材料科学与工程学报2011，Vol.29Issue(3)：375-380,6.
传感器加热单元热力耦合分析
Coupled Thermodynamic Analysis of Heating Unit of Sensor
摘要
Abstract
The heating unit, composed of an alumina board and platinum resistance slice (PRS) coated through magnetron sputtering approach, is an important part of catalytic combustion sensor. As electric current flows, the heat generated by PRS makes the temperature of board increase. The non-uniformly distributed temperature on the board can lead to thermal stress and the deformation of PRS and board, which affects the efficiency of sensor. In order to investigate the possible influence of temperature distribution, finite element method (FEM) was applied to the coupled thermodynamic analysis on heating unit of the sensor in terms of temperature and stress-strain fields. Results show that tensile stress exists on the surface of sensor. Within the range of operating temperature, tensile stress is lower than the strength limit of the material so that the senor can work normally.关键词
热力耦合分析/有限元模拟/ANSYS/传感器Key words
coupled thermodynamic analysis/ FEM simulation/ ANSYS/ sensor分类
信息技术与安全科学引用本文复制引用
刘英伟,乔英杰..传感器加热单元热力耦合分析[J].材料科学与工程学报,2011,29(3):375-380,6.基金项目
国家自然科学基金(全量程瓦斯监测系统集成设计及机理研究)资助项目(60971020/F010907) （全量程瓦斯监测系统集成设计及机理研究）
