G - Physics – 01 – K
Patent
G - Physics
01
K
G01K 11/32 (2006.01) E01C 11/00 (2006.01) E01C 11/24 (2006.01) G01K 5/00 (2006.01) G01N 21/84 (2006.01) G08B 19/02 (2006.01)
Patent
CA 2500050
A road-ice detecting sensor includes: a temperature sensing member of T shape made of a highly heat conductive metal, having a temperature sensor to be grounded onto a road and a fin part erected from this temperature sensor; an optical fiber having an FBG bonded onto the fin part of the temperature sensing member; and a case having a heat insulating member surrounding the fin part of the temperature sensing member and the optical fiber. A plurality of number of the read-ice detecting sensors are installed on a road, connected to one another via an optical cable. Pulsed light is launched into one of the ends of the optical cable, and beams of reflected light from the respective road-ice detecting sensors are received to measure the road temperature.
Kato Hajime
Kawaguchi Hisaaki
Ozawa Yoshihiro
Shinoda Katsunori
Suzuki Mitsuo
Hitachi Cable Ltd.
Narita International Airport Corporation
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Sanki Engineering Co. Ltd.
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