A Physical Understanding of Solid State Humidity Sensors Research Laboratories General Motors Corporation Warren, MI

Format:

Conference/Event

Author/Creator:

Fleming, William J., author.

Conference Name:

SAE International Congress & Exposition (1981-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1981

Summary:

In an effort to produce a humidity sensor suitable for automotive applications, an investigation was made of solid state sensors which change electrical impedance as a function of humidity. Physical models are presented which describe operation of the sensors. Measured impedance characteristics of humidity sensors are explained in terms of the following mechanisms: (1) physical adsorption of water vapor, (2) dissociation of water molecules, (3) electrical conduction by means of a Grotthuss chain reaction, (4) electrostatic fields associated with surface-layer complexes, and (5) electrolytic conduction inside capillary pores

Notes:

Vendor supplied data

Publisher Number:

810432

Access Restriction:

Restricted for use by site license