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Differential particulate detection system for electronic devices

  • US 20040189313A1
  • Filed: 03/27/2003
  • Published: 09/30/2004
  • Est. Priority Date: 03/27/2003
  • Status: Active Grant
First Claim
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1. An apparatus for differentially detecting a particulate concentration at an air intake and an air exhaust of an electronic device, the apparatus comprising:

  • a first particulate sensor positioned in proximity to the air intake;

    a second particulate sensor positioned in proximity to the air exhaust;

    a comparator for comparing a first particulate concentration from the first particulate sensor against a second particulate concentration from the second particulate sensor.

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