Humidity sensing device

Details Humidity sensing device Humidity sensing device

1977-07-12

1979-04-24

Queisser, Richard C.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73 73, G01W 102

Patent

active

041505700

ABSTRACT:
A multiple laminate humidity sensing device for visually indicating changes in relative humidity including a moisture impermeable transparent cover layer; an indicator layer including a transparent carrier material and an inorganic salt composition dispersed in the transparent carrier material that provides a known visible color response to changes in relative humidity to which the indicator layer is exposed; and a moisture permeable reflective layer behind the indicator layer so that light passing through the cover layer and the indicator layer is reflected back through the indicator layer and the cover layer so as to be readily visible from that side of the cover layer opposite the indicator layer.

REFERENCES:
patent: 2787238 (1957-04-01), Luce
patent: 3861213 (1975-01-01), Parker
patent: 3893340 (1975-07-01), Parker
patent: 3898354 (1975-08-01), Parker
patent: 3965742 (1976-06-01), Parker
patent: 4070912 (1978-01-01), McNaughtan

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1985999