Title :
Accurate measurements of longitudinal-wave velocity in IIW-type calibration blocks
Author :
Lerch, T.P. ; Renken, M.C. ; Fortunko, C.M.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
A proposed ISO standard specifies tolerances on longitudinal-wave velocity measurements made on IIW-type calibration blocks. These specifications conflict with current ASTM standards for velocity measurements. We evaluate the tolerances of the proposed ISO standard by measuring the longitudinal-wave velocities on a series of blocks, discuss the uncertainties in the measurements, and evaluate the practicality of the proposed standard
Keywords :
ISO standards; calibration; measurement standards; ultrasonic materials testing; ultrasonic velocity measurement; ASTM standards; IIW-type calibration blocks; ISO standard; longitudinal-wave velocity measurement; nondestructive testing; practicality; tolerances; velocity measurements; Calibration; Geometry; ISO standards; Measurement standards; Measurement uncertainty; NIST; Pulse measurements; Steel; Ultrasonic variables measurement; Velocity measurement;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.765044
