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Hydrologic data acquisition system

  • US 4,720,799 A
  • Filed: 06/19/1985
  • Issued: 01/19/1988
  • Est. Priority Date: 06/19/1985
  • Status: Expired due to Fees
First Claim
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1. A means for recording fluid levels by recording electrical signals comprising:

  • a transducer;

    a transducer interface including a potentiometer and a master pulley on and coupled to the potentiometer, said transducer interface providing a signal that indicates an angular position of the potentiometer;

    a float for identifying a fluid level position;

    a tape having one end attached to the float and extending over the master pulley to a counterweight, means for attaching the other end of the tape to the counterweight;

    an impactor proximate said tape adapted to provide impact to the tape of sufficient magnitude that resultant movement and oscillation of the tape will overcome static friction in the transducer interface;

    a microprocessor that, when energized at preset system time intervals, interrogates said transducer interface, and transfers said dignal from said transducer interface into a solid state data memory; and

    a read-out means for reading and displaying said signal from said solid state data memory.

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