Magnetic field and output voltage analysis of 3D torque sensor

GUO Yan-ling; CHANG Zi-fan; NA Shao-dan

doi:10.13873/J.1000-9787(2017)02-0018-03

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Magnetic field and output voltage analysis of 3D torque sensor

更新时间：2025-09-11

- Magnetic field and output voltage analysis of 3D torque sensor
- Vol. 36, Issue 2, Pages: 18-20+24(2017)
- 作者机构：
  
  东北林业大学机电工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2017)02-0018-03
  CLC： TP212
- Published：2017
- 稿件说明：
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[1]郭艳玲,常子凡,那少聃.立式扭矩传感器磁场与输出电压分析[J].传感器与微系统,2017,36(02):18-20+24.

GUO Yan-ling, CHANG Zi-fan, NA Shao-dan. Magnetic field and output voltage analysis of 3D torque sensor[J]. 2017, 36(2): 18-20+24.
[1]郭艳玲,常子凡,那少聃.立式扭矩传感器磁场与输出电压分析[J].传感器与微系统,2017,36(02):18-20+24. DOI： 10.13873/J.1000-9787(2017)02-0018-03.

GUO Yan-ling, CHANG Zi-fan, NA Shao-dan. Magnetic field and output voltage analysis of 3D torque sensor[J]. 2017, 36(2): 18-20+24. DOI： 10.13873/J.1000-9787(2017)02-0018-03.

摘要

扭矩传感器是汽车电动助力转向（EPS）系统中的核心部件

基于电磁感应原理提出了一种新型扭矩传感器。介绍了传感器的结构和工作原理

运用电磁场理论推导了立式扭矩传感器的磁场计算公式和输出电压数学模型。采用Ansoft Maxwell对传感器的电磁感应系统进行了建模仿真

仿真结果表明:气隙磁场强度沿圆周方向呈类似方波分布

输出电压信号类似于正弦曲线

磁场分布和输出电压的仿真结果与理论计算吻合。

Abstract

Torque sensor is a core component of automotive electric power steering（ EPS） system

a new kind of torque sensor based on electromagnetic induction principle is proposed. Structure and working principle of the sensor are introduced. Calculation formula of magnetic field and mathematic model for output voltage are deduced with the theory of electromagnetic field. Electromagnetic induction system of sensor is modeled and simulated by using Ansoft Maxwell. The simulation result reveal that the magnetic field of circumferential air-gap similar to square wave and the output voltage signal is similar to sine curve

the simulation result of magnetic field distribution and the output voltage are consistent with the theoretical calculation.

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references

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