STP1031

    A Closed-Loop Calibration Procedure for a British Pendulum Tester

    Published: Jan 1990


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    Abstract

    Considerable concern among the users of the British pendulum tester has resulted from the lack of agreement among devices. One of the sources of the inconsistency appears to be a complex, cumbersome, and ineffective calibration procedure. In this paper, a new closed-loop calibration procedure is proposed. The method uses an aluminum alloy surface as the calibration standard. The tester is calibrated by adjusting the slider spring tension until the result obtained on the standard surface falls within prescribed limits. The pendulum arm was redesigned to allow for easy adjustment of the spring tension. The proposed calibration procedure is simple enough to be conducted daily or before each new series of measurements, as necessary. The accuracy of the results obtained with the new procedure is evaluated. The results of the laboratory experiments as well as the results of the computer simulation of the British pendulum tester are presented.

    Keywords:

    skid resistance, friction, surface characteristics


    Author Information:

    Kulakowski, BT
    Associate professor, professor, and graduate student, The Pennsylvania State University, University Park, PA

    Henry, JJ
    Associate professor, professor, and graduate student, The Pennsylvania State University, University Park, PA

    Lin, C
    Associate professor, professor, and graduate student, The Pennsylvania State University, University Park, PA


    Paper ID: STP23356S

    Committee/Subcommittee: E17.21

    DOI: 10.1520/STP23356S


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