闭磁路磁电式转速转矩传感器的研究

摘要

在磁电式转速转矩传感器的设计中,齿的个数是一个重要的参数而闭磁路式传感器的磁路计算比较复杂,没有很好的确定齿数的公式.针对上述问题,提出了一种基于有限元分析软件Ansoft Maxwell确定闭磁路磁电式传感器齿数的方法,通过使用Ansoft Maxwell建立一种量程为20 N·m任意齿数的闭磁路磁电式传感器的三维模型并进行仿真,根据仿真结果计算出其合适的齿数并进一步以得出的齿数建立新模型进行仿真试验确认了该方法的可行性.实验表明这种齿数确定方法具有较强的实用性.%In the design of magnetic-electric speed torque sensor, the number of teeth is an important parameter, but the closed magnetic circuit magnetic sensor is too complicated to use a good formula to determine the number of teeth. A method based on finite element analysis software Ansoft Maxwell was proposed to determine the number of teeth. A range of 20 N· m at random number of teeth of the closed magnetic circuit magnetic sensor and three-dimensional model simulation was established by using Ansoft Maxwell. The appropriate number of teeth was calculated based on the simulation results. The calculated number was used to create a new simulation model for the purpose of confirming the feasibility of this method. Experiments show the practicability of the teeth number determination.