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Measuring platform for weight and brake system monitoring

  • US 6,112,600 A
  • Filed: 02/11/1998
  • Issued: 09/05/2000
  • Est. Priority Date: 02/25/1997
  • Status: Expired due to Fees
First Claim
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1. A measuring platform to be recessed in road surfaces comprising a base plate and a cover plate, between the base plate and the cover plate at least two supporting points spaced over the width of the cover plate in the direction of travel and a number of supporting points arranged over the platform length transverse to the roadway, and at least two spaced-apart piezoelectric crystal plates separating the base plate and the coverplate at the two supporting points spaced in the direction of travel and measuring a shear effect when the speed of a wheel changes obtaining a shear force component between the two plates.

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