Flaw detector

Abstract

The invention discloses a flaw detector which comprises a controller and a detection probe, wherein the detection probe is electrically connected with the controller through a wire. The controller comprises a power amplifying circuit module, a prefixed amplifying circuit module, an extracting module and a microprocessor, wherein the power amplifying circuit module, the prefixed amplifying circuit module and the extracting module are sequentially electrically connected, and an output end of the extracting module is electrically connected with an input interface of the microprocessor; the detection probe comprises a flexible exciting coil and a flexible array detecting coil, wherein the flexible exciting coil is arranged on one side of the flexible array detecting coil, and the flexible exciting coil and the flexible array detecting coil can generate mutual magnetic field induction; the flexible exciting coil is used for exciting signals and generating an alternating magnetic field; the flexible array detecting coil is used for generating induced voltage signals; the extracting module is used for extracting peak value information of the induced voltage signals; the microprocessor is used for analyzing flaws of an object to be detected and obtaining flaw information of the object to be detected. By means of arranging the detection probe, the detection efficiency is improved.

Description

technical field [0001] The present invention relates to the field of flaw detectors, and more specifically, to a flaw detector. Background technique [0002] With the rapid development of the economy and the acceleration of the pace of life, people travel more and more frequently, which greatly increases the pressure on rail transit. As an important part of the rail transit, the bogie not only bears the weight of the car body but also reduces The functions of vibration, guidance, traction, and braking, so the performance of the bogie determines the operating speed of the train and the comfort of passengers. During or in use, strict testing of the bogie frame is the basis for ensuring the safe and reliable operation of the EMU. [0003] In motor vehicle maintenance, bogie maintenance technology is one of the key technologies, especially with the development of high-speed railway technology, bogie maintenance technology is very important. The detection is not only inefficien...

AI Technical Summary

Problems solved by technology

[0003] In motor vehicle maintenance, bogie maintenance technology is one of the key technologies, especially with the development of high-speed railway technology, bogie maintenance technology is very important. It is not only inefficient, but also has a large subjective error and is easy to damage the structure and performance of the bogie

[0004] In summary, the existing bogie maintenance technology has problems of low efficiency, large subjective errors, and easy damage to the structure and performance of the bogie

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