Organic vapor detection with liquid crystals

Details Organic vapor detection with liquid crystals Organic vapor detection with liquid crystals

1976-07-16

1977-08-09

McGraw, Vincent P.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

23203LC, 250227, 350160LC, 356209, G01N 2122, G01N 2148

Patent

active

040407497

ABSTRACT:
A device for detecting organic vapors comprising (a) an elongated waveguide having on the surface thereof a sufficient amount of liquid crystal material sensitive to organic vapor to measurably change the light transmitting capability of said waveguide upon contacting said waveguide with said vapor, (b) a light source positioned to transmit light lengthwise through said waveguide, and (c) means for measuring the light exiting from said waveguide. The device is useful in a method for measuring organic vapors comprising the steps of (a) exposing said waveguide to a gas which may contain organic vapor to which said liquid crystals are sensitive, and (b) transmitting light through said waveguide, and (c) detecting the light transmitted in step (b) as a measure of said organic vapor. Waveguides of the device are separately claimed as a subcombination.

REFERENCES:
patent: 3071038 (1963-01-01), Vollmer
patent: 3704060 (1972-11-01), McNaney
patent: 3780307 (1973-12-01), Saeva et al.
patent: 3927977 (1975-12-01), Jacobs

Affiliated with

Also associated with

Rating

Organic vapor detection with liquid crystals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Organic vapor detection with liquid crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic vapor detection with liquid crystals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1225208