The Design Of The Ultrasonic Nondestructive Testing System Based On The EMAT
College of Automation and Electrical Engineering. Qingdao University of Science and Technology. Qingdao 266042. china
2 Xinjiang Technical Institute of Physics and Chemistry. CAS, Urumuqi, Xinjiang, 830011, China
a Urumqi Xiaming Innovation Electronic Technology Co.,Ltd, Urumuqi, Xinjiang, 830011, China
This paper introduces a kind of based on the electromagnetic acoustic transducer (EMAT) metal pipeline detection system, fusion of two dimensional orientation, shape unique technological innovation, implementation of various metal pipe wall corrosion situation of rapid, accurate, fully automated non-destructive testing.In the aspect of hardware design, single-chip microcomputer control was achieved by C language programming the launch of the pulse signal. Pulse signal was sent to launch circuit, ultrasonic signal. Design of preamplifier, controllable gain amplifier two-stage amplifier circuit for receiving signal is amplified. Including data acquisition circuit detection circuit and A/D conversion circuit, single chip microcomputer and the LabVIEW platform via A serial port communication agreement. In the aspect of software design, the design of the EMAT pipe nondestructive testing system based on LabVIEW human-computer interaction interface.
Key words: EMAT / Ultrasound / Non-destructive testing / Pipeline detection
© Owned by the authors, published by EDP Sciences, 2016
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