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Output performance optimization for RTD fluxgate sensor based on dynamic permeability

基于动态磁导率参数的时间差型磁通门传感器的输出响应优化

Abstract

The output performance of residence times difference (RTD) fluxgate may vary under different driving conditions (driving currents and frequencies) and core materials. To optimize the RTD fluxgate and simplify its design process, an analytical model is employed to select the parameters and identify the effective factors that dominate the performance. The dynamic permeability parameters (P i ), which reflect the changes in the magnetization curve, are mathematically analyzed in detail. The linear variation functions of P i in different driving conditions are fitted by using the dynamic arctangent hysteresis model. Consequently, the selection of driving conditions and core materials, which are assessed by comparing the experiment and simulation results, has an important role in achieving the optimal output performance of the RTD fluxgate.

抽象

创新点

滞留时间差型(RTD)磁通门的输出响应会随着不同的激励条件(激励信号的幅值和频率)和不同的磁芯材料而改变。为了优化RTD型磁通门和简化其设计过程, 本文提出了一种基于选择和确定对其输出响应有主导作用的有效因子的分析模型, 进而详细地讨论能够反映磁化曲线变化的动态磁导率参数(Pi)。在不同的激励条件下, 用动态反正切磁滞模型拟合Pi的线性变化函数, 并通过理论计算与仿真结合的方式得到最优设计参数。最后, 实验和仿真结果的对比表明该方法可以指导激励条件和磁芯材料的选择, 这对于RTD型磁通门输出响应的优化具有很重要的意义。

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Correspondence to Yanzhang Wang.

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Wang, Y., Wu, S., Lu, H. et al. Output performance optimization for RTD fluxgate sensor based on dynamic permeability. Sci. China Inf. Sci. 59, 112213 (2016). https://doi.org/10.1007/s11432-015-5465-9

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Keywords

  • RTD fluxgate
  • hysteresis loop
  • analysis of dynamic permeability
  • simulation
  • output response

关键词

  • RTD型磁通门
  • 磁滞回线
  • 动态磁导率
  • 仿真
  • 输出响应