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Tilt angle detection device

  • US 4,628,612 A
  • Filed: 10/01/1985
  • Issued: 12/16/1986
  • Est. Priority Date: 11/24/1984
  • Status: Expired due to Term
First Claim
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1. A level detector comprising:

  • a first fluid;

    a second fluid immiscible with said first fluid and having a dielectric constant different from said first fluid dielectric constant;

    means for containing said first and second fluids;

    a first capacitor having said first and second fluids as dielectric material, the amount of said first fluid acting as dielectric material being related to the angle of said containing means;

    a second capacitor having said first and second fluids as dielectric material, the amount of said first fluid acting as dielectric material being related to the angle of said containing means in a manner inverse to said first capacitor;

    a third capacitor having said first and second fluids as dielectric material in a manner independent of the angle of said containing means;

    a fourth capacitor having only said second fluid as dielectric material; and

    means for generating a signal related to the angle of said containing means based upon the capacitance of said first, second, third, and fourth capacitors.

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