Ultrasonic Phased Array Sparse TFM Imaging Based on Virtual Source and Phase Coherent Weighting

Yang, Jung–Min; Luo, Lin; Yang, Kai

doi:10.1109/access.2020.3030246

Cited by 19 publications

(7 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The virtual instrument software system comprises the Double Data Rate 3 (DDR3) control module [18], virtual oscilloscope module [19], virtual signal source module [20], and virtual logic analysis module.…”

Section: Design Of the Remote Experiments Module For Electronicmentioning

confidence: 99%

Course Teaching Design and Practice Analysis by Intelligent Electronic Technology under Big Data

Li¹

2022

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

The exploration expects to improve the teaching quality of the electronic technology distance course. The teaching management system of the electronic technology network course is constructed based on a flipped classroom. Firstly, the idea of the flipped classroom is analyzed, and the electronic technology course is designed. Secondly, the teaching management system of the electronic technology network course is established, and the remote experiment module is discussed. Finally, the questionnaire survey is made to investigate the use effect of the system. The results show that about 79% of the students are satisfied with the system. About 80% think it allows them to focus on the teaching process. Only 1.3% think that this system does not work for their learning. This shows that the system can help students improve their learning efficiency. However, the main defect is the lack of a real-time feedback module for users on the application effect of the system. In a word, the exploration provides a reference for developing and designing the follow-up network course teaching system.

show abstract

Section: Design Of the Remote Experiments Module For Electronicmentioning

confidence: 99%

Course Teaching Design and Practice Analysis by Intelligent Electronic Technology under Big Data

Li¹

2022

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

show abstract

“…Later, the synthetic aperture method of Virtual Source Aperture (VSA) was proposed. The VSA not only increases the processing speed exponentially, but also maintains good lateral resolution and signal-to-noise ratio by comparing the processing speed parameters of the FMC/TFM, the SATFM [63,64], and the VSA method [65]. The artificial defects of complex welding materials were detected and evaluated successfully using TFM [66][67][68], and the influence of thickness and material attenuation on volumetric inspection was researched using conventional and advanced TFM-based ultrasonic arrays [69].…”

Section: Total Focusing Methodsmentioning

confidence: 99%

Sound Field Modeling Method and Key Imaging Technology of an Ultrasonic Phased Array: A Review

Wang

2022

Applied Sciences

View full text Add to dashboard Cite

An ultrasonic phased array consists of multiple ultrasonic probes arranged in a certain regular order, and the delay time of the excitation signal sent to each array element is controlled electronically. The testing system model based on ultrasonic propagation theory is established to obtain a controllable and focused sound field, which has theoretical and engineering guiding significance for the calculation and analysis of ultrasonic array sound fields. Perfecting array theory and exploring array imaging methods can obtain rich acoustic information, provide more intuitive and reliable research results, and further the development of ultrasonic phased-array systems. This paper reviews the progress of research on the application of ultrasound arrays for non-destructive testing (NDT) and brings together the most relevant published work on the application of simulation methods and popular imaging techniques for ultrasonic arrays. It mainly reviews the modeling approaches, including the angular spectrum method (ASM), multi-Gaussian beam method (MGB), ray tracing method, finite element method (FEM), finite difference method (FDM), and distributed point source method (DPSM), which have been used to assess the performance and inspection modality of a given array. In addition, the array of imaging approaches, including the total focusing method (TFM), compression sensing imaging (CSI), and acoustic nonlinearity imaging (ANI), are discussed. This paper is expected to provide strong technical support in related areas such as ultrasonic array testing theory and imaging methods.

show abstract

“…Firstly, it is necessary to have a basic understanding of Total Focusing Method (TFM) ultrasound imaging. This algorithm is based on full matrix capture (FMC), and if the phased array probe has N elements, a total of N × N transmit and receive operations need to be completed [90][91][92]. This means that the ultrasound is first transmitted by element 1, and all elements receive the signals.…”

Section: Hadamard Spatial Encodingmentioning

confidence: 99%

Coded Excitation for Ultrasonic Testing: A Review

Weng,

Gu,

Jin

2024

Sensors

View full text Add to dashboard Cite

Originating in the early 20th century, ultrasonic testing has found increasingly extensive applications in medicine, industry, and materials science. Achieving both a high signal-to-noise ratio and high efficiency is crucial in ultrasonic testing. The former means an increase in imaging clarity as well as the detection depth, while the latter facilitates a faster refresh of the image. It is difficult to balance these two indicators with a conventional short pulse to excite the probe, so in general handling methods, these two factors have a trade-off. To solve the above problems, coded excitation (CE) can increase the pulse duration and offers great potential to improve the signal-to-noise ratio with equivalent or even higher efficiency. In this paper, we first review the fundamentals of CE, including signal modulation, signal transmission, signal reception, pulse compression, and optimization methods. Then, we introduce the application of CE in different areas of ultrasonic testing, with a focus on industrial bulk wave single-probe detection, industrial guided wave detection, industrial bulk wave phased array detection, and medical phased array imaging. Finally, we point out the advantages as well as a few future directions of CE.

show abstract

Ultrasonic Phased Array Sparse TFM Imaging Based on Virtual Source and Phase Coherent Weighting

Cited by 19 publications

References 25 publications

Course Teaching Design and Practice Analysis by Intelligent Electronic Technology under Big Data

Course Teaching Design and Practice Analysis by Intelligent Electronic Technology under Big Data

Sound Field Modeling Method and Key Imaging Technology of an Ultrasonic Phased Array: A Review

Coded Excitation for Ultrasonic Testing: A Review

Contact Info

Product

Resources

About