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Testermeter-Ladder flat bottom test block -10 Ladder - non-destructive testing ultrasonic test block
According to the Nor standard of pressure equipment NB/T47013-2015, the stepped flat test block is suitable for using twin straight probe to detect the thickmess of the plate less than 20mm, and can also be used to make the distance amplitude characteristic curve of the twin probe.
| Iest method: (1) select a step with the thicknes ofthe test plate or greaterthan the thidkmes ofthe test plate,place the probe on the selected step, adjust the instrument is thefirst botom wave adjusted to 50% ofthe fullscale, increase 10dB, as the reference sensitivity, and then gain 6dB on the basis ofthe reference sensitivity as the detection sensitivity. |
Lable:
non-destructive testing
