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Tire temperature measurement apparatus

  • US 4,673,298 A
  • Filed: 07/03/1984
  • Issued: 06/16/1987
  • Est. Priority Date: 07/11/1983
  • Status: Expired due to Fees
First Claim
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1. An apparatus for contactless measurement of the internal temperature of a vehicle tire consisting of rubber-type material and having a surface, comprising:

  • a vehicle tire supporting structure mounted in a vehicle;

    a vehicle tire is aforesaid rotatively mounted on the structure and having an internal temperature;

    a microwave receiver mounted on the vehicle and sensitive to electromagnetic radiation in a waveband in the frequency spectrum 10 to 100 GHz and operative for generating a temperature signal indicative of the internal temperature within a predetermined volume deep within the vehicle tire; and

    a directional antenna mounted on the vehicle in proximity to the tire and having its output coupled to the receiver input and whose aperture and orientation relative to the vehicle tire are such that the antenna is responsive to radiation in the aforesaid waveband emanating substantially from said volume of the vehicle tire and leaving the vehicle tire through the surface of the vehicle tire.

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