Statistical-mode sensor for fiber optic vibration sensing uses.

  title={Statistical-mode sensor for fiber optic vibration sensing uses.},
  author={W. B. Spillman and Brad Kline and Lucy Maurice and P. L. Fuhr},
  journal={Applied optics},
  volume={28 15},
A method of sensing vibration using the detection of changes in the spatial distribution of energy in the output of a multimode optical fiber has been demonstrated. Two implementations of the sensor have been built and tested. The first implementation involved simple optical processing of the output fiber speckle pattern using spatial filtering. The second implementation involved projecting the pattern on a CCD array and digitally processing observed changes in the intensity distribution. A… CONTINUE READING
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