Title :
Designation and Implementation of Tube Test System Based on Multi-Frequency Eddy Current
Author :
Gao Jun-zhe ; Pan Meng-chun ; Luo Fei-lu
Author_Institution :
Coll. of Mecha-Electron. Eng. & Autom., Nat. Univ. of Defense Technol., Changsha
Abstract :
The tube is a key mechanical component in industry, and the test of tubes is very important. The interference can be eliminated effectively in multi-frequency eddy current tube test. This paper designed a multi-frequency eddy current test (ECT) system based on direct digital synthesizer (DDS) technique, and the phase rotation and subtraction arithmetic was applied in it. Then we did some test experiments in tube specimen. The experiments show that this system works well, detects defects sensitively and eliminates the support plate interference effectively.
Keywords :
direct digital synthesis; eddy currents; mechanical testing; pipes; direct digital synthesizer; mechanical component; multifrequency eddy current test system; phase rotation; subtraction arithmetic; tube test system; Automatic testing; Circuit testing; Eddy current testing; Eddy currents; Electrical capacitance tomography; Frequency; Interference elimination; Switches; Switching circuits; System testing;
Conference_Titel :
Intelligent Systems and Applications, 2009. ISA 2009. International Workshop on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3893-8
Electronic_ISBN :
978-1-4244-3894-5
DOI :
10.1109/IWISA.2009.5072829
