A Digital Electromagnetic Induction Measurement System Based on FPGA

被引：2
作者：
Wang, Chao [1 ]
Meng, Jian [1 ]
Huang, Chunyan [1 ]
Yin, Wuliang [1 ,2 ]
Yan, Yong [3 ]
Wang, Huaxiang [1 ]
机构：
[1] Tianjin Univ, Sch Elect Engn & Automat, Tianjin 300072, Peoples R China
[2] Univ Manchester, Sch Elect & Elect Engn, Manchester M60 1QD, Lancs, England
[3] Univ Kent, Dept Elect, Canterbury CT2 7NT, Kent, England
来源：
2008 IEEE INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, VOLS 1-5 | 2008年
基金：
中国国家自然科学基金;
关键词：
Electromagnetic measurement; FPGA; multi-frequency excitation; digital demodulation;
D O I：
10.1109/IMTC.2008.4547129
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Electromagnetic measurement has advanced rapidly in recent years because of its characteristics of non-contact and non-invasion nature. This paper presents an electromagnetic measurement system based on Field Programmable Gate Arrays (FPGA). The core of the system is a FPGA chip in which DDS, FIFO, digital demodulation module and MCU are embedded The system consists of a flexible multi-frequency excitation source and a high-precision dual-channel voltage/current measurement unit. The sensing voltage and the excitation current can be measured synchronously to acquire the induction impedance. Digital demodulation technology under FPGA support is used to obtain the amplitude and phase information of the measured signal. Experimental work is undertaken to assess the feasibility of the system.
引用
收藏
页码：712 / +
页数：2
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