Analysis of measurement accuracy of air flow sensor influenced by moisture

被引：0
|
作者：
Xu, Chunlin [1 ]
Zhou, Quan [1 ]
Guo, Xing [1 ]
Zhan, Shannan [1 ]
Xiong, Bo [1 ]
Jiang, Hao [1 ]
Liu, Sheng [2 ]
机构：
[1] Huazhong Univ Sci & Technol, Inst Microsyst, Sch Mech & Engn, Wuhan, Peoples R China
[2] Wuhan Univ WHU, Sch Power & Mech Engn, Cross Disciplinary Inst Engn Sci, Wuhan, Peoples R China
来源：
2015 16TH INTERNATIONAL CONFERENCE ON ELECTRONIC PACKAGING TECHNOLOGY | 2015年
关键词：
hot film air flow sensor; moisture; ANSYS Fluent; flow rate;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The paper presents an analysis of moisture on the output of hot film air flow sensor. The model used for analyzing the influence of moisture on the sensor is set up with the whole sensor structure into consideration. CFD and gas-solid coupled heat transfer model is used for simulation. The thermal physical property of air with moisture is discussed in the paper. The temperature distribution of hot film air flow sensor with respect to the air flow rate and relative humidity of air is computed for analysis. By comparing the results with the dry air situation, the conclusion is made. The moisture in the air will lower the temperature of the upstream and downstream resistance and increases the temperature difference between the two resistances and the power consumption of the sensor.
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页数：5
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