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Title: Method and Apparatus for Monitoring the Integrity of a Geomembrane Liner using time Domain Reflectometry

Patent Application ·
OSTI ID:782845

Leaks are detected in a multi-layered geomembrane liner by a two-dimensional time domain reflectometry (TDR) technique. The TDR geomembrane liner is constructed with an electrically conductive detection layer positioned between two electrically non-conductive dielectric layers, which are each positioned between the detection layer and an electrically conductive reference layer. The integrity of the TDR geomembrane liner is determined by generating electrical pulses within the detection layer and measuring the time delay for any reflected electrical energy caused by absorption of moisture by a dielectric layer.

Research Organization:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
US Department of Energy (US)
DOE Contract Number:
AC07-94ID13223
Assignee:
DOEGC; EDB-01:069796
Patent Number(s):
PATENTS-US-A9187827
Application Number:
9-187,827; TRN: AH200127%%188
OSTI ID:
782845
Resource Relation:
Patent File Date: 1998 Nov 09; Other Information: PBD: 9 Nov 1998
Country of Publication:
United States
Language:
English