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Non-intrusive fluid measuring system

  • US 4,296,472 A
  • Filed: 10/01/1979
  • Issued: 10/20/1981
  • Est. Priority Date: 10/01/1979
  • Status: Expired due to Term
First Claim
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1. A fluid meter system with a fluid tank for use in fluid measurements such as consumed fluid, remained fluid, or flow rate comprising:

  • (a) a capacitive probe including first and second electrodes, means for securing said electrodes in a spaced-apart relationship and means for securing said electrodes in said fluid tank,(b) circuit means electrically connected to said first and second electrodes for providing signal pulses representative of the capacitance of said probe,(c) microprocessor means for receiving and processing said signal pulses including;

    (i) program memory storage means,(ii) data memory storage means,(iii) a central processing unit operable in accordance with a program of said program memory storage means for calculating from said received signal pulses data signals corresponding to said fluid measurements, and(iv) means for storing said fluid measurements in said data storage means, and(d) means for outputting said stored data signals for providing an indication of same.

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