Influence of coil characteristics on sensor sensitivity of permeability testing technology based on constant current source
- DOI
- 10.2991/iceep-18.2018.314How to use a DOI?
- Keywords
- nondestructive testing; permeability testing; excitation coil; detection coil; detection sensitivity
- Abstract
The permeability testing technology is a kind of non-destructive testing method, which based on the change of permeability, can detect the stress concentration state and the degree of fatigue damage for ferromagnetic samples. The detection sensor based on the constant current source has higher detection sensitivity, which overcomes the current negative feedback effect caused by the change of the magnetic circuit impedance of the ordinary constant voltage source. According to the principle of permeability detection, the influence of the number of turns of excitation coil, the number of turns of detection coil on the detection sensitivity were studied. The study shows that the detection sensitivity increases first with the increase of the number of turns of the excitation coil and then approaches the constant. The detection sensitivity increases as the number of turns of the detection coil increase, which is approximately linear relationship. The research can provide reference for the development of high sensitivity magnetic permeability detector.
- Copyright
- © 2018, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Xianzhi Ren AU - Shangkun Ren PY - 2018/09 DA - 2018/09 TI - Influence of coil characteristics on sensor sensitivity of permeability testing technology based on constant current source BT - Proceedings of the 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018) PB - Atlantis Press SP - 1727 EP - 1731 SN - 2352-5401 UR - https://doi.org/10.2991/iceep-18.2018.314 DO - 10.2991/iceep-18.2018.314 ID - Ren2018/09 ER -