Ultrasonic Phased Array Transducer Device with One-Dimensional Hinged Array Structure

Abstract

An ultrasonic phased array transducer device with a one-dimensional hinge array structure belongs to the equipment in the field of ultrasonic detection technology. The upper part of the device is a fixed bracket, and the connecting rods are fixedly connected with the fixed bracket and the hinge array respectively; the voice coil motor is connected by a connecting rod Arranged centrally symmetrically and fixed on the fixed bracket; one end of the output rod is connected to the coil of the voice coil motor, and the other end is connected to the upper surface of the array unit of the one-dimensional hinge array; the piezoelectric array element is fixedly connected under each unit of the one-dimensional hinge array Surface; the number of voice coil motors and output rods is 2N (N=1, 2, 3, 4, 5), and the number of piezoelectric array elements is 2N+1. Select different N according to the size of the test piece value. By adjusting the current of each voice coil motor coil, the corresponding output rod is displaced, and the hinge array unit and the piezoelectric array element fixed below can be pushed out and retracted, and the one-dimensional hinge array is driven to generate deformation so that the piezoelectric array element and the waiting The surface of the test piece is completely bonded, so it can be applied to the detection of the workpiece to be tested with a flat or curved surface, and can be combined with the delay law to realize the focus and deflection of the ultrasonic wave.

Description

technical field [0001] The invention belongs to equipment in the technical field of ultrasonic detection, and mainly relates to an ultrasonic phased array transducer device with a one-dimensional hinge array structure. Background technique [0002] With the introduction of Industry 5.0, manufacturing has become more intelligent, and the industry is also known as a smart factory. People have also put forward higher requirements for the safety and reliability of equipment and products. As a technology that can not damage or affect the performance of the test object, non-destructive testing technology has been widely used in the field of testing. Ultrasonic testing technology is one of the commonly used non-destructive testing technologies. Ultrasonic testing is closely combined with the ever-changing modern science and technology, which constantly breeds new connotations and expands broad extensions. In the field of ultrasonic testing, a research hotspot in recent years is u...

AI Technical Summary

Problems solved by technology

The problem with this device is that the structure of the probe is relatively fixed and cannot be applied to the detection of workpieces to be tested on various surfaces

The problems of this device are: the electromagnetic conversion efficiency is low, the sensitivity depends on the gap between the probe and the flaw detection object, and special fixtures are required for detection

The problem with this device is that it is impossible to realize the non-destructive detection of crack defects on the curved surface.

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