TY  - EJOU
AU  - Xu, Lingda 
AU  - Zhang, Dandi 
AU  - Zhou, Jun 
AU  - He, Zhou 
AU  - Fang, Xiao 
AU  - Zhi, Yonglin 

TI  - A Novel Trenchless Detection Technology Based on Transient Electromagnetic Method for Power Poles
T2  - Energy Engineering

PY  - 2020
VL  - 117
IS  - 1
SN  - 1546-0118

AB  - For the application of inspecting the construction status of distribution network poles, this paper proposed a novel detection technology for base plates, pulling plates, chucks (abbreviated as BPC) which are buried together with the power poles based on exerting external current excitation. The detection system consists of lead wires for BPC, an excitation generating circuit, a signal receiving coil, a signal conditioning circuit and an embedded processor. Compared with the traditional transient electromagnetic method, this technology is more suitable for detecting BPC which are buried shallowly, with higher sensitivity for depth changes and higher signal-to-noise ratio. Moreover, it can judge the integrity and connection condition of the BPC’s metallic frameworks. The feasibility of this method is verified by simulations and experiments based on a prototype device.
KW  - Formatmetal detection; nondestructive detecting; signal processing; transient electromagnetic method

DO  - 10.32604/EE.2020.010409