Abstract: An enclosure for a film-type humidity sensing element includes identical enclosure members which snap together to form an enclosure with the humidity sensing element sandwiched between the members, each of the members including a lead mounting area on its inner surface for mounting the mounting ends of electrical leads, the leads being connected to contact portions of the humidity sensing element interiorly of the enclosure by a metal-filled conductive adhesive which is introduced into the enclosure through access openings after the enclosure members have been assembled together. The enclosure is adapted for mounting on a circuit board in both horizontal and vertical orientations and independently of the lead structure of the sensor assembly.

Abstract: A capacitance elastomeric pressure sensor includes top and bottom mounting plates arranged to support a pair of electrode layers. The first electrode layer is supported on the upper surface of a dielectric disc held by an upper mounting plate. The second electrode layer is located beneath the disc and includes a conductive elastomeric layer overlying an elastomeric support layer. In the preferred embodiment, the elastomer is a silicone elastomer and the conductive layer is formed by admixing a conductive carbon powder with the silicone. The sensor is particularly effective in sensing pressure changes in this low range, e.g. 0-1 inch of water. In the most preferred embodiment the elastomeric layer is prestrained for temperature compensation.