Capacitive sensor for detecting surface condensation

  • US 6,614,241 B2
  • Filed: 03/28/2001
  • Issued: 09/02/2003
  • Est. Priority Date: 03/28/2000
  • Status: Expired due to Fees
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First Claim
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1. A capacitive sensor for detecting surface condensation, comprising:

  • a carrier;

    a metal layer applied to the carrier to form an interdigital structure;

    a passivation layer formed over the metal layer; and

    a hydrophilic layer being applied over the passivation layer through dipping or spraying, wherein the hydrophilic layer increases a surface tension of the passivation layer such that a uniform water film formation is achieved.

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