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Apparatus for weighing and identifying characteristics of a moving vehicle

  • US 5,260,520 A
  • Filed: 04/02/1992
  • Issued: 11/09/1993
  • Est. Priority Date: 04/02/1992
  • Status: Expired due to Fees
First Claim
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1. Apparatus for weighing and identifying characteristics of a vehicle in motion including vehicle weight comprising, an elongated base having upper and lower surfaces and positionable on a vehicle roadway transverse to a path of a moving vehicle for traverse thereby, a plurality of parallel elongated grooves in the upper surface of said base extending over substantially the length thereof with said grooves being spaced apart from one another and transverse to the path of the vehicle, a plurality of elongated fiber-optic sensing means supported by said base for sensing the weight of the vehicle in motion and with one of said plurality of fiber-optic sensing means in each of said plurality of grooves and extending over substantially the length thereof, light source means located at one end of each fiber-optic sensing means for transmitting light therethrough, a plurality of light receiving means with one of said plurality of light receiving means located at an opposite end of each fiber-optic sensing means for receiving an amount of light transmitted therethrough, and contact grid means in contact with each of the plurality of fiber-optic sensing means for varying the amount of light transmitted though each of said plurality of fiber-optic sensing means when subjected to the weight of a moving vehicle, each of said contact grid means adapted to provide a different level of contact with the fiber-optic sensing means contacted thereby for providing each of the plurality of fiber-optic sensing means with a different sensitivity to vehicle weight so that different amounts of light are transmitted through each of the plurality of fiber-optic sensing means when subjected to the same vehicle weight.

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