Non-destructive testing device using the non-contact method of electromagnetic-acoustic wave excitation and the contact method of picking up the signal. Modernization and validation of the device

The control of linearly extended objects, such as pipes and rods in oil and gas and rails, shafts in the transport industry, is an important urgent task. In this regard, the problem arises of creating a set of instruments for monitoring extended objects of optimal cost and with the greatest sensitivity to small and incipient defects. The diagram and principle of operation of a device for waveguide non-destructive testing using the non-contact method of electromagnetic-acoustic wave excitation and contact method of picking up an acoustic signal with its subsequent processing by an entry-level personal computer (PC) having any system software are described. The software and hardware solutions that allow increasing the level of excitation of a wave packet and reducing the measurement error due to analog and digital filtering and efficient signal processing are presented. The program methods providing higher accuracy in determining the coordinates of defects in steel samples are considered. One of the modernization methods is the use of mass high-performance microcontrollers. In this work, it is proposed to use a high-performance module from STMicroelectronics, which made it possible to simplify and reduce the cost of the device and meet the requirements for device validation.