NDT Evaluation Checklist: Written Procedures for Ultrasonics Inspection Mobile App
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Ultrasonic inspection uses high frequency sound waves to interrogate the component for internal flaws via a transmitting transducer.
How does it work?
Both single transducer (where one transducer serves as sender and receiver, known as reflection) and dual transducer (where one transducer serves as sender and the others as receiver, known as transmission) methods are used. The ultrasonic method is used to determine the presence of interior flaws, measure thickness or determine material properties. Typical applications require fluid couplants to transmit the sound from the transducers to the part. Both contact (use of gel couplant) and immersion (submerge part in water or other approved fluid) are used. During certification, written procedures should be required, which are applicable to the part or group of parts being tested. During audit/evaluation and surveillance the adherence to the procedures should be verified. Procedures may include the elements in the NDT Evaluation Checklist: Written Procedures for Ultrasonics Inspection moble app.