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Capacitance type accelerometer for air bag system

  • US 5,350,189 A
  • Filed: 07/24/1992
  • Issued: 09/27/1994
  • Est. Priority Date: 07/24/1991
  • Status: Expired due to Fees
First Claim
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1. A capacitance-accelerometer, comprising:

  • a fixed electrode; and

    a movable electrode being supported by a cantilever at a portion adjacent to said fixed electrode having a gap thereinbetween;

    wherein grooves for reducing air damping are provided on a surface of said movable electrode, andsaid grooves are so arranged that electrode surface areas divided by said grooves are symmetrical with respect to a symmetrical axis parallel to said cantilever.

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