High-frequency ultrasound-based thickness measurement of highly attenuating materials

Wang, Jishuo; Lai, Quanqing; Xu, Caibin; Ning, Hui; Deng, Mingxi

doi:10.1088/1361-6501/aca498

Cited by 2 publications

(1 citation statement)

References 24 publications

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“…Compared with the pitch-catch method, a pulse-echo measurement technique, which has a simple equipment setup and is feasible in operation, is more desirable. In a recent study conducted by Wang et al [13], a high-frequency transducer was utilized for the generation of a high-frequency PLW tone burst. The same transducer was also employed to receive the pulse-echo signals, which consisted of the PLW tone burst and the generated QSC pulse.…”

Section: Introductionmentioning

confidence: 99%

A novel pulse-echo piezoelectric transducer for detecting quasi-static component induced by an ultrasonic longitudinal wave

Lai,

Lu,

et al. 2023

Meas. Sci. Technol.

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For effectively detecting the quasi-static component (QSC) of an ultrasonic longitudinal wave, which is closely related to the elastic nonlinearity of material, we proposed a novel pulse-echo piezoelectric transducer consisting of a high-frequency piezoelectric wafer, a frequency selective isolation layer, a low-frequency piezoelectric wafer, and an acoustic backing. The high-frequency wafer generates the primary longitudinal wave (PLW) tone burst, while the high- and low-frequency wafers receive the pulse echo containing both the PLW component and QSC, respectively. We analyze the pulse-echo formation of the high-frequency PLW tone burst in a specimen, and conduct numerical simulations and experiments to validate the effectiveness of the proposed transducer. The results demonstrate that the low-frequency receiver is more efficient at detecting the QSC, even though the high-frequency wafer can also receive the echo of the QSC pulse. Specifically, the QSC pulse can still be detected by the low-frequency receiver when the high-frequency PLW tone burst is completely attenuated. The novel pulse-echo transducer proposed in this paper expands the design perspectives for transducers used in ultrasonic non-destructive testing.

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Section: Introductionmentioning

confidence: 99%

A novel pulse-echo piezoelectric transducer for detecting quasi-static component induced by an ultrasonic longitudinal wave

Lai,

Lu,

et al. 2023

Meas. Sci. Technol.

Self Cite

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Assessment of Aging Degradation in Rubber Using Quasi-Static Components of Ultrasonic Longitudinal Waves

Lai,

Xu,

Wang

et al. 2024

Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems

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Aging degradation is the main form of failure of rubber in service, leading to a decline in its physical and mechanical properties. This paper presents an efficient method for assessing the aging degradation of rubber using the quasi-static component (QSC) of ultrasonic longitudinal waves induced by acoustic radiation. The experiments quantitatively observe the response of the QSC pulse to different levels of aging degradation. A pulse-echo ultrasonic transducer is employed to simultaneously capture the primary longitudinal wave (PLW) and QSC echoes, enabling the determination of the acoustic nonlinearity parameter of QSC with a single transducer excitation. The results suggest that, in comparison to traditional linear ultrasonic techniques based on attenuation coefficient and wave velocity measurements, the relative acoustic nonlinear parameter of QSC proves to be more sensitive to aging degradation in rubber. Particularly, the amplitude of the QSC pulse undergoes a significant change with increasing aging degradation, even when the PLW tone burst is completely attenuated. These findings confirm the effectiveness of QSC as a method for evaluating aging degradation in highly attenuative materials.

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High-frequency ultrasound-based thickness measurement of highly attenuating materials

Cited by 2 publications

References 24 publications

A novel pulse-echo piezoelectric transducer for detecting quasi-static component induced by an ultrasonic longitudinal wave

A novel pulse-echo piezoelectric transducer for detecting quasi-static component induced by an ultrasonic longitudinal wave

Assessment of Aging Degradation in Rubber Using Quasi-Static Components of Ultrasonic Longitudinal Waves

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