A single crystal row-column-array for 3D ultrasound imaging
Ultrasonics. 2024 Mar 11;139:107289. doi: 10.1016/j.ultras.2024.107289. Online ahead of print.ABSTRACTIn vivo 3D ultrasound imaging with 2D-array transducers is of great importance for both clinical application and biomedical research, but it is complicated in fabrication and also very expensive in hardware due to thousands of electronic channels. In this work, we demonstrate a new fabrication process of 7-MHz 128 + 128 elements row-column-array (RCA) transducer with relaxor ferroelectric PMN-0.28PT single crystal. With piezoelectric single crystal and improved acoustic matching, the optimized performance of -6 dB bandwidt...
Source: Ultrasonics - March 16, 2024 Category: Physics Authors: Guo Li Qiandong Sun Yapeng Fu Shilin Hou Jiaming Zhang K L Xu J Y Dai Source Type: research
Damage recovery in composite laminates through deep learning from acoustic scattering of guided waves
Ultrasonics. 2024 Mar 15;139:107293. doi: 10.1016/j.ultras.2024.107293. Online ahead of print.ABSTRACTWe propose an innovative deep learning (DL) regression strategy combined with guided wave modes to address inverse acoustic scattering problems effectively. This approach allows for accurate recovery of heterogeneous defect fields at the interfaces of composite laminates. The neural network (NN) model's training process employs stochastic Gaussian fields as output, which are linked to the interfacial defect fields of the physical problem. Our method assumes prior knowledge of the material geometrical properties of the cons...
Source: Ultrasonics - March 16, 2024 Category: Physics Authors: Bernardo Feij รณ Junqueira Ricardo Leiderman Daniel Alves Castello Source Type: research
Meta-structure enhanced second harmonic S0 waves for material microstructural changes monitoring
Ultrasonics. 2024 Mar 12;139:107295. doi: 10.1016/j.ultras.2024.107295. Online ahead of print.ABSTRACTCumulative second harmonic Lamb waves in nonlinear media feature increasing amplitudes with propagation distance, conducive to the monitoring of material microstructural changes in structures. The phenomenon can be readily generated by zero-order symmetric (S0) mode waves in the low-frequency range. However, in a practical piezoelectric-transducer-activated system, both S0 and A0 (zero-order antisymmetric) mode Lamb waves are inevitably excited, while only the former is responsible for cumulative effects. The generation ef...
Source: Ultrasonics - March 15, 2024 Category: Physics Authors: Ze Liu Shengbo Shan Li Cheng Source Type: research
Energy focusing of broadband Lamb wave by designing excitation waveforms and elastic metamaterials
In this study, an energy focusing method based on broadband Lamb waves by simultaneous designing excitation waveforms and elastic metamaterials is proposed. Firstly, COMSOL finite element simulation software is used to calculate the relationship between the metamaterial structure and the excitation wave. Subsequently, the metamaterial structure and the excitation signal form are designed according to the relationship. Finally, the metamaterial structure is bonded with the aluminum plate using 3D printing PA2200 nylon to verify the effectiveness of the method.PMID:38479109 | DOI:10.1016/j.ultras.2024.107294 (Source: Ultrasonics)
Source: Ultrasonics - March 13, 2024 Category: Physics Authors: Daiyao Du Jiadong Hua Chun Cui Jing Lin Source Type: research
Energy focusing of broadband Lamb wave by designing excitation waveforms and elastic metamaterials
In this study, an energy focusing method based on broadband Lamb waves by simultaneous designing excitation waveforms and elastic metamaterials is proposed. Firstly, COMSOL finite element simulation software is used to calculate the relationship between the metamaterial structure and the excitation wave. Subsequently, the metamaterial structure and the excitation signal form are designed according to the relationship. Finally, the metamaterial structure is bonded with the aluminum plate using 3D printing PA2200 nylon to verify the effectiveness of the method.PMID:38479109 | DOI:10.1016/j.ultras.2024.107294 (Source: Ultrasonics)
Source: Ultrasonics - March 13, 2024 Category: Physics Authors: Daiyao Du Jiadong Hua Chun Cui Jing Lin Source Type: research
Energy focusing of broadband Lamb wave by designing excitation waveforms and elastic metamaterials
In this study, an energy focusing method based on broadband Lamb waves by simultaneous designing excitation waveforms and elastic metamaterials is proposed. Firstly, COMSOL finite element simulation software is used to calculate the relationship between the metamaterial structure and the excitation wave. Subsequently, the metamaterial structure and the excitation signal form are designed according to the relationship. Finally, the metamaterial structure is bonded with the aluminum plate using 3D printing PA2200 nylon to verify the effectiveness of the method.PMID:38479109 | DOI:10.1016/j.ultras.2024.107294 (Source: Ultrasonics)
Source: Ultrasonics - March 13, 2024 Category: Physics Authors: Daiyao Du Jiadong Hua Chun Cui Jing Lin Source Type: research
Acoustic shadow zone of the guided wave in a variable thickness plate
This article calculates and experimentally verifies the curved propagation path of dispersive guided waves. Experiments show that the degree of propagation path bending increases with the increase of frequency in a certain frequency range. On the path that varies along the thickness, the experiment observes an acoustic shadow zone that accounts for nearly 25% of the total path. Additionally, a practical case study involving a guided wave with a curved path is presented. Consideration of the curved path improves the positioning accuracy, offering insights into damage location in variable thickness plates. This research on t...
Source: Ultrasonics - March 12, 2024 Category: Physics Authors: Zhiyuan Zhang Bing Li Yanqi Wang Source Type: research
Ultrasonic detection method based on flexible capillary water column arrays coupling
Ultrasonics. 2024 Mar 8;139:107276. doi: 10.1016/j.ultras.2024.107276. Online ahead of print.ABSTRACTConventional water immersion ultrasonic testing faces limitations due to factors such as environmental conditions, workpiece dimensions, corrosion, and resource wastage. Contact-based coupling methods, which employ coupling media or specific coupling structures, offer a convenient approach to coupling acoustic waves and reduce signal attenuation. However, these methods are time-sensitive and lack adaptability to uneven surfaces, particularly when dealing with workpieces featuring subtle undulations, resulting in significant...
Source: Ultrasonics - March 10, 2024 Category: Physics Authors: Kai Wang Yini Song Yihua Kang Yizhou Guo Hongbao Ma Shengping Wu Jin Yang Source Type: research
Ultrasonic detection method based on flexible capillary water column arrays coupling
Ultrasonics. 2024 Mar 8;139:107276. doi: 10.1016/j.ultras.2024.107276. Online ahead of print.ABSTRACTConventional water immersion ultrasonic testing faces limitations due to factors such as environmental conditions, workpiece dimensions, corrosion, and resource wastage. Contact-based coupling methods, which employ coupling media or specific coupling structures, offer a convenient approach to coupling acoustic waves and reduce signal attenuation. However, these methods are time-sensitive and lack adaptability to uneven surfaces, particularly when dealing with workpieces featuring subtle undulations, resulting in significant...
Source: Ultrasonics - March 10, 2024 Category: Physics Authors: Kai Wang Yini Song Yihua Kang Yizhou Guo Hongbao Ma Shengping Wu Jin Yang Source Type: research
Ultrasonic detection method based on flexible capillary water column arrays coupling
Ultrasonics. 2024 Mar 8;139:107276. doi: 10.1016/j.ultras.2024.107276. Online ahead of print.ABSTRACTConventional water immersion ultrasonic testing faces limitations due to factors such as environmental conditions, workpiece dimensions, corrosion, and resource wastage. Contact-based coupling methods, which employ coupling media or specific coupling structures, offer a convenient approach to coupling acoustic waves and reduce signal attenuation. However, these methods are time-sensitive and lack adaptability to uneven surfaces, particularly when dealing with workpieces featuring subtle undulations, resulting in significant...
Source: Ultrasonics - March 10, 2024 Category: Physics Authors: Kai Wang Yini Song Yihua Kang Yizhou Guo Hongbao Ma Shengping Wu Jin Yang Source Type: research
Optoacoustic interferometric characterization system (OPTICS) for the evaluation of fuel quality through speed of sound measurements
Ultrasonics. 2024 Mar 6;139:107291. doi: 10.1016/j.ultras.2024.107291. Online ahead of print.ABSTRACTUltrasonic techniques have been applied to assess crucial physical parameters in various types of fuels including the speed of sound (SoS), the bulk modulus and the acoustic attenuation coefficient. Such investigations may have important practical significance as the knowledge of fuel properties is directly related to the analysis of combustion characteristics, engine's overall performance and exhaust emission in the environment. Nevertheless, typical pulse-echo acoustic methods, require the exact determination of both acou...
Source: Ultrasonics - March 9, 2024 Category: Physics Authors: George J Tserevelakis Charalampos Astrinakis Giannis Zacharakis Source Type: research
Ultrasonic liquid level detection method based on the variation of reflected energy on the inner wall of a container
Ultrasonics. 2024 Mar 6;139:107290. doi: 10.1016/j.ultras.2024.107290. Online ahead of print.ABSTRACTLiquid level detection plays an important role in industry. For the liquid level detection of flammable, explosive and volatile liquids, the detection method based on the ultrasonic principle is usually adopted. Though a lot of efforts, the detection precision is still challenging. Herein, Ultrasonic liquid level detection method is studied to address the detection precision. A projection model of the inner wall of the sound beam is established. The transmitter-receiver probe is placed near the height of the liquid level on...
Source: Ultrasonics - March 9, 2024 Category: Physics Authors: Tiaotiao Zhang Xiping He Yu Liu Bin Li Source Type: research
Shear horizontal waves in a multiferroic composite semiconductor structure
Ultrasonics. 2024 Mar 2;139:107287. doi: 10.1016/j.ultras.2024.107287. Online ahead of print.ABSTRACTPiezoelectric semiconductors (PSs) possess the physical properties of piezoelectric and semiconductor simultaneously. When a piezomagnetic (PM) material is added to the PS, the composite structures will exhibit the comprehensive mageto-electro-semiconductive (MES) coupling effects. In this paper, the propagation characteristics of shear horizontal (SH) waves in a multiferroic composite semiconductor structure are investigated, where a n-type PS thin plate is perfectly bonded to a semi-infinite PM substrate. Based on the thr...
Source: Ultrasonics - March 9, 2024 Category: Physics Authors: Lei Yang Enrico Zappino Erasmo Carrera Jianke Du Source Type: research
Simultaneous photoacoustic and ultrasound imaging: A review
Ultrasonics. 2024 Feb 28;139:107277. doi: 10.1016/j.ultras.2024.107277. Online ahead of print.ABSTRACTPhotoacoustic imaging (PAI) is an emerging biomedical imaging technique that combines the advantages of optical and ultrasound imaging, enabling the generation of images with both optical resolution and acoustic penetration depth. By leveraging similar signal acquisition and processing methods, the integration of photoacoustic and ultrasound imaging has introduced a novel hybrid imaging modality suitable for clinical applications. Photoacoustic-ultrasound imaging allows for non-invasive, high-resolution, and deep-penetrati...
Source: Ultrasonics - March 9, 2024 Category: Physics Authors: Yinshi Yu Ting Feng Haixia Qiu Ying Gu Qian Chen Chao Zuo Haigang Ma Source Type: research
Optoacoustic interferometric characterization system (OPTICS) for the evaluation of fuel quality through speed of sound measurements
Ultrasonics. 2024 Mar 6;139:107291. doi: 10.1016/j.ultras.2024.107291. Online ahead of print.ABSTRACTUltrasonic techniques have been applied to assess crucial physical parameters in various types of fuels including the speed of sound (SoS), the bulk modulus and the acoustic attenuation coefficient. Such investigations may have important practical significance as the knowledge of fuel properties is directly related to the analysis of combustion characteristics, engine's overall performance and exhaust emission in the environment. Nevertheless, typical pulse-echo acoustic methods, require the exact determination of both acou...
Source: Ultrasonics - March 9, 2024 Category: Physics Authors: George J Tserevelakis Charalampos Astrinakis Giannis Zacharakis Source Type: research
