The measurement of vehicle magnetic moments and the results from use of a fluxgate magnetic sensor to actuate a lighting system from the magnetic fields of passing vehicles is report. A typical U.S. automobile has a magnetic moment of about 200 A-m squared (Ampere-meters squared), for a school bus it is about 200 A-m squared. When the vehicle is modeled as an ideal magnetic dipole with a moment of 200 A-m squared, the predicted results from an analysis of the sensor-vehicle geometry agree closely with observations of the system response to automobiles.

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  • Corporate Authors:

    Institute of Electrical and Electronics Engineers (IEEE)

    3 Park Avenue, 17th Floor
    New York, NY  United States  10016-5997
  • Authors:
    • Marshall, S V
  • Publication Date: 1978-5

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Filing Info

  • Accession Number: 00183838
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Dec 12 1981 12:00AM