Open AccessResearch on magnetic field size and coil parameters based on non-contact magnetic induction detection of corroded rebars in infrastructure
Author(s) -
Jingsong Xiong,
Chuan Chen,
Huarui Ye,
Pengfei Gan
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/508/1/012200
Subject(s) - electromagnetic coil , magnetic field , electromagnetic induction , induction coil , attenuation , electrical engineering , magnetic reactance , service life , acoustics , engineering , materials science , computer science , mechanical engineering , magnetic energy , electronic engineering , physics , optics , magnetization , quantum mechanics
Non-contact magnetic induction detection is widely used in infrastructure testing due to its advantages. How to choose the appropriate magnetic field and the corresponding coil parameters is very important for electromagnetic detection. Excessive magnetic field causes excessive coil power consumption, which leads to serious heating and affects the service life of the equipment; however, if the magnetic field is too small, the detection accuracy will be reduced due to the attenuation of the magnetic field. This paper first analyzes the principle of magnetic induction detection, then the simulation analysis is carried out based on the buried depth and type of rebar commonly used in infrastructure to choose the appropriate magnetic field size.