Steel plate defect detector based on piezoelectric ceramics

Abstract

The invention discloses a steel plate defect detector based on piezoelectric ceramics, and relates to the technical field of steel plate detection. The steel plate defect detector comprises a shell; an ultrasonic transmitting device, a control circuit, a filter, an encoder and a power supply circuit are arranged in the shell; an ultrasonic receiving device and a display screen are installed outside the shell; the ultrasonic transmitting device is connected with a probe outside the shell through a data line, the ultrasonic receiving device is connected with the filter, the filter is connected with the encoder and the control circuit, and the control circuit is connected with the display screen. According to the piezoelectric ceramic-based steel plate defect detector, a steel plate can be detected by utilizing the stress of the piezoelectric ceramic through ultrasonic waves; and the defect condition of the steel plate is judged by analyzing the received ultrasonic waveform, the operationis very convenient, piezoelectric ceramics are used as an exciter and a sensor, the sensitivity and precision are extremely high, and the detection accuracy is high.

Description

technical field [0001] The invention relates to the technical field of steel plate detection, and in particular, the invention relates to a detection of steel plate defects based on piezoelectric ceramics. Background technique [0002] The connection failure of the steel structure plate and the damage accumulation of the steel are important reasons for the damage of the steel structure. The damage starts from a small defect and gradually expands under the action of the load until the failure of the component is caused. The sudden failure during service often causes major damage. engineering accident. Therefore, it is particularly important to detect various defects in steel plates and make a reasonable assessment of the defects and damages, which is an indispensable means to prevent sudden damage to steel structures. In order to cope with the complexity of the steel structure engineering environment, this detection method must be accurate and reliable, be able to track and ...

AI Technical Summary

Problems solved by technology

[0002] The connection failure of the steel structure plate and the damage accumulation of the steel are important reasons for the damage of the steel structure. The damage starts from a small defect and gradually expands under the action of the load until the failure of the component is caused. The sudden failure during service often causes major damage. engineering accident

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