Measuring and testing – With fluid pressure – Leakage
Patent
1993-08-19
1995-07-18
Williams, Hezron E.
Measuring and testing
With fluid pressure
Leakage
G01M 324
Patent
active
054331048
ABSTRACT:
A method for ultrasonic leak location includes showing sound levels at various measuring locations along a measurement segment, which is a part of an annular structure, with a bar diagram. The same bar diagram is added again to the bar diagram. A particular sound level having the highest value and being located the most in the middle of the placed together bar diagrams is picked out. A segment around the associated pickup positions having one complete set of pickup positions is picked out. Two compensating straight lines for that set having an intersection being ascertained to identify the leakage position are determined. Another method includes providing at least a sound level having a position substantially facing the leakage position with a correction value. 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 a data processing system to outputs of the ultrasound pickups. The data processing system forms a placed together representation of two bar diagrams. In another apparatus, the data processing system stores correction values for the sound levels and corrects the sound levels accordingly.
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Knoblach Walter
Kunze Ulrich
Schulze Gunther
Brock Michael J.
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
Williams Hezron E.
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