Influence of excitation current characteristics on sensor sensitivity of permeability testing technology based on constant current source
- 10.2991/iceesd-18.2018.210How to use a DOI?
- nondestructive testing; permeability testing; excitation source; detection sensor; detection sensitivity
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 excitation current frequency, excitation current amplitude on the detection sensitivity were studied. The study shows that the detection sensitivity is related to excitation frequency, which exists extremes with the changing relationship of frequency; The detection sensitivity increases with the increase of excitation current, and shows a linear relationship. The research can provide reference for the development of high sensitivity magnetic permeability detector.
- © 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 AU - Qingquan Fan PY - 2018/05 DA - 2018/05 TI - Influence of excitation current characteristics on sensor sensitivity of permeability testing technology based on constant current source BT - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018) PB - Atlantis Press SP - 1149 EP - 1153 SN - 2352-5401 UR - https://doi.org/10.2991/iceesd-18.2018.210 DO - 10.2991/iceesd-18.2018.210 ID - Ren2018/05 ER -