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ASTM International, 05/10/2001
Publisher: ASTM
File Format: PDF
$31.00$62.00
Published:10/05/2001
Pages:7
File Size:1 file , 75 KB
Note:This product is unavailable in Russia, Ukraine, Belarus
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 (1).
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