Study on High Resolution Transient Electromagnetic Detecting Device Based on FPGA

The transient electromagnetic detecting device is researched in this paper, Firstly, the developing scheme of detecting device system is made based on FPGA control. Secondly, functional circuits such as transmission circuit with fast switch off, data acquisition circuit with high resolution A/D converter, inherent safe explosion-proof power circuit and high speed control technology was develop with large scale FPGA chip and PC104 control. Finally, The result of test show that the developed high resolution transient electromagnetic detecting system is characterized by fast switch off of transmission, high sampling rate, wide dynamic range.