Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1974-04-18
1977-04-12
Queisser, Richard C.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
73355R, G01K 1112, G01J 560
Patent
active
040167615
ABSTRACT:
A temperature probe measures temperature changes of biological tissue while he tissue is being irradiated with microwaves. The temperature probe is completely nonmetallic to minimize perturbation of the microwave field, and the structure of the probe includes a plurality of optic fibers which carry light to and from a reflective liquid crystal film. The liquid crystal is enclosed in a housing at the tip of the probe which is in contact with the biological tissue, and the liquid crystal undergoes changes in absolute reflectance proportional to the temperature changes of the tissue. The optic fibers are gathered in a bundle with a first portion of the bundle transmitting light from a light generation device to the liquid crystal and the remainder of the bundle transmitting reflected light from the crystal back to a photo transistor. The reflected light received by the photo transistor is converted into an electrical signal and displayed as a representation of temperature.
REFERENCES:
patent: 3533399 (1970-10-01), Goldberg et al.
patent: 3591810 (1971-07-01), Jackson
patent: 3651695 (1973-03-01), Brown
patent: 3720623 (1973-03-01), Cartmell et al.
patent: 3789667 (1974-02-01), Porter et al.
Durney Carl
Johnson Curtis
Lords James
Rozzell Thomas C.
Appleman John S.
Beers R.
Queisser Richard C.
Sciascia R.
Sheinbein S.
LandOfFree
Optical temperature probe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical temperature probe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical temperature probe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1274723