Fiber-optic moisture sensor for composite structures

Details Fiber-optic moisture sensor for composite structures Fiber-optic moisture sensor for composite structures

1978-04-24

1980-09-09

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

73 73, 356133, G02B 514

Patent

active

042219620

ABSTRACT:
A radiation carrier such as an optical glass fiber is embedded in a body of material such as a laminated composite panel with the free ends of the fiber extending to or beyond the edges of the structure so that radiation such as light can be directed through one end of the carrier and measured at the other end thereof, to monitor and detect the presence of moisture in the interior of the structure.

REFERENCES:
patent: 2359787 (1944-10-01), Peters et al.
patent: 2740032 (1956-03-01), Bouyoucos
patent: 2977842 (1961-04-01), Duke
patent: 3433570 (1969-03-01), Hansen
patent: 3528278 (1970-09-01), Sterling
patent: 3540025 (1970-11-01), Levin et al.
patent: 3550439 (1970-12-01), Hollies et al.
patent: 3680364 (1972-08-01), Carrier

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