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Circumferential orientation of piezoelectric device in tire to improve signal quality

  • US 9,744,818 B2
  • Filed: 11/20/2012
  • Issued: 08/29/2017
  • Est. Priority Date: 11/20/2012
  • Status: Active Grant
First Claim
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1. A method for monitoring one or more parameters of a tire, comprising:

  • mounting a tire mountable apparatus to a tire, the tire mountable apparatus comprising a piezoelectric device having at least one piezoelectric component, the piezoelectric device having length L, the length L being the longest dimension of the piezoelectric device;

    the tire mountable apparatus comprising a plurality of conductive terminals arranged on the piezoelectric device in a generally linear relationship along a line that is within 20°

    of perpendicular to the direction defined by the length L of the piezoelectric device;

    the tire mountable apparatus further comprising a printed circuit board secured to the plurality of conductive terminals, the printed circuit board having a length, the length being the longest dimension of the printed circuit board;

    rotating the tire for one or more revolutions; and

    obtaining a piezoelectric signal generated by the at least one piezoelectric component during rotation of the tire;

    wherein the tire mountable apparatus is mounted to the tire so that the direction of the length L of the piezoelectric device is aligned within 20°

    of the direction of rotation of the tire;

    wherein the printed circuit board is secured to the plurality of conductive terminals such that the length of the printed circuit board is aligned within 20°

    of perpendicular to the direction defined by the length L of the piezoelectric device.

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