Automatic scanning device for ultrasonic phased array flat panel detection

Abstract

The invention discloses an automatic scanning device for ultrasonic phased array flat panel detection. The automatic scanning device comprises a sliding rail used for fixedly installing a flat panel part, a connecting rod support slidably matched with the sliding rail, and a probe groove in the connecting rod support, wherein the probe groove is used for installing a probe. The automatic scanningdevice is suitable for materials of different thicknesses, the device is suitable for detection of detection areas of different widths, the device is suitable for phased array probes of different sizes, and the device can be used for detection of straight welding joints and specified parts of a flat panel material part; the device is suitable for automatic scanning of various materials, such as metal and ceramics, and the detection precision and efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of ultrasonic detection, in particular to an automatic scanning device for ultrasonic phased array flat panel detection. Background technique [0002] The principle of ultrasonic phased array is similar to that of conventional ultrasonic detection, both of which are based on the principle of pulse reflection method. Compared with conventional ultrasound, the advantages of ultrasonic phased array mainly include the following aspects: [0003] (1) The phased array adopts S-scan, that is, it can have ultrasonic waves from many angles at the same time, which is equivalent to having probes with multiple angles working at the same time, so the phased array does not need sawtooth scanning, just move the probe along the weld, The detection efficiency is higher. Suitable for automated production, and mass production. [0004] (2) Phased array can have focusing function, but conventional ultrasonic generally does n...

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Problems solved by technology

[0005] (3) Phased array inspection can have B-scan, D-scan, S-scan and C-scan at the same time, and a three-dimensional graphic can be established through modeling. The defect display is very intuitive, even people who do not understand NDT can understand it, and Conventional ultrasound can only distinguish defects by waveform

[0006] (4) Ultrasonic phased array can detect complex workpieces, such as the blade root of turbine blades. Conventional ultrasonic detection has a large blind area because of the single beam angle of the probe, resulting in missed detection

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