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

fYear

2010

Firstpage

5418

Lastpage

5421

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation (WCICA), 2010 8th World Congress on

Conference_Location

Jinan

Print_ISBN

978-1-4244-6712-9

Type

conf

DOI

10.1109/WCICA.2010.5555068

Filename

5555068