Ultrasonic array concrete detection system based on synthetic aperture focusing imaging

Abstract

The invention relates to an ultrasonic array concrete detection system based on synthetic aperture focusing imaging. The system is mainly used for detecting defects in damaged concrete. The ultrasonicarray concrete detection system based on synthetic aperture focusing imaging comprises a main control processing module, an ultrasonic signal stimulation module, an ultrasonic signal receiving module, an ultrasonic array energy converter module and an image displaying module. Due to the fact that the detection system adopts an ultrasonic array energy converter with receiving and transmitting integration and is combined with a synthetic aperture focusing imaging algorithm, during actual use, the problems are solved that a common concrete ultrasonic detection system is small in detection area and low in detection efficiency, a receiving energy converter is difficultly aligned with a transmitting energy converter, and a detection result is difficult to judge, and the ultrasonic array concrete detection system has high accuracy and applicability in application in a detection site for the defects in the damaged concrete.

Description

technical field [0001] The invention belongs to the technical field of nondestructive testing, and in particular relates to an ultrasonic array concrete testing system based on synthetic aperture focusing imaging. Background technique [0002] As a material with strong plasticity, good durability and high strength, concrete is widely used in production and life. However, due to environmental or human factors, cracks, cavities and undense areas will inevitably appear inside during use. These The appearance of defects seriously affects the bearing capacity and durability of concrete, so it is particularly important to quickly and accurately detect internal defects in concrete. [0003] The traditional concrete ultrasonic non-destructive testing system only collects single or dual-channel data, and repeated experiments are required to obtain multi-point data point by point. Although this system is simple to operate, the process is cumbersome, heavy workload, time-consuming and ...

AI Technical Summary

Problems solved by technology

[0003] The traditional concrete ultrasonic non-destructive testing system only collects single or dual-channel data. Obtaining multi-point data requires repeated experiments point by point. Although this system is simple to operate, the process is cumbersome, the workload is heavy, and time-consuming and manpower

At the same time, because only the collected one-dimensional signal is analyzed and processed, the detection accuracy and system resolution of the traditional detection system are reduced. Due to the great influence of environmental noise and bottom echo signals, the defect signal may be obliterated, so that the internal defects of concrete Increased missed detection rate

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