Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1988-08-31
1989-09-05
Willis, Davis L.
Optics: measuring and testing
By particle light scattering
With photocell detection
250227, 356354, G01B 902
Patent
active
048632708
ABSTRACT:
A multi-mode fiber optic sensor and method for optically sensing a physical perturbation includes a multi-mode optical fiber segment that accepts coherent monochromatic radiation from a suitable source. As the radiation is propagated in the fiber the various modes form a complex interference pattern that changes in response to a physical perturbation of the fiber. A detector provides an output signal to a signal processor that analyzes the signal as a function of the change in intensity to provide an information signal that is functionally related to the perturbation.
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Koren Matthew W.
Lovercheck Dale R.
Simmonds Precision Products Inc.
Willis Davis L.
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