Addendum-01a Equipment Calibrations My ASNT Level III UT Study Notes. 2014-June
UT testing self study notes
UT testing self study notes
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DAC Curve Plot<br />
1. Obtained the signal from the refernce reflector and mark on the<br />
graticule/traspatrent sheet with gain setting at 80% FSH.<br />
2. Set the gain control -6bB and marks the 50% mark.<br />
3. Set the gain contril to the<br />
4. Obtained the signal at the gain setting in item 1 and repeat the process at<br />
different sound paths.<br />
5. Plot the curves at the gain setting and -6dB.<br />
6. Determined the transfer correction.<br />
7. Scanned the work pieces at the “Gain Setting + Transfer Correction”