Apparatus and method for remote detection of ice or other...

Details Apparatus and method for remote detection of ice or other... Apparatus and method for remote detection of ice or other...

G - Physics

01

V

G01V 8/10 (2006.01) B64D 15/20 (2006.01) G01V 8/20 (2006.01) G08B 19/02 (2006.01)

Patent

CA 2171581

An apparatus and method are provided for remotely detecting ice on a polarization preserving surface. A target location on the surface is irradiated with two cross-polarized beams of coherent light. A determination is then made as to whether the speckle patterns from each of the two beams interfere with one another. If interference of the speckle patterns from the two beams is detected, ice or some other birefringent material is said to be present on the surface.

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