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Full-matrix data based ultrasonic all focusing and imaging system

An imaging system and a full-matrix technology, applied in the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, detection of response signals, etc., can solve problems such as low precision and achieve rapid acquisition effects

Pending Publication Date: 2017-06-06
BEIJING UNIV OF TECH
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Problems solved by technology

[0005] The existing ultrasonic phased array system can only achieve real-time focusing of a single point in space, and only uses its amplitude information for imaging with lower precision than when using both amplitude and phase information, and can only be used for body wave phased imaging, etc. Problem: The present invention proposes an ultrasonic all-focus imaging system, which can be used for both body wave detection and ultrasonic guided wave detection

Method used

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  • Full-matrix data based ultrasonic all focusing and imaging system
  • Full-matrix data based ultrasonic all focusing and imaging system
  • Full-matrix data based ultrasonic all focusing and imaging system

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Embodiment Construction

[0022] Step 1: Detection system construction and parameter setting;

[0023] (1) According to figure 1 Based on the ultrasonic all-focus imaging system, a detection system is built; the system includes a computer 1, a multi-channel synchronous data acquisition card 2, a multi-channel ultrasonic excitation receiving phased array board 3, and an ultrasonic probe array 4. The computer 1 is connected to the multi-channel synchronous data acquisition card 2 through a signal line, the multi-channel synchronous data acquisition card 2 is connected to the multi-channel ultrasonic excitation receiving phased array board 3, and the multi-channel ultrasonic excitation receiving phased array board 3 is connected to the Ultrasonic probe arrays 4 are connected. The aluminum plate used in the detection experiment in this paper has a size of 1000mm×500mm×1mm. The ultrasonic probe array uses 8 piezoelectric array elements, the array element size is 6mm×6mm×0.5mm, the array element interval i...

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Abstract

The invention discloses a full-matrix data based ultrasonic all focusing and imaging system. According to the system, a detection system is established by taking an ultrasonic all focusing and imaging system as a base; corresponding parameters of an excitation signal and a receiving signal are set respectively, and excitation and receiving signal parameters are set according to an imaging region; an excitation delay parameter is set according to a wanted imaged type; and a sensor array is carried to collect full-matrix data, imaging parameters are set according to the full-matrix data to carry out all focusing and imaging on a detection region, and a detection result is intuitively expressed.

Description

technical field [0001] The invention relates to an ultrasonic imaging system, in particular to an ultrasonic all-focus imaging system based on full-matrix data, belonging to the field of non-destructive testing. Background technique [0002] Ultrasonic testing technology is favored by non-destructive testing engineers and technicians because of its flexible testing, which can be used not only for internal defect detection of structures but also for surface defect detection. As a new type of ultrasonic testing method, phased array ultrasonic technology controls each array element in the probe array through the electronic system, regularly excites and receives ultrasonic waves according to a certain delay time, and controls the deflection and focusing of the ultrasonic beam to realize the test. Non-destructive testing of internal defects. Therefore, phased array ultrasound technology has the advantages of fast, accurate, and strong adaptability. [0003] Commercial phased ar...

Claims

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Application Information

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IPC IPC(8): G01N29/22G01N29/36G01N29/44G01N29/06G01N29/04
CPCG01N29/221G01N29/041G01N29/043G01N29/069G01N29/36G01N29/449G01N2291/023G01N2291/0289
Inventor 焦敬品李立李光海吴斌何存富
Owner BEIJING UNIV OF TECH
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