A^2PI型磁场传感器的非线性数学模型

Non-Linear Model of A^2PI Magnetic Filed Sensor

本文在介绍A2PI型磁场传感器原理的基础上，从剖析其电磁转换过程入手，利用等效电路对其暂态过程进行分析，建立该传感器的非线性数学模型．通过详细深入的数学分析和推导，得到非晶态合金在高频下的非线性磁导率的解算方法，从而解决数学模型的非线性问题．

In order to get better pcrformanccs and higher design efficiency, the output of an A2PI magnetic field sensor must be predictcd and analyzed, so it is necessary to model the sensor. The transient process of the sensor probe was studied thoroughly. A nonlinear model based on equivalent electrical circuit techniques was developed. The non-linearity of the model mainly comes from the amorphous alloy, it was solved with parameter identification and indepth mathematlcal analysis. The simulation results of the equations show good agreement with the experimcntal results. The investigation of this analysis is valuable for optimization of this kind of magnetic sensors.