Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1990-09-07
1992-01-14
Williams, Hezron E.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
73 40, 340605, G08B 2100
Patent
active
050814222
ABSTRACT:
The present invention describes a method to detect leaks in a roof or leaks in basement walls or floors of a building. The detection is achieved by placing a two wire detector in the region to be monitored and measuring the current with a voltage applied across the two wires. The location of the leak is determined by placing several wire detector pairs in a mesh fashion and then scanning the leakage current through each wire pair. A complete detection and scanning system is also described.
REFERENCES:
patent: 3383863 (1968-05-01), Berry
patent: 4404516 (1983-09-01), Johnson, Jr.
patent: 4598273 (1986-07-01), Bryan, Jr. et al.
patent: 4965554 (1990-10-01), Darling
Roskos Joseph W.
Williams Hezron E.
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