Measuring and testing – Vibration – By mechanical waves
Patent
1986-10-02
1987-10-06
Levy, Stewart J.
Measuring and testing
Vibration
By mechanical waves
73 405A, G01M 324, G01N 2904
Patent
active
046974563
ABSTRACT:
A method for detecting leakage from an in-ground liquid containment having a nominally impermeable floor, wherein a source emits a burst and a row of sensors are placed on an opposing side of the containment to receive boundary wave energy transmitted along the containment floor. Traces from the sensors show a regular pattern of boundary wave amplitude or arrival time, with irregularities indicative of regions of floor defects. The sensors each receive energy propagated along a strip radiating from the source. To locate leakage, the method is repeated with source and sensors oriented across a second direction. Irregularities in first and second crossing strips indicate a defect located in the region of intersection of the two strips. Power spectrum analysis of the traces identifies particular types of floor defects, and baseline measurements correct for natural subterranean features.
REFERENCES:
patent: 267825 (1882-11-01), Bell
patent: 3055209 (1962-09-01), Reid et al.
patent: 3252155 (1966-05-01), Surtees et al.
patent: 3383863 (1968-05-01), Berry
patent: 3458656 (1969-07-01), Sewerin
patent: 4083229 (1978-04-01), Anway
patent: 4176543 (1979-12-01), Nolte et al.
patent: 4404516 (1983-09-01), Johnson, Jr.
patent: 4435974 (1984-03-01), Fuchs et al.
patent: 4457163 (1984-07-01), Jackle
Levy Stewart J.
Roskos Joseph W.
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