Humidity sensor

Details Humidity sensor Humidity sensor

1998-08-20

1999-07-13

Williams, Hezron

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73 3105, 73 2905, 738665, G01M 1900, F16L 5510, G01F 1500, G01N 122

Patent

active

059229390

ABSTRACT:
A highly accurate relative humidity sensing device includes a sensory unit having a humidity sensitive capacitor which has a capacitance which changes as a function of relative humidity. The sensor unit is housed in a tubular unit which is inserted through an aperture into the environment to be measured which is typically a duct or the like. The unit is constructed for easy removability. A housing having a central aperture is bolted to the duct and the tube containing the sensor is inserted through the aperture into a hole drilled into the sidewall of the duct. The cylinder holding the sensor is grasped by a releasably detachable securing structure. By releasing the securing structure, the cylinder may be withdrawn from the duct for replacement of the sensor.

REFERENCES:
patent: 1100171 (1914-06-01), Brown
patent: 1455263 (1923-05-01), Oberfell
patent: 2412782 (1946-12-01), Palmer
patent: 2663190 (1953-12-01), Ilgenfritz
patent: 2852739 (1958-09-01), Hansen
patent: 2943488 (1960-07-01), Strobel et al.
patent: 3243674 (1966-03-01), Ebert
patent: 3287974 (1966-11-01), Ciemochowski
patent: 4001758 (1977-01-01), Esper et al.
patent: 4253336 (1981-03-01), Pietzuch
patent: 4362580 (1982-12-01), Kane et al.
patent: 4373392 (1983-02-01), Nagamoto
patent: 4558595 (1985-12-01), Kompelien
patent: 4660407 (1987-04-01), Takami et al.
patent: 5014908 (1991-05-01), Cox
patent: 5296819 (1994-03-01), Kuroiwa et al.
patent: 5317274 (1994-05-01), Nakagawa et al.
patent: 5385060 (1995-01-01), Wang
patent: 5410920 (1995-05-01), Westwick
patent: 5450765 (1995-09-01), Stover
patent: 5612499 (1997-03-01), Andrew et al.
patent: 5677476 (1997-10-01), McCarthy et al.

Affiliated with

Also associated with

Rating

Humidity sensor 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Humidity sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2277162