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Device and method for monitoring fluids with a detection of cross sectional shape of transmitted beam

  • US 6,043,505 A
  • Filed: 08/06/1998
  • Issued: 03/28/2000
  • Est. Priority Date: 08/06/1998
  • Status: Expired due to Term
First Claim
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1. A device for monitoring the value of a parameter associated with a fluid, the device comprising:

  • a light source providing light;

    a beam conditioner for conditioning the provided light into a beam having a predefined cross sectional shape, said beam conditioner being positioned to direct the beam of light through the fluid;

    a detector being positioned for receiving the beam of light transmitted through the fluid and providing a shape signal representative of the cross sectional shape of the transmitted beam of light;

    an optical polarizer for polarizing the beam of light; and

    a circuit for receiving the shape signal and determining the value of the fluid parameter by comparing the shape signal to the predefined cross sectional shape of the beam of light conditioned by the beam conditioner, said circuit providing an output signal indicative of the value of the fluid parameter.

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