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Ultrasonic phased array micro-cavitation micro-fluidic detection system

An ultrasonic phased array and detection system technology, applied in the analysis of solids using sonic/ultrasonic/infrasonic waves, material analysis using sonic/ultrasonic/infrasonic waves, and measuring devices, etc., can solve problems such as omission of crack detection and incomplete workpiece detection. , to improve the detection accuracy, facilitate remote control, improve the degree of automation and intelligence

Pending Publication Date: 2020-08-14
CHINA JILIANG UNIV
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Problems solved by technology

[0004] However, when the existing ultrasonic phased array detection system detects irregularly shaped workpieces, due to the relationship between the emission angle, it is difficult to effectively target various areas of the workpiece, especially hidden areas or blind areas, resulting in insufficient detection of workpieces. Prone to missed crack detection

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  • Ultrasonic phased array micro-cavitation micro-fluidic detection system

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Embodiment 1

[0036] see Figure 1-3, Ultrasonic phased array microcavitation microfluidic detection system, including a local detection system, the local detection system includes appearance acquisition module 1, image processing module 2, detection and positioning module 3, trajectory generation module 4, workpiece placement module 5, ultrasonic phase The array detection module 6 and the central control module 7, the appearance acquisition module 1 includes no less than 6 high-definition cameras, and at least six directions corresponding to the workpiece should be observed to ensure the complete acquisition of the appearance of the workpiece. The image processing module 2 includes The image enhancement unit, filter processing unit, gray scale conversion unit, feature extraction unit and image segmentation unit can easily obtain the best detection track and the best detection angle after image processing, and find hidden points that cannot be directly detected in advance. The workpiece pla...

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Abstract

The invention discloses an ultrasonic phased array micro-cavitation micro-fluidic detection system, and belongs to the technical field of nondestructive testing. The appearance of a workpiece can be collected firstly; image processing is carried out after the shape is obtained; then, an optimal detection track is generated after data calculation and processing; for a hidden point, a proper ultrasonic reflecting plate is arranged in advance; the optimal detection position and angle for hidden point detection are adjusted according to the arrangement direction and position; and then an ultrasonic phased array detection module positions the workpiece according to the generated track and hidden points to guarantee all-around complete non-destructive testing of the surface of the workpiece, adjusts the angle of a probe in real time to enable the transmitting direction of ultrasonic waves to be always perpendicular to the surface of the workpiece in order to achieve high-precision non-destructive testing. The system is particularly suitable for irregular workpieces with hidden areas, and has great market popularization value.

Description

technical field [0001] The invention relates to the technical field of nondestructive testing, and more specifically, to an ultrasonic phased array microcavitation microfluidic testing system. Background technique [0002] The basic idea of ​​ultrasonic phased array technology comes from radar electromagnetic wave phased array technology. Phased array radar is composed of many radiation units arranged in an array. By controlling the amplitude and phase of each unit in the array antenna, the radiation direction of electromagnetic waves is adjusted, and a flexible and fast focused scanning radar beam is synthesized within a certain space range. The ultrasonic phased array transducer is composed of a plurality of independent piezoelectric wafers. According to certain rules and timing, the electronic system is used to control and excite each wafer unit to adjust and control the position of the focus and the direction of focus. [0003] Ultrasonic phased array technology has a h...

Claims

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Application Information

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IPC IPC(8): G01N29/04G01N29/265G01N29/28
CPCG01N29/04G01N29/265G01N29/28G01N2291/023G01N2291/0289G01N2291/2698Y02A90/30
Inventor 邱嘉诚李琛张蓬军俞晓平
Owner CHINA JILIANG UNIV
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