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Pressure sensor

  • US 4,628,740 A
  • Filed: 10/09/1985
  • Issued: 12/16/1986
  • Est. Priority Date: 11/21/1983
  • Status: Expired due to Fees
First Claim
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1. A pressure sensor comprisinga fixed plate comprising slits through which pressure is introduced;

  • a movable plate disposed opposite to said fixed plate and being subjected to a first pressure and a second pressure;

    a supporting member rotatably supporting said movable plate at two points on a straight line passing through the center of gravity of said movable plate;

    wherein said first pressure is applied on one surface of said movable plate and said second pressure is introduced through said slits in said fixed plate and is impressed on the other side of said movable plate, thereby to rotate said movable plate in accordance with the difference between said first pressure and said second pressure; and

    detecting means for detecting displacement or torque in said movable plate caused by said rotation of said movable plate, and for generating a signal indicative of said displacement or torque corresponding to said difference between said first pressure and said second pressure.

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