Stress and temperature mapping using an array of optical fibers

Details Stress and temperature mapping using an array of optical fibers Stress and temperature mapping using an array of optical fibers

1987-12-18

1989-04-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250231R, 374162, H01J 516, G01K 1100

Patent

active

048209171

ABSTRACT:
A fiber optic core cladded with a material having an index of refraction lower than the core material and light sensing means located along the length of the core and cladding material. The sensing means receives light which escapes into the cladding from the core when the fiber optic is stressed, and produces an output in response to light received. Measurement of the output provides both magnitude and location information with respect to stresses in the fiber optic. A measurement of fiber temperature by detection of dark current, which is the function of temperature, is effected in pixels of the sensing means located in intimate contact with the fiber. An accurate measurement of stress in the fiber is made by subtracting dark current measurements from stress measurements when the fiber optic is excited with light.

REFERENCES:
patent: 4188087 (1980-02-01), D'Auria et al.
patent: 4477725 (1984-10-01), Asawa
patent: 4654520 (1987-03-01), Griffiths

Affiliated with

Also associated with

Rating

Stress and temperature mapping using an array of optical fibers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stress and temperature mapping using an array of optical fibers , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stress and temperature mapping using an array of optical fibers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-668775