求翻译：摘要：利用霍尔效应测量磁场分布。采用霍尔元件作为实验基础材料，研究螺线管轴线各点磁场分布情况和不同励磁电流下螺线管中点磁场的变化情况，同时，利用磁阻效应对亥姆霍兹线圈这一弱磁场进行测定，然后利用异性磁阻传感器测量地磁场。是什么意思？

Abstract: Hall-effect measurement of the magnetic field distribution. Hall element as an experimental base material, research solenoid axis magnetic field distribution of the solenoid the midpoint magnetic field changes in circumstances and different excitation current, using the magnetoresistance e

Summary: Use Hall effect measured magnetic field distribution. A Hall element as a lab based research material, and the solenoid axis magnetic field distribution and different excitation current solenoid magnetic field changes in the mid and at the same time, using the magnetic resistance effect in

Abstract: Surveys the magnetic field distribution using the Hall effect.Uses the Hall part to take the experimental foundation material, under the research solenoid spool thread each magnetic field distribution situation and the different exciting current the solenoid center point magnetic field cha

Summary: using Hall effect measurement of magnetic field distribution. Using Hall elements as a basis for experimental materials, study of solenoid axial magnetic field distribution and different excitation electric shed mid-point solenoid magnetic field changes, at the same time, use magnetic resis

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