一种基于铁基非晶态合金压磁效应的膜盒式压力传感器

An Aneroid Pressure Sensor Based on the Magnetoelasticity Effect of Fe-Base Amorphous Alloy Ribbon

开发了一种基于Fe基非晶态合金薄带压磁效应的膜盒式压力传感器。首先,论述了这种传感器的结构、工作原理、输出特性以及主要参数的选择。然后通过试验,分析了传感器的静态特性以及磁场强度对输出的影响。试验结果表明,本文设计的传感器最大线性误差为1.29%F.S,最大不重复误差为1.56%F.S,最大灵敏度为0.3675mV/kPa。另外,这种传感器结构简单,温度稳定性好,工作可靠,成本低廉,测压范围宽。

A new kind of aneroid pressure sensor based on the magnetoelasticity effect of Fe-base amorphous alloy ribbon was developed.At first its operation principle,structure,output characteristic and the choice of some major parameter were discussed.Secondly through the pressure experiment,the sensor ＇ s static characteristic of as well as the influence of magnetic field strength on the output was analyzed.The experimental result shows the sensor ＇ s the maximum linearity error is 1.29% F.S,the maximum repetitive error 1.56%F.S,and the maximum sensitivity is 0.3675mv / kPa.In addition the sensor has some characteristic such as,good temperature stability,reliability,simpler structure,low costs and extensive measuring range.