1.1 This test method describes a procedure for measurement of ultrasonic velocity in structural engineering solids such as monolithic ceramics, toughened ceramics, and ceramic matrix composites.
1.2 This test method is based on the broadband pulse-echo contact ultrasonic method. The procedure involves a computer-implemented, frequency-domain method for precise measurement of time delays between pairs of echoes returned by the back surface of a test sample or part.
1.3 This test method describes a procedure for using a digital cross-correlation algorithm for velocity measurement. The cross-correlation function yields a time delay between any two echo waveforms
SDO | ASTM: ASTM International |
Document Number | C1331 |
Publication Date | Aug. 1, 2007 |
Language | en - English |
Page Count | 7 |
Revision Level | 01(2007) |
Supercedes | |
Committee | C28.03 |