吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (5): 1725-1731.doi: 10.13229/j.cnki.jdxbgxb201605050

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Design of transient electromagnetic receiving system based on LabVIEW

YU Sheng-bao, SU Fa, ZHENG Jian-bo, ZHU Zhan-shan   

  1. College of Instrumentation and Electrical Engineering, Jilin University, Changchun 130026, China
  • Received:2015-06-12 Online:2016-09-20 Published:2016-09-20

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Abstract: To overcome the problems of low Signal to Noise Ratio (SNR) and poor anti- interference ability of the transient electromagnetic instrument, a transient electromagnetic receiving system based on LabVIEW and USB4432 acquisition card. For the convenience of application, the system adopts GPS synchronization. To solve the problem of weak SNR during later measurement, a double-channel differential preamplifier circuit is built, which uses low noise amplifier. A fourth-order low-pass filter is also designed using UAF42 to suppress high-frequency noise. To improve the stability and expansibility of the system, a PC control procedure is programmed by Graphical Programming Language. Testing results show that the proposed system can work stably and has high SNR. It can be used to collect transient electromagnetic signal.

Key words: technology of instrument and meter, transient electromagnetic, LabVIEW, receiving system, preamplifier

CLC Number: 

  • TH763
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