Location

Seattle, WA

Start Date

1-1-1996 12:00 AM

Description

The primary objective in calibrating ultrasonic transducers and measurement systems is to ensure the interchangeability of data. Thus, one wishes to create a situation in which experimental results, e.g. A-Scans or C-Scans taken at one time and place, can be directly compared in a quantitative sense to similar data taken at another time and place. The presently available tools are not sufficient to this task. As noted by Burley [1], there has been no single type of calibration standard that is suitable in all ultrasonic applications and inspection procedures. Instead, there is a wide range of reference standards that are used in different situations to calibrate transducers and measurement systems. Although these have served the community well in bounding the results which can be obtained by different systems, they do not ensure uniformity of results. A striking example for the case of eddy currents can be found in Fig. 4 of Ref. [2].

Volume

15A

Chapter

Chapter 4: NDE Sensors

Section

Ultrasonic Transducers (Liquid Coupled)

Pages

931-937

DOI

10.1007/978-1-4613-0383-1_122

Language

en

File Format

application/pdf

Share

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Jan 1st, 12:00 AM

Strategies for Characterizing Transducers and Measurement Systems

Seattle, WA

The primary objective in calibrating ultrasonic transducers and measurement systems is to ensure the interchangeability of data. Thus, one wishes to create a situation in which experimental results, e.g. A-Scans or C-Scans taken at one time and place, can be directly compared in a quantitative sense to similar data taken at another time and place. The presently available tools are not sufficient to this task. As noted by Burley [1], there has been no single type of calibration standard that is suitable in all ultrasonic applications and inspection procedures. Instead, there is a wide range of reference standards that are used in different situations to calibrate transducers and measurement systems. Although these have served the community well in bounding the results which can be obtained by different systems, they do not ensure uniformity of results. A striking example for the case of eddy currents can be found in Fig. 4 of Ref. [2].