduced into the humidity sensing portion, and the sensing response to the humidity change is improved.

主权项

1. A humidity sensing apparatus comprising:
a first opposite member; a second opposite member; and a humidity sensing portion, wherein an opposite surface of the first opposite member and an opposite surface of the second opposite member are opposite to each other with a gap interposed therebetween, the humidity sensing portion is provided on the opposite surface of the second opposite member, a plurality of electrode portions and a plurality of dummy electrode portions are provided on each of the opposite surfaces, the electrode portions opposite to each other with the gap interposed therebetween are joined to each other through conductive metal joints, and the dummy electrode portions opposite to each other with the gap interposed therebetween are joined to each other through dummy joints formed of the same metal as that of the metal joints.