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Apparatus and method for remotely sensing hydrocarbons and other pollutants in vehicle emissions

  • US 20030089854A1
  • Filed: 11/09/2001
  • Published: 05/15/2003
  • Est. Priority Date: 11/09/2001
  • Status: Abandoned Application
First Claim
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1. An apparatus for remotely sensing the amount of pollutants in the exhaust plume of a vehicle, comprising:

  • an ultraviolet light source for propagating ultraviolet light through the exhaust plume;

    an output lens for collimating the ultraviolet light from the ultraviolet light source before it propagates through the exhaust plume; and

    an ultraviolet light spectrometer for receiving said ultraviolet light after it has passed through the exhaust plume of a vehicle and producing a hydrocarbon signal representative of the amount of absorption of the ultraviolet light by selected hydrocarbons in the vehicle exhaust plume.

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