环空间阵列扭矩传感器设计与原理分析

针对恶劣环境下机械转轴扭矩动态测量问题,利用交流电磁感应原理,采用环型空间阵列封装磁性钢球和专门的磁电式检测器,构造一种新型的非接触扭矩测量传感器.本文设计了传感器的结构并对测量原理进行了分析,建立了其动态扭矩测量的数学模型.通过环空间阵列作切割磁力线运动,引起磁通量的周期性变化,得到感应信号的周期性变化,从而实现了位...

Design and principle analysis of the ring-space array torque sensor

Aiming at the problems of dynamic measurement of mechanical spindle torque in extreme environments,the exchange of electromagnetic induction principle,and a special ring-space array to encapsulate some magnetic balls and a magnetic-electric detector are used to compose a new type of non-contact torque sensor.The structure is designed and the measuring principle of the sensor is analyzed,the mathematical model of dynamic measurement for the sensor is established.By the movement of ring-space array cutting through the magnetic line of force,the magnetic flux is changed periodically.So the inducted signal changes periodically.Conversion from displacement signal to electrical signal is achieved,and the mathematic relationship between the phase difference and the torque of the shaft is established.The simulation experiment verified the correctness and feasibility of the methods.It can realize the dynamic torque measurement of the mechanical shaft.