Method for determining a leak in a pond liner of electrically in

Details Method for determining a leak in a pond liner of electrically in Method for determining a leak in a pond liner of electrically in

1983-05-09

1985-09-24

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 3108, G01R 3112

Patent

active

045435251

ABSTRACT:
The location of a leak in a pond liner made of a sheet of electrically insulating material, such a polyvinyl chloride, supported by an electrically conductive medium, an example of which is a salar, is determined by immersing a power electrode in an electrically conductive fluid within the pond and a second or ground electrode in the supporting medium and creating therewith an electric potential between the pond fluid and supporting medium. A detector, having a pair of spaced probe electrodes which are electrically connected, is introduced to the fluid near the power electrode with the ends of the probe electrodes adjacent the liner. The detector is rotated until a maximum current reading is obtained by a galvanometer electrically connected to the detector probes. With the probes so aligned with respect to the power electrode, the probes are cause to traverse the liner and the location of a leak is noted by a sharp change in the galvanometer reading as one of the probes passes over the leak.

REFERENCES:
patent: 3383863 (1968-04-01), Berry
patent: 3405356 (1968-10-01), Hubby
patent: 3800217 (1974-03-01), Lowrance
patent: 4101827 (1978-07-01), Offner
patent: 4404516 (1983-09-01), Johnson

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