Ultrasonic Probe Angle Automatic Testing System and Testing Method for Wheel Axle Testing

Abstract

The invention discloses an automatic testing system for the angle of an ultrasonic probe dedicated to wheel axle detection, which includes an FPGA module, an ultrasonic transmitting module, an ultrasonic receiving module, a signal conditioning module, and an AD sampling module 、 Gate position control module, gate width control module, MCU module and man-machine interface module; the ultrasonic transmitting module is connected to the probe, the ultrasonic receiving module is connected to the probe, the signal conditioning module is connected to the ultrasonic receiving module, the AD sampling module is connected to the signal conditioning module, The FPGA module is connected to the ultrasonic transmitting module and the AD sampling module, the gate position control module and the gate width control module are respectively connected to the FPGA module, the MCU module is connected to the FPGA module, and the man-machine interface module is connected to the MCU module. The test result of the present invention has high accuracy and reduces the influence of human factors on test data.

Description

technical field [0001] The invention relates to a probe angle automatic test system and a test method, in particular to a special ultrasonic probe angle automatic test system and test method for wheel axle detection. Background technique [0002] Railway transportation is an important part of the national economy, and the safety of railway transportation is very important. Regular detection of freight axles plays an important role in ensuring the safety of railway traffic. Ultrasonic flaw detection has the advantages of high sensitivity, strong penetration speed, good sound beam directivity, high defect detection rate and harmless to human body, etc. It has become the main method of railway axle detection. As an ultrasonic transmitting and echo receiving device, the ultrasonic probe is an important part of the entire detection system. Its performance directly affects the accuracy of ultrasonic flaw detection, and is one of the keys to ensure the quality of flaw detection. ...

AI Technical Summary

Problems solved by technology

[0005] Due to the different operating methods of the testers, the marked incident point is not accurate, resulting in inaccurate test angle values ​​and poor consistency.

Moreover, the operation is inconvenient, the test time is long, the labor intensity is high, the test efficiency is low, and the human factors are relatively large.

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