STEP 4 - CALCULATE. SPEED=DISTANCE/TIME. To work out the speed of the sound in metres per second, divide the distance in metres by the average time in seconds. For example 170 metres divided by 0. ...
The speed of ultrasound in the material under test is 1,200 m/s. d = v × t d = 1,200 × 0.006 = 7.2 m However, since the sound had to travel down to the crack and back again, this distance must ...
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