Measuring and testing – With fluid pressure – Leakage
Patent
1993-08-19
1995-04-25
Williams, Hezron E.
Measuring and testing
With fluid pressure
Leakage
73 1R, G01M 324
Patent
active
054088674
ABSTRACT:
A method for ultrasonic leak location includes showing ultrasound levels measured at various measuring locations along a measuring segment in a bar diagram. An intersection of two straight lines in the bar diagram is ascertained to identify a leakage position. At least an individual ultrasound pickup is calibrated with respect to its amplification factor and/or its location error. An apparatus for ultrasonic leak location includes a number of ultrasound pickups being disposed along a measuring segment. Amplifiers and components forming an effective value connect outputs of the ultrasound pickups to a data processing system. The data processing system calibrates an individual ultrasound pickup with respect to its amplification factor and/or its location coordinate.
REFERENCES:
patent: 3814207 (1974-06-01), Kusada et al.
patent: 4321528 (1982-03-01), Reichel et al.
patent: 4457163 (1984-07-01), Jackle
patent: 4640121 (1987-02-01), Leuker et al.
patent: 4858462 (1989-08-01), Coulter et al.
patent: 5031446 (1991-07-01), Saito et al.
Lord et al., "Attenuation of Elastic Waves in Pipelines as Applied to Acoustic Emission Leak Detection", Materials Evaluation, Nov. 1977 pp. 49-54.
Technisches Messen 58(1991), pp. 47-60 (Fuchs et al) "Acoustic Leak Detection on District Heating Pipelines".
Siemens Publ. Order No. A19100-U653-A212 (1990), pp. 2-12 "Alus Acoustic Leakage Monitoring System".
American Society for Nondestr. Testing, Jul. 1992 pp. 875-882 (Fowler) "Chemical Industry Application of Acoustic Emission".
American Society for Nondestr. Testing, Nov. 1989, pp. 1297-1300 (Kuperman) "Characterization of Acoustic Signals from Leaking Intergranular".
"Detect buried steam leaks with acoustics", Sabo, Electrical World, vol. 186, No. 1, Jul. 1, 1976, p. 40.
Knoblach Walter
Kunze Ulrich
Schulze Gunther
Brock Michael J.
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
Williams Hezron E.
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