Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2008-04-15
2008-04-15
Hofsas, Jeffery (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C073S170260, C250S227170, C385S012000, C385S037000, CD99S099000
Reexamination Certificate
active
11082362
ABSTRACT:
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.
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Kato Hajime
Kawaguchi Hisaaki
Ozawa Yoshihiro
Shinoda Katsunori
Suzuki Mitsuo
Hofsas Jeffery
Labbees Edny
Narita International Airport Corporation
Sanki Engineering Co., Ltd.
Winstead PC
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