基于单片测量的新型B-H复合传感结构设计

Design of a new B-H complex sensing structure based on single sheet tester

基于标准单片测量法,针对H线圈法和B线圈法等一系列传统磁特性测量方法的不足进行改进,提出一种新型B-H复合传感结构的设计方法;该设计方法基于一种自主设计的旋钮控制的夹紧装置,通过霍尔元件代替H线圈法测量磁场强度H,通过切向线圈传感器代替B线圈法或探测针法测量磁通密度B,同时装置于夹紧装置的温度传感器可用来测量样片温升变化、压力传感器可用来探究样片磁致伸缩现象对磁特性的影响。通过仿真软件搭建测量模型和多物理场耦合模型,验证新型复合传感结构设计用来进行磁特性测量的可行性。通过一系列数据验证说明该复合装置具有可行性与实用性,且结构简易、易于拆解、可测量多种材料且测量精度较高。

Based on the standard single sheet tester,a new B-H composite sensing structure is proposed to improve a series of traditional magnetic property measurement methods,such as H-coil method and B-coil method,which is based on a self-designed knob-controlled clamping device.The magnetic field strength H is measured using Hall elements instead of the H coil method,and the magnetic flux density B is measured using tangential coil sensors instead of the B coil method or probe method.At the same time,the temperature sensor installed in the clamping device can be used to measure the temperature rise change of the sample piece.and a pressure sensor is used to investigate the effect of magnetostriction on the magnetic properties of the sample.The simulation software is used to build a measurement model and a multi-physics field coupling model to verify the feasibility of the new composite sensing structure design for magnetic property measurement.A series of data validation shows that the composite device is feasible and practical,and the structure is simple,easy to disassemble,and can measure a variety of materials with high measurement accuracy.