差动变压器式互感传感器测量性能分析

Analysis on Measuring Performance of Mutual Inductive Transducer

差动变压器式互感传感器具有既能测定物体形变大小,又能测定形变方向的良好特性,在许多场合下得到了重要应用。但由于传感器内部零点残余电压以及温度误差等因素的存在,会使传感器的测量性能受到重要影响。对此,首先分析推导了差动变压器式互感传感器的工作过程;然后通过实验对传感器的测量性能进行了验证,其中主要对影响测量性能的零点残余电压及温度变化因素进行了讨论,并给出了一些定量结果。通过该种方式的处理,可以为充分把握传感器的测量性能以及在实际中更好地应用该种传感器奠定基础。

Mutual inductive transducer can be used to measure the deformation of the object and the direction of deformation as well.This makes it widely used in many fields.But at the same time,the errors arising from the internal residual voltage at the null position and temperature variation and so on will have an important effect on the measuring performance of the transducer.With this,detailed derivations on the working principle of the mutual inductive transducer are given,and experimental verifications on the performance of the transducer are investigated,in which the factors of the initial residual voltage and the temperature variation are mainly discussed and some quantitative results are provided.In this way,foundations are established for fully understanding the measuring performance of the transducer and better practical use.