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On-line detection system and detection method for pipe (bar) ultrasonic phased array

An ultrasonic phased array and detection system technology, which is applied to the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, and measuring devices. Scanning and other issues to achieve the effect of improving detection speed and detection accuracy

Active Publication Date: 2011-09-07
INST OF ACOUSTICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, a single concave phased array transducer cannot scan the full coverage of the pipe, let alone scan and detect longitudinal and transverse defects at the same time

Method used

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  • On-line detection system and detection method for pipe (bar) ultrasonic phased array
  • On-line detection system and detection method for pipe (bar) ultrasonic phased array
  • On-line detection system and detection method for pipe (bar) ultrasonic phased array

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Embodiment Construction

[0024] A pipe (rod) material ultrasonic phased array on-line detection system and detection method of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] figure 1 It is a schematic diagram of the composition of the ultrasonic phased array on-line detection system for pipe (rod) material of the present invention. Such as figure 1 As shown, the ultrasonic phased array on-line inspection system for pipe (rod) material of the present invention includes: multiple concave phased array probes, a high voltage switch array, a multi-channel phased array transmitting and receiving system and a control system. By arranging multiple concave phased array transducer probes around the pipe, the concave ultrasonic phased array transducer probes are used to generate a phased array focused electronically controlled sound field, and at the same time, the multiple switches are controlled by the high-voltage switc...

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Abstract

The invention provides an on-line detection system and an on-line detection method for pipes or bars ultrasonic phased array. The method comprises the following steps of: arranging a plurality of concave surface phased array energy converter probes on planes which are perpendicular to the center lines of the pipes or bars and at the position which forms a certain included angle with the center lines of the pipes or bars at the peripheries of the pipes or the bars; generating an electronic control sound field focused by the phased arrays by utilizing the concave surface phased array energy converter probes; and switching continuously and quickly by utilizing a high-voltage switch array, a multi-channel phased array transmit-receive system and a control system through a high-voltage switch array circuit, and controlling different array elements of the concave surface phased array energy converter to transmit and receive at different moments, so that phased array focusing acoustic beams rotate in the pipes or bars at high speed to realize dynamic focusing and scanning. By the system and the method, the 360-degree full-coverage scanning of the pipes or bars can be realized under the condition that the concave surface phased array energy converter probes are not moved, longitudinal and traverse defects can be scanned and detected, and the detection speed is improved greatly while the detection accuracy is improved.

Description

technical field [0001] The invention relates to an ultrasonic phased array on-line detection system and detection method for pipe (rod) material, which uses multiple concave phased array transducers, a high-voltage switch array and a multi-channel phased array transmitting and receiving system to realize dynamic focusing, so that the focusing The sound beam quickly scans the tube (rod) material, and realizes online detection of longitudinal and transverse defects. Background technique [0002] During the production process of pipe (rod) material, due to various reasons, defects such as cracks will be formed inside it, which poses a great safety and quality hidden danger to safe production. Therefore, the quality inspection of pipe (rod) material is an important part of the inspection before leaving the factory. . In the conventional ultrasonic testing technology, the pipe needs to be continuously rotated while moving in the axial direction (the detection probe does not rota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/26
Inventor 张碧星师芳芳吴先梅宫俊杰章成广
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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