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METROLOGY QUALIFICATION OF NON-DESTRUCTIVE INSPECTION SYSTEMS
METROLOGY QUALIFICATION OF NON-DESTRUCTIVE INSPECTION SYSTEMS
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机译:非破坏性检查系统的计量资格
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摘要
A method for performing metrology qualification of a non-destructive inspection (NDI) ultrasonic system includes performing, by the NDI ultrasonic system, an ultrasonic scanning operation on a calibration coupon. The ultrasonic scanning operation generates a scan signal. The method also includes superimposing a time-domain qualification mask on the scan signal and determining whether the scan signal is within the time-domain qualification mask. The method also includes validating a porosity sensitivity of the NDI ultrasonic system using a frequency-domain qualification mask. The method additionally includes qualifying the NDI ultrasonic system in response to the scan signal being within the time-domain qualification mask for a portion of the calibration coupon without a defect and the scan signal being above the time-domain qualification mask for another portion of the calibration coupon including the defect, and the porosity sensitivity of the NDI ultrasonic system being validated.
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