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Electromagnetic ultrasonic transducer for generating and detecting longitudinal waves (with a small amount of radially polarized transverse wave)

Journal Article · · Mater. Eval.; (United States)
OSTI ID:7357061
An electromagnetic ultrasonic transducer that generates and detects a relatively large amount of longitudinal ultrasonic wave and a small amount of radially polarized transverse ultrasonic wave was built and tested on stainless steel, mild steel, and aluminum at room temperature. The flaw detection ability of the electromagnetic transducer was compared with that of a piezoelectric ceramic transducer, and the signal-to-noise ratios were comparable. It was also shown experimentally with the electromagnetic transducer that mode conversion between a longitudinal wave and a radially polarized transverse wave occurs at the perpendicular incidence.
Research Organization:
Oak Ridge National Lab., TN
OSTI ID:
7357061
Journal Information:
Mater. Eval.; (United States), Journal Name: Mater. Eval.; (United States) Vol. 34:4; ISSN MAEVA
Country of Publication:
United States
Language:
English

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