Humidity sensor and a humidity detection circuit using the humid

Details Humidity sensor and a humidity detection circuit using the humid Humidity sensor and a humidity detection circuit using the humid

1979-06-20

1982-05-18

Hix, L. T.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

338 35, 428913, 328 4, H01H 3542

Patent

active

043307183

ABSTRACT:
A humidity sensor as well as a humidity detection circuit are disclosed, the former employing a humidity sensitive material the electric resistance of which varies in response to the variance of humidity in an atmosphere and the latter employing such humidity sensitive material. The humidity sensor comprises a base plate made of aluminum or the like with a humidity sensitive material formed on the base plate so as to form a film of a high molecular polymer unit which contains a reactive cationic monomer unit, is capable of detecting humidity over a wide range shows little variance in nature in a high humidity atmosphere of organic gas, and has a long life. The humidity detection circuit comprises an oscillation circuit, a pair of electrodes which are connected by means of the humidity sensor and to one of which is supplied the output of the oscillation circuit as an input, and an amplifier circuit which is connected to the other one of the pair of electrodes. The humidity detection circuit is advantageous in that it can be used for a long period of time without varying the characteristics thereof.

REFERENCES:
patent: 3168829 (1965-02-01), Nelson
patent: 3671913 (1972-06-01), Mamiya
patent: 3873927 (1975-03-01), Overall
patent: 3891958 (1975-06-01), Wakabayashi
patent: 4092635 (1978-05-01), Warner

Affiliated with

Also associated with

Rating

Humidity sensor and a humidity detection circuit using the humid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Humidity sensor and a humidity detection circuit using the humid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Humidity sensor and a humidity detection circuit using the humid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-488075