Patent · US Expired

Method and apparatus for calibrating an ultrasonic leak location

US5408867A · kind A · utility

9Cited by

6References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ulrich Kunze · Gernsheim, DE
Walter Knoblach · Forchheim, DE
Gunther Schulze · Seukendorf, DE

Key dates

Filing date	Aug 19, 1993
Grant date	Apr 25, 1995
Priority date	—
Expiry date	Aug 19, 2013

Classification

Technology area (CPC G)Physics
CPC primaryG01M3/243
WIPO fieldMeasurement
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.