Optical fiber water sensor

Details Optical fiber water sensor Optical fiber water sensor

G - Physics

01

N

G01N 21/84 (2006.01) G01M 3/04 (2006.01) G01N 19/10 (2006.01) G01N 21/17 (2006.01) G01N 21/47 (2006.01)

Patent

CA 2153870

An optical fiber water sensor includes a mandrel having a convex or concave shape adjacent to an optical fiber which is adjacent to a water swellable material held in a reservoir. Upon coming in contact with water, the material swells and deforms a section of the optical fiber about a contour defined by the mandrel thus attenuating a signal propagating through the fiber which is detected by an optical detector to indicate the presence of water.

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