Volume 17, Issue 3 (May 1989)

    A Note on Dynamic Displacement Measurements Using Hall Effect Sensors

    (Received 4 April 1988; accepted 18 October 1988)

    CODEN: JTEOAD

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    Abstract

    We describe a transducer suitable for dynamic displacement measurements. The transducer uses a commercially available Hall effect sensor and a permanent magnet. Displacements are obtained by measuring the variation in magnetic field strength along the permanent magnet with the Hall effect sensor. To illustrate the capabilities of the transducer, we discuss three application examples. The first example demonstrates the good performance of the transducer under impact loading conditions and for velocities of up to 10 m/s. The other two examples illustrate the usefulness of the transducer for dynamic fracture experiments.


    Author Information:

    Giovanola, JH
    SRI International, Menlo Park, CA

    Kobayashi, T
    SRI International, Menlo Park, CA

    Klopp, RW
    SRI International, Menlo Park, CA

    Gaines, T
    SRI International, Menlo Park, CA

    Arwood, R
    SRI International, Menlo Park, CA


    Stock #: JTE11112J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11112J

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    Author
    Title A Note on Dynamic Displacement Measurements Using Hall Effect Sensors
    Symposium , 0000-00-00
    Committee A06