Development and Application of Contact-type Line-focus Ultrasonic Probe
نویسندگان
چکیده
A contact-type line-focus ultrasonic probe has been developed. The probe is composed of a quarter cylindrical wedge and a piezoelectric transducer attached to its cylindrical surface. A key feature of the developed probe is that longitudinal wave is incident to the testing object at all angles from 0° to 90° simultaneously. Basic characteristics of the probe have been examined by visualizing ultrasonic wave field and by evaluating the directivity. Some applications of the probe have been also investigated. It has been shown that the probe can transmit and receive Rayleigh and generalized Lamb waves in objects having relatively wide range of mechanical properties. It has been also shown that this probe can be applied to TOFD method.
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