Method and apparatus for ultrasonic leak location

Details Method and apparatus for ultrasonic leak location Method and apparatus for ultrasonic leak location

G - Physics

01

N

G01N 29/14 (2006.01) G01M 3/24 (2006.01)

Patent

CA 2104332

Abstract of the Disclosure: A method for ultrasonic leak location includes showing sound levels in a bar diagram at various locations along a measure- ment segment. The measuring segment is divided into subsegments with intrinsically uniform damping. Effective portions are obtained by multiplying the subsegments by the associated damping coefficient, and an effective portion is assigned to each of the subsegments. Corresponding effective measuring positions are ascertained for the measuring loca- tions within the effective portions. Respective logarithmized net sound levels are plotted through the ascertained effective measuring locations and two inclined straight lines are produced as a result. An intersection of the straight lines in the bar diagram is ascertained for identifying a leak point. An apparatus for ultrasonic leak location includes a number of ultrasound pickups being disposed at measuring locations along a measuring segment, a data processing computer, amplifiers and components forming an effective value. The amplifiers and the components are connected between outputs of the ultrasound pickups and the data processing system.

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