摘要
气敏特性测试室是气体传感器气敏性能研究的关键部件,针对测试室设计中经常出现的气体层流分布不均、测试数据波动大、气体选择性差等缺陷。采用软件模拟指导设计的方法,设计了一种气体传感器测试室,通过Fluent软件对其进行有限元建模和流体力学仿真。仿真和试验结果表明,该测试室结构简单、阻力小、气体层流稳定,能实现对气体传感器的高精度、高选择性测试。
Gas sensitivity test-room is the key component of the gas sensor sensitivity test. In order to solve the defects in the design of test-room, such as uneven distribution of gas laminar flow, large fluctuation of test data, poor gas selectivity and so on. We have designed a gas sensor test-room by adopting the method of software simulation. We have completed the finite element modeling and hydrodynamics simulation of the test-room by using Fluent software. Simulation and test results show that the test-room is sirnple in structure, small in resistance and stable in gas laminar flow. It can achieve high precision and high selectivity test for gas sensor.
作者
马宏伟
徐武德
杨旭辉
陈小通
祁昌禹
韩根亮
MA Hongwei;XU Wude;YANG Xuhui;CHEN Xiaotong;QI Changyu;HAN Genliang(Gansu Academy of Sciences Communication Technology Institute,Lanzhou,73000)
出处
《自动化与仪器仪表》
2018年第11期168-171,共4页
Automation & Instrumentation
基金
甘肃省重点研发计划项目(17YF1GA013)
甘肃省科学院应用研究与开发项目(2017JK-06)