Fiber optic pressure sensor

Details Fiber optic pressure sensor Fiber optic pressure sensor

1984-06-25

1987-10-20

LaRoche, Eugene R.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250231P, 350 9629, H01J 516

Patent

active

047016140

ABSTRACT:
An arrangement for an optical fiber pressure sensor is described. This sensor is comprised of two coating layers concentrically clad to and coaxially oriented with an optical fiber. The first coating layer is comprised of a relatively hard optically lossy material which absorbs any light radiating outwardly from the optical fiber. The second coating layer is comprised of a compliant material in which granular particles have been uniformly dispersed. In response to any pressure laterally applied to the sensor, the compliant coating layer imparts micro-bends, onto the optical fiber, which, in turn, couple light from propagating modes to non-propagating modes. As a result, the amplitude (or power) of the light exiting the optical fiber advantageously decreases in response to this pressure.

REFERENCES:
patent: 4342907 (1982-08-01), Macedo et al.
patent: 4530078 (1985-07-01), Lagakos et al.
"Multimode Optical Fiber Displacement Sensor," Applied Optics, vol. 20, No. 2, Jan. 15, 1981, pp. 167-168 by Lagakos et al.
"Fiber Optics Turns to Sensing," High Technology, Jul.-Aug. 1982, pp. 49-56 by Jeff Hecht.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1613875