Apparatus and methods for detecting wet and icy conditions

Details Apparatus and methods for detecting wet and icy conditions Apparatus and methods for detecting wet and icy conditions

G - Physics

01

R

340/139, 26/201

G01R 27/02 (2006.01) G01N 27/04 (2006.01) G08B 19/02 (2006.01)

Patent

CA 1326518

Abstract of the Disclosure Apparatus that detects the presence and condition of precipitation on the surface of a pathway The apparatus has a block of electrically insulative material adapted to be embedded in the pathway with a top surface exposed to precipi- tation. A sensor is embedded in the block for sensing a physical property of the precipitation to produce a sensor output which is also influenced by a depth of the precipita- tion. Part of the top surface of the block has a well that is generally curved in outline above the sensor for gathering precipitation for the sensor. Advantageously, the influence of precipitation depth on the sensor is diminished. Other apparatus and methods are also disclosed.

613060

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