ROAD SURFACE AND STRUCTURE SURFACE STATE MONITORING SENSOR

摘要

PROBLEM TO BE SOLVED: To provide an apparatus for monitoring the states of road surfaces and structure surfaces that requires no positional adjustment of the apparatus according to the volume of accumulated snow and is so shaped as to constitute no obstacle even if installed on a road or a runway.SOLUTION: A structure surface state monitoring sensor is provided with an electromagnetic wave transmitting window 3 aligned in position to a road surface or a structure surface, an electromagnetic wave transmitter 1 installed within the window 3 at an inclination to the road surface or the structure surface, and an electromagnetic wave receiver 2 so arranged outside the window 3 on the extension of the axis of inclination that the transmitter 1 and the receiver 2 form a pair with the window 3 in-between.