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44 / 2021-06-23 17:17:10
Design and Implementation of Towered Transient Electromagnetic System for Unexploded Ordnance Detection
Measurement Systems Design, Characterization, and Evaluation
终稿
gao tianyu / Jilin University
Abstract—This paper designs a towered transient electromagnetic array detection system with multiple transmitters and multiple receivers. This system sensor consists of three single-component transmitting coil and nine three-component receiving coil array. The transmitting coils are optimized by establishing the relationship between the primary field strength and the parameters such as the size, number of turns, and turn-off time of the transmitting coils, and a side length, Cross-sectional area， number of turns, and transmitting current and turn-off time are 1 m, 2.5 mm2, 25 turns, 10A, and 40us, respectively. The three-component receiving coils are optimized through segmented design. The final side length, number of segments, resonant frequency and turn-off time of the receiving coils are respectively 8cm, 8 segments, and 200 kHz. The data acquisition card USB6349+Labview is used to realize the driving of the transmitter and the synchronous acquisition of multi-channel data. Field experiment has been carried out based on the above system, and the experimental results show that this system can accurately detect unexploded ordnance with a buried depth of 2.0m.

Keywords—Transient electromagnetic, Unexploded ordnance, Towered detection system, Full bridge circuit

 
重要日期

  • 会议日期

    10月21日

    2021

    至

    10月23日

    2021

  • 10月26日 2021

    注册截止日期

主办单位
Southeast University, China
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