Integral humidity sensor/heater configurations

Details Integral humidity sensor/heater configurations Integral humidity sensor/heater configurations

1980-02-25

1982-03-23

Albritton, C. L.

Electrical resistors

Resistance value responsive to a condition

Gas, vapor, or moisture absorbing or collecting

252520, 252521, 338309, 422 98, H01L 700

Patent

active

043215777

ABSTRACT:
A humidity sensitive device is formed of a humidity sensitive material comprised of a magnesium aluminate spinel and titania material. The humidity sensitive device includes various means for applying heat to the humidity sensitive material to purge the humidity sensitive material of foreign substances and also thereby to restore or rejuvenate the characteristics of the humidity sensitive material.

REFERENCES:
patent: 2806991 (1957-09-01), White
patent: 3479257 (1969-11-01), Shaver
patent: 3839616 (1974-10-01), Risman
patent: 3926858 (1975-12-01), Ichinose et al.
patent: 3961301 (1976-06-01), Fraioli
patent: 4015230 (1977-03-01), Nitta et al.
patent: 4080564 (1978-03-01), Nitta et al.
patent: 4086556 (1978-04-01), Nitta et al.
patent: 4110260 (1978-08-01), Yamamoto et al.
Birox Resistor Compositions 9318 and 9319, Electronic Materials 5/76.
R. C. Evans, An Introduction to Crystal Chemistry, Cambridge University Press, Second Edition, 1964--p. 173.

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