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Compact particle sensor

  • US 20050057366A1
  • Filed: 10/05/2004
  • Published: 03/17/2005
  • Est. Priority Date: 12/08/1999
  • Status: Active Grant
First Claim
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1. A compact particle sensor for detecting suspended particles, comprising:

  • a housing providing a test chamber, the housing including at least one opening for admitting particles into the test chamber while simultaneously substantially preventing outside light from entering the test chamber;

    a light source positioned for supplying a light beam in the test chamber;

    a light receiver positioned to receive the light beam supplied by the light source; and

    at least three optical elements positioned to direct the light beam from the light source to the receiver.

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