This report is one of a series of reports associated with the Cold Weather Transit Technology (CWTT) program. The objective of the program is to develop new and more effective solutions for cold weather problems experienced by urban mass transportation systems. This report presents results on detection of the initial formation of ice or frost on the third rail of transit rail systems. The study involves the measurement of the noise component of the electric current to the transit vehicle. These measurements would occur prior to frost formation and enable operators and other system personnel to prepare for the effects of this environmental change. This report includes a discussion of laboratory data and its analysis using fast fourier transform techniques; and data obtained at the Vought Corporation 18 ft. rotating drum facility, which represents a first scale-up attempt to an operational detector.


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    Title :

    Cold Weather Transit Technology Program. Volume 9. Ice Formation Precursor Research


    Contributors:
    Y. F. Huang (author) / J. J. Uhran (author) / R. S. Jacobsen (author)

    Publication date :

    1984


    Size :

    98 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English