The review of FRP volume porosity definition with ultrasonic non-destructive technique (review)

Dikov, I.A.; Boychuk, A.S.

doi:10.18577/2307-6046-2017-0-2-10-10

Cited by 3 publications

(1 citation statement)

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“…Ultrasonic waves can propagate in any medium in the form of a wave. It propagates along a straight line [ 25 ]. In the process of transmission, diffraction, refraction, reflection, attenuation, and other phenomena will occur when encountering obstacles in the path [ 26 ].…”

Section: Theory and Methodsmentioning

confidence: 99%

Study of Ultrasonic Near-Field Region in Ultrasonic Liquid-Level Monitoring System

Gao

Liu

et al. 2020

Micromachines

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In the method of monitoring the liquid level based on ultrasonic impedance, the near-field effect can seriously affect the validity of the results. In this paper, we explore the factors affecting the length of the ultrasonic near field. Based on that, we propose the optimal length and the minimum length of the buffer block to avoid the near field. The evaluations show that when the parameters of the ultrasonic probe are 15 mm in diameter, 1 MHz in frequency, and ±15 V in emitted ultrasonic wave amplitude, the best results are obtained when the length of the buffer block is 22 mm. When the probe diameter is 10 mm, the buffer block length should be ≥5 mm to ensure the validity of the measured results. The evaluation precision is 1 mm. This research can effectively avoid the blind area of emitted waves when using ultrasonic to measure the liquid level. It provides an effective basis for the selection and design of ultrasonic probes.

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Section: Theory and Methodsmentioning

confidence: 99%

Study of Ultrasonic Near-Field Region in Ultrasonic Liquid-Level Monitoring System

Gao

Liu

et al. 2020

Micromachines

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Determining Porosity of Monolithic Zones in Aircraft Parts and Assemblies Made of PCMs Using Ultrasound Pulse Echo Method

Бойчук

Dikov

Chertishchev

et al. 2019

Russ J Nondestruct Test

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Study of the attenuation of ultrasonic oscilliations in 3D-orthogonal woven composite

Yakovleva

Dalin

Krupnina

et al. 2023

Vopr. materialoved.

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The particularities of 3D-woven composite’s defects are observed. Automated ultrasonic immersion through-transmission technique for their non-destructive testing is offered. X-ray computed tomography (X-ray CT) application for the definition of the reasons of ultrasonic waves high attenuation in 3D-orthogonal woven composite sample is described. The analysis of defects detected with X-ray CT is shown. The suggestion about connection between quantity of projection of defects total area at the plane which is perpendicular to ultrasonic wave propagation and ultrasonic wave attenuation has been made.

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The review of FRP volume porosity definition with ultrasonic non-destructive technique (review)

Cited by 3 publications

References 0 publications

Study of Ultrasonic Near-Field Region in Ultrasonic Liquid-Level Monitoring System

Study of Ultrasonic Near-Field Region in Ultrasonic Liquid-Level Monitoring System

Determining Porosity of Monolithic Zones in Aircraft Parts and Assemblies Made of PCMs Using Ultrasound Pulse Echo Method

Study of the attenuation of ultrasonic oscilliations in 3D-orthogonal woven composite

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