Sensitive tint visualization system for Lamb waves propagation in a glass plate

Hosaka, Yoshito; Imano, Kazuhiko

doi:10.1250/ast.38.165

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…4(b), unneces- sary radiation was drastically reduced, and the ultrasonic beam is narrowed at the head of the wave front. This seems to be mainly due to the energy trapping effect [28,30]. This property may be advantageous for improving spatial resolution in the non-destructive evaluation.…”

Section: Transducer With Sidingmentioning

confidence: 99%

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Use of energy trapping type piezoelectric transducer to suppress lateral vibration in the transducer

Imano

2019

IEICE Electron. Express

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Vibration characteristics of two types of piezoelectric transducers with whole-surface electrode and a partially electrode were driven in the thickness direction in air and water acoustic loading on the acoustic radiation surface. Partial electrode transducers had an acoustic loading on the side surface, which is called "siding". Use of partial electrode transducer allowed the lateral vibration on the acoustic radiation surface to be flattened, and thickness vibration becomes almost uniform. Schlieren observation and wavenumber analysis indicate that lateral waves were identified as Lamb waves. An A1 mode Lamb wave is given as a sample to verify the usefulness of this method.

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Section: Transducer With Sidingmentioning

confidence: 99%

“…For the lateral vibration such as Fig. 3(a), a wavenumber analysis [30,31] was performed to identify the mode of the Lamb wave existing on the acoustic radiation surface, as shown in Fig. 5(a).…”

Section: Wavenumber Analysismentioning

confidence: 99%