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Bibliographies thématiques / 2D array transducer

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Littérature scientifique sur le sujet « 2D array transducer »

Auteur : Grafiati

Publié le 8 mars 2025

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Articles de revues sur le sujet "2D array transducer"

1

Roh, Yongrae. "Design and Fabrication of a 2D Array Ultrasonic Transducer." JOURNAL OF THE ACOUSTICAL SOCIETY OF KOREA 32, no. 5 (2013): 393. http://dx.doi.org/10.7776/ask.2013.32.5.393.

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Lu, Jian-Yu, and Jiqi Cheng. "Field Computation for Two-Dimensional Array Transducers with Limited Diffraction Array Beams." Ultrasonic Imaging 27, no. 4 (2005): 237–55. http://dx.doi.org/10.1177/016173460502700403.

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A method is developed for calculating fields produced with a two-dimensional (2D) array transducer. This method decomposes an arbitrary 2D aperture weighting function into a set of limited diffraction array beams. Using the analytical expressions of limited diffraction beams, arbitrary continuous wave (cw) or pulse wave (pw) fields of 2D arrays can be obtained with a simple superposition of these beams. In addition, this method can be simplified and applied to a 1D array transducer of a finite or infinite elevation height. For beams produced with axially symmetric aperture weighting functions,

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3

Dong, Zhijie, Shuangliang Li, Chengwu Huang, et al. "Real-time 3D ultrasound imaging with a clip-on device attached to common 1D array transducers." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A102. http://dx.doi.org/10.1121/10.0026955.

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Performing 3D ultrasound imaging at a real-time volume rate (e.g., &gt;20 Hz) is a challenging task. While 2D array transducers remain the most practical approach for real-time 3D imaging, the large number of transducer elements (e.g., several thousand) that are necessary to cover an effective 3D field-of-view impose a fundamental constraint on imaging speed. Although solutions such as multiplexing and specialized transducers, including sparse arrays and row-column-addressing arrays, have been developed to address this limitation, they inevitably compromise imaging quality (e.g., SNR, reso

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Li, Xiaotong, Anthony Gachagan, and Paul Murray. "Design of 2D Sparse Array Transducers for Anomaly Detection in Medical Phantoms." Sensors 20, no. 18 (2020): 5370. http://dx.doi.org/10.3390/s20185370.

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Aperiodic sparse 2D ultrasonic array configurations, including random array, log spiral array, and sunflower array, have been considered for their potential as conformable transducers able to image within a focal range of 30–80 mm, at an operating frequency of 2 MHz. Optimisation of the imaging performance of potential array patterns has been undertaken based on their simulated far field directivity functions. Two evaluation criteria, peak sidelobe level (PSL) and integrated sidelobe ratio (ISLR), are used to access the performance of each array configuration. Subsequently, a log spiral array

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Light, Edward D., Salim F. Idriss, Kathryn F. Sullivan, Patrick D. Wolf, and Stephen W. Smith. "Real-Time 3D Laparoscopic Ultrasonography." Ultrasonic Imaging 27, no. 3 (2005): 129–44. http://dx.doi.org/10.1177/016173460502700301.

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We have previously described 2D array ultrasound transducers operating up to 10 MHz for applications including real time 3D transthoracic imaging, real time volumetric intracardiac echocardiography (ICE), real time 3D intravascular ultrasound (IVUS) imaging, and real time 3D transesophageal echocardiography (TEE). We have recently built a pair of 2D array transducers for real time 3D laparoscopic ultrasonography (3D LUS). These transducers are intended to be placed down a trocar during minimally invasive surgery. The first is a forward viewing 5 MHz, 11 times 19 array with 198 operating elemen

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6

Wang, Xu-Bo, Le-Ming He, You-Cao Ma, et al. "Development of Broadband High-Frequency Piezoelectric Micromachined Ultrasonic Transducer Array." Sensors 21, no. 5 (2021): 1823. http://dx.doi.org/10.3390/s21051823.

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Piezoelectric micromachined ultrasonic transducers (PMUT) are promising elements to fabricate a two-dimensional (2D) array with a pitch small enough (approximately half wavelength) to form and receive arbitrary acoustic beams for medical imaging. However, PMUT arrays have so far failed to combine the wide, high-frequency bandwidth needed to achieve a high axial resolution. In this paper, a polydimethylsiloxane (PDMS) backing structure is introduced into the PMUTs to improve the device bandwidth while keeping a sub-wavelength (λ) pitch. We implement this backing on a 16 × 8 array with 75 µm pit

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7

Choi, Jae Hoon, and Kwan Kyu Park. "2D Sparse Array Transducer Optimization for 3D Ultrasound Imaging." Journal of the Korean Society for Nondestructive Testing 34, no. 6 (2014): 441–46. http://dx.doi.org/10.7779/jksnt.2014.34.6.441.

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8

Bybi, Abdelmajid, Driss Khouili, Christian Granger, Mohammed Garoum, Ahmed Mzerd, and Anne-Christine Hladky-Hennion. "Experimental Characterization of A Piezoelectric Transducer Array Taking into Account Crosstalk Phenomenon." International Journal of Engineering and Technology Innovation 10, no. 1 (2020): 01–14. http://dx.doi.org/10.46604/ijeti.2020.4348.

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Ultrasonic transducer arrays are generally composed of several piezoelectric elements arranged in 1D or 2D ways. Crosstalk is an undesirable phenomenon decreasing the performance of these devices. It generates parasitic displacements at the elements' radiating surfaces, which changes the directivity of the array. Furthermore, the transducer's displacement plays a critical role in terms of the focal area and transferred intensities. The objective of this paper is to characterize a piezoelectric array composed of seven-elements made of PZ 27 ceramic experimentally. It investigates the effects of

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9

Hua, Shao Yan, Yu Chi Ming, and Ming Yue Ding. "Computer Simulation for Medical Ultrasound C-Mode Imaging Based on 2d Array." Advanced Materials Research 532-533 (June 2012): 719–23. http://dx.doi.org/10.4028/www.scientific.net/amr.532-533.719.

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C-mode imaging is one of the ultrasound imaging modalities. Compared with other modalities, e.g. A-mode, B-mode, M-mode, and Doppler, C-mode is mainly developed and used in industry testing. The potential of C-mode imaging for medical application has not been fully explored. In this paper, we design one 2-d plane array transducer through using the point spread function (PSF), and apply the 2d array transducer for C-mode imaging. The simulation results show that the generated C-mode images can display the anatomic structure and the pathological changes on the biological tissue.

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10

Joshi, Sanjog Vilas, Sina Sadeghpour, and Michael Kraft. "Polyimide-On-Silicon 2D Piezoelectric Micromachined Ultrasound Transducer (PMUT) Array." Sensors 23, no. 10 (2023): 4826. http://dx.doi.org/10.3390/s23104826.

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This paper presents a fully addressable 8 × 8 two-dimensional (2D) rigid piezoelectric micromachined ultrasonic transducer (PMUT) array. The PMUTs were fabricated on a standard silicon wafer, resulting in a low-cost solution for ultrasound imaging. A polyimide layer is used as the passive layer in the PMUT membranes on top of the active piezoelectric layer. The PMUT membranes are realized by backside deep reactive ion etching (DRIE) with an oxide etch stop. The polyimide passive layer enables high resonance frequencies that can be easily tuned by controlling the thickness of the polyimide. The

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