Title :
Research on power source of electromagnetically induced acoustic emission technique based on DSP
Author :
Liu, Suzhen ; Wang, Hongwei ; Zhang, Chuang ; Jin, Liang ; Yang, Qingxin
Author_Institution :
Province-Minist. Joint Key Lab. of Electromagn. Field & Electr. Apparatus Reliability, Hebei Univ. of Technol., Tianjin, China
Abstract :
A power source designed for electromagnetically induced acoustic emission (EMAE) is developed. The power source is used to load eddy current as electromagnetic stimulation to produce acoustic emission signals. The core of power source system is the control circuit which is based on 32-bit digital signal processor (DSP) chip TMS320F2812. Trigger pulse can be regulated through the variation of the program parameters so the performance of trigger pulse is flexible. Therefore, the frequency and the waveform of the power source can be transformed. Test result shows the reliable and stable power has achieved the loading demand of the EMAE.
Keywords :
acoustic emission; digital signal processing chips; eddy currents; DSP; acoustic emission signals; eddy current; electromagnetically induced acoustic emission technique; power source; trigger pulse; Acoustic emission; Digital signal processing; Insulated gate bipolar transistors; Integrated circuit reliability; Manganese; Pulse width modulation; DSP; electromagnetically induced acoustic emission; power source;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2010 8th World Congress on
Conference_Location :
Jinan
Print_ISBN :
978-1-4244-6712-9
DOI :
10.1109/WCICA.2010.5555068
