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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  • Abstract
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  • Application Information

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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 in

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

Examples

Experimental program
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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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