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Device for detecting liquid amount in a vessel

  • US 4,562,732 A
  • Filed: 04/27/1983
  • Issued: 01/07/1986
  • Est. Priority Date: 04/28/1982
  • Status: Expired due to Fees
First Claim
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1. A device for detecting an amount of liquid in a vessel, said device comprising:

  • torsion structure means connected to said vessel for allowing torsion displacement by the weight of said vessel and the liquid in said vessel;

    means for detecting a torsion displacement of said torsion structure means and generating signals representative of said torsion displacement; and

    an electronic unit for receiving said signals from said detection means;

    wherein said electronic unit comprises;

    means for generating a pulse width signal corresponding to the amount of said liquid on the basis of said signals from said detection means;

    means for detecting the pulse width by generating a signal indicating the number of pulses proportional to the pulse width of said generated pulse width signal;

    means for generating timing pulses having a predetermined interval; and

    average value calculation and display means for calculating average values at predetermined intervals from the values corresponding to the number of pulses of the signal from said pulse width detection means by using said generated timing pulses, and for displaying said calculated values as an indication of said amount of liquid.

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