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Electromagnetic-type load weighing apparatus

  • US 5,243,146 A
  • Filed: 01/28/1992
  • Issued: 09/07/1993
  • Est. Priority Date: 01/29/1991
  • Status: Expired due to Fees
First Claim
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1. A load weighing apparatus for weighing a load weight on a vehicle, said apparatus comprising:

  • an intervening element provided between a vehicle body frame and a suspension attached to an axle for transmitting the weight of the load to said suspension from said body frame, said intervening element being formed of a magnetic material and having a plurality of bore sections;

    an excitation winding wound about said intervening element through one of said bore sections;

    a measurement winding wound about said intervening element through another one of said bore sections and producing a voltage through a change in permeability of said intervening element when a load is applied to said intervening element from the body frame and the suspension; and

    an electric power source for applying voltage to said excitation winding;

    wherein said excitation winding and said measurement winding are wound in directions extending perpendicularly to each other.

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