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High-frame-rate ultrasonic full-focus imaging system based on FPGA

An imaging system, full-focus technology, applied in the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, processing detection response signals, etc., can solve problems such as low frame rate and poor real-time performance. Achieve the effects of improving the imaging frame rate, optimizing the algorithm architecture, and meeting the real-time detection requirements of high frame rate resolution

Active Publication Date: 2020-03-27
广州多浦乐电子科技股份有限公司
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Problems solved by technology

[0005] The embodiment of the present invention provides an FPGA-based high frame rate ultrasonic all-focus imaging system to solve the problems of low frame rate and poor real-time performance of existing industrial ultrasonic full-focus imaging equipment in high-resolution imaging

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  • High-frame-rate ultrasonic full-focus imaging system based on FPGA
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  • High-frame-rate ultrasonic full-focus imaging system based on FPGA

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] See figure 1 , it can be understood that the principle of ultrasonic total focusing technology is as follows figure 1 shown. Full-focus imaging is realized by virtual focusing and post-imaging processing of the echo data matrix captured by the full matrix. Full matrix capture process: Suppose the probe has N array elements, which are arranged in sequence: array element 0, array element 1, ..., array element N-1. Excite array element 0, N array elements rece...

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Abstract

The invention provides a high-frame-rate ultrasonic full-focusing imaging system based on an FPGA. The system comprises a frame synchronization generation and control module, a multi-array-element excitation module, an ultrasonic signal sampling module, a plurality of groups of effective ultrasonic signal storage modules, a full-focusing sonic path distance receiving module, a full-focusing sonicpath distance access module, a plurality of groups of sonic path distance generation modules, a data processing control module, a plurality of groups of ultrasonic signal superposition modules and animage processing module. By improving the algorithm architecture of the full-focusing technology and optimizing the working process, the imaging frame rate is improved, and high-frame-rate ultrasonicfull-focusing imaging under the same condition is realized, so that the high-frame-rate resolution real-time detection requirement of the market on industrial ultrasonic detection is met.

Description

technical field [0001] The invention relates to the technical field of ultrasonic detection, in particular to an FPGA-based high-frame-rate ultrasonic all-focus imaging system. Background technique [0002] Ultrasonic phased array testing technology is a commonly used method in the field of industrial non-destructive testing. Due to the advantages of fast, accurate and strong adaptability, phased array technology is widely used in actual ultrasonic testing. Since the ultrasonic phased array can only focus on a single point in real time, the imaging resolution and accuracy are limited; in recent years, it has been gradually replaced by the ultrasonic total focusing technology, which is an advanced ultrasonic imaging phased array technology. Acquisition of full-matrix echo data at any point in the measured area and performing virtual focusing can overcome the shortcomings of phased array technology. [0003] Ultrasonic all-focus imaging technology was first proposed by Caroli...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/06G01N29/44
CPCG01N29/0654G01N29/44
Inventor 蔡庆生李振宁骆琦韩淞
Owner 广州多浦乐电子科技股份有限公司
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