DANG Junpeng, JIANG Bo, LI Kang, et al. Design and simulation optimization of open-close dual-magnetic-circuit fluxgate current sensor[J]. 2026, 45(6): 108-112.
DANG Junpeng, JIANG Bo, LI Kang, et al. Design and simulation optimization of open-close dual-magnetic-circuit fluxgate current sensor[J]. 2026, 45(6): 108-112.DOI:
Fluxgate current sensor is widely used because of its high precision
small size
non-contact current detection
and simple structure.The sensor probe is the core component of the fluxgate sensor
which consists of excitation coils
induction coils and magnetic cores.In order to facilitate current detection in power systems
an open-close dual-magnetic-circuit probe is optimized and designed based on the traditional fluxgate current sensor.The influences of key parameters
such as excitation frequency and number of magnetic core layers on the probe’s excitation current and induced electromotive force are analyzed by the finite element analysis method.Through simulation
the sensitivity and linearity of the fluxgate current sensor reach 79mV/A and 0.11%