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Capacitive pressure sensor

  • US 20080202251A1
  • Filed: 02/27/2007
  • Published: 08/28/2008
  • Est. Priority Date: 02/27/2007
  • Status: Abandoned Application
First Claim
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1. A capacitive pressure sensor, comprising a first capacitor electrode and a second capacitor electrode spaced from the first capacitor electrode, said first and second capacitor electrodes being resiliently brought closer together under the action of a compressive force acting on the pressure sensor,wherein said capacitive pressure sensor comprises a laminated arrangement with a first flexible, electrically insulating carrier film carrying said first capacitor electrode, a second flexible, electrically insulating carrier film carrying said second capacitor electrode and a flexible, electrically insulating spacer film sandwiched between said first and second carrier films, said spacer film having a through-hole or recess therein, with respect to which said first and second capacitor electrodes are arranged opposite one another in such a way that said first and second electrodes are brought closer together by resilient bending of said first and/or second carrier film into said through-hole or recess under the action of a compressive force acting on the pressure sensor.

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