Measuring and testing – With fluid pressure – Leakage
Patent
1984-09-28
1987-02-03
Levy, Stewart J.
Measuring and testing
With fluid pressure
Leakage
340605, G01M 324
Patent
active
046401210
ABSTRACT:
A method for determining the location of a leak in pressure-carrying vessels, including a plurality of probes spaced-apart on walls of the vessels for picking up high-frequency solid-conducted sound noises, and an amplifier connected to the probes, includes forming an r.m.s. value in the amplifier from the sound noises, comparing the r.m.s. value with a threshold value, issuing a signal if the r.m.s. value exceeds the threshold value, comparing the solid-conducted sound noises from at least two probes with each other for localizing the leak, placing the r.m.s. values of the solid-conducted sound noises in a relationship relative to the spacing between the probes based on the comparison, and determining the location of the leak as the location of the maximum solid-conducted sound noise from the relationship.
REFERENCES:
patent: 3713127 (1973-01-01), Keledy et al.
patent: 4289019 (1981-09-01), Claytor
patent: 4457163 (1984-07-01), Jackle
Leuker Wilhelm
Stipsits Gunter
Thiel Bernhard
Greenberg Laurence A.
Kraftwerk Union Aktiengesellschaft
Lerner Herbert L.
Levy Stewart J.
Roskos Joseph W.
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