【摘要】 针对恶劣环境下机械转轴扭矩动态测量的难题,利用交流电磁感应原理,采用环型空间阵列和专用的磁电式检测器,构建一种新型的非接触式扭矩传感器。分析了传感器的测量原理,建立了动态扭矩测量的数学模型,设计相应的测量系统。利用ANSYS有限元分析软件对传感器进行了建模和磁力分析,并进行了初步的扭矩测量实验,结果表明:系统的可测量最小扭转角≤±0.01°,可满足极端环境下机械转轴扭矩的动态测量,并具有较高的精度。更多还原

【Abstract】 Aimed at problems of dynamic measurement of mechanical spindle torque in extreme environments,the principle of electromagnetic induction is used.A special ring-space array and a magnetic-electric detector is used to compose a new type of non-contact torque sensor.By analyzing the measurement principle of the torque sensor,a mathematical model of dynamic torque measurement is established and a corresponding measurement system is designed.The modeling is set up and electromagnetic analysis of the sensor is carried out with ANSYS.The initial torque experiment showed that the minimum measurable torsion angle of the system is less than ±0.01°.It can meet dynamic measurement of mechanical spindle torque in extreme environments,and has high precision.更多还原