温度对铁精粉品位检测传感器的影响研究

Research on effect of temperature on sensor of iron fine powder grade detecting

给出了采用自感式电感传感器进行铁精粉品位测量的测试原理,分析了电感传感器的感应机理。利用ANSYS 12.0有限元仿真软件建立圆柱型铁精粉品位传感器的3D温度场仿真模型,对电感传感器内部温度场进行仿真分析,明确传感器在不同温度下自身热分布的相应变化;进行传感器温度贮存试验,分析环境温度对传感器输出的影响规律。通过温度场仿真和可靠性环境温度试验,探讨温度对铁精粉品位测量的影响,并采取相应措施减小或控制温度影响,为实现铁品位快速测试奠定必要基础。

Inductive sensor using principle of self-inductance is adopt to measure of iron fine powder grade,and analyze the mechanism of induction of the inductive sensor.ANSYS 12.0 finite element simulation software is utilized to set a 3D cylindrical iron powder grade sensor temperature field simulation model.Internal temperature field of inductive sensor are simulated and analyzed.Corresponding change of heat distribution of sensors in different temperature is determined.Furthermore,experiments of sensor temperature storage are carried out,and the law of impacting of the ambient temperature on output of sensor is analyzed.Through temperature field simulation and reliability environment temperature test,effect of temperature on iron powder grade measurement is discussed,and corresponding methods is considered to reduce or control temperature effect,to lay necessary foundation to achieve quick testing for iron grade.