ICE-ROAD DETECTION SYSTEM USING OPTICAL FIBER SENSOR

It is important to detect ice on the road and to inform drivers of ice locations. Because road surface temperature is a primary factor in freezing, road temperature sensing has been used for ice detection. Conventional temperature sensors, such as thermocouple, are point measure sensors and require many sensors to detect ice over long roads. For practical and economic reasons, though, only a few temperature sensors are installed at typical points on the road. Recently, a distribution temperature sensor using an optical fiber was developed. This sensor is based on Raman scattering in the optical fiber and measures a temperature distribution of the optical fiber itself from one end of the optical fiber. The maximum measuring distance of the sensor is 30 km with sampling distance of 1 m, and the accuracy is within 1 deg C. This performance shows that the optical fiber distributed temperature sensor is ideally suited for ice detection over road. Before application, the following subjects were examined: 1) optical fiber cable construction; 2) optical fiber cable installation; 3) durability of optical fiber cable; and 4) relationship between road surface temperature and measured temperature. The results of these studies are reported in this paper.

  • Supplemental Notes:
    • Five volumes of papers and one volume of abstracts comprise the published set of conference materials.
  • Corporate Authors:

    VERTIS

    TORANOMOM 34 MORI BUILDING 1-25-5
    TORANOMON, MINATOKU, TOKYO 105  Japan 
  • Authors:
    • Nakamura, M
    • Imacho, N
    • Osawa, S
    • KATO, H
  • Conference:
  • Publication Date: 1995-11

Language

  • English

Media Info

  • Pagination: p. 468

Subject/Index Terms

Filing Info

  • Accession Number: 00721122
  • Record Type: Publication
  • Report/Paper Numbers: Volume 1
  • Files: TRIS
  • Created Date: May 24 1996 12:00AM