Continuous strain measurement along a span

Details Continuous strain measurement along a span Continuous strain measurement along a span

1987-07-28

1988-03-29

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356 32, 73800, G01N 300

Patent

active

047345772

ABSTRACT:
A fiber optic load measuring system, and method of constructing the same, are disclosed which comprises a light source, a fiber optic attenuator, a photodetector, and a signal processor. The fiber optic attenuator was formed to have a curved portion along the length thereof disposed in low transfer relation with the surface where the load is to be measured. The signal processor is adapted to receive signals from the photodetector and measure variations attributable to the application of a load on the surface. The processor is further adapted to linearly translate the detected variations to compute deformation of the curved portion in response to an applied load.

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S. A. Kingsley of Batelle, Columbus Laboratories, Columbus, Ohio 43201 Sep. 7, 1983.

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