Dynamic characteristics analysis on blackbody cavity high temperature sensor based on finite element method

WU Fei; DONG Jie; TIAN Hai-xia; CAI Lu-lu

doi:10.13873/J.1000-9787(2015)08-0035-04

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Dynamic characteristics analysis on blackbody cavity high temperature sensor based on finite element method

更新时间：2025-09-11

- Dynamic characteristics analysis on blackbody cavity high temperature sensor based on finite element method
- Vol. 34, Issue 8, Pages: 35-38(2015)
- 作者机构：
  
  1. 燕山大学电气工程学院
  2. 燕山大学测试计量技术及仪器河北省重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2015)08-0035-04
  CLC： TP212.9
- Published：2015
- 稿件说明：
移动端阅览
[1]吴飞,董杰,田海霞,蔡璐璐.基于有限元法的黑体腔高温传感器动态特性分析[J].传感器与微系统,2015,34(08):35-38.

WU Fei, DONG Jie, TIAN Hai-xia, et al. Dynamic characteristics analysis on blackbody cavity high temperature sensor based on finite element method[J]. 2015, 34(8): 35-38.
[1]吴飞,董杰,田海霞,蔡璐璐.基于有限元法的黑体腔高温传感器动态特性分析[J].传感器与微系统,2015,34(08):35-38. DOI： 10.13873/J.1000-9787(2015)08-0035-04.

WU Fei, DONG Jie, TIAN Hai-xia, et al. Dynamic characteristics analysis on blackbody cavity high temperature sensor based on finite element method[J]. 2015, 34(8): 35-38. DOI： 10.13873/J.1000-9787(2015)08-0035-04.

摘要

基于有限元热分析法

建立了黑体腔三维有限元模型

分析了黑体腔结构参数、热物性参数、黑体腔初始预热温度对黑体腔测温过程中动态特性的影响。研究结果表明:黑体腔结构参数的改变直接影响黑体腔动态测温误差、动态响应时间、腔体发射率

进而影响黑体腔性能。黑体腔动态测温误差随着比热或密度的增大而增大。黑体腔初始预热温度对黑体腔动态测温影响较大

初始预热温度每增加100℃

最大测温误差减小50℃左右

动态响应时间减少5 s左右。

Abstract

Based on finite element analysis method

three dimensional（ 3D） finite element model for blackbody cavity is established

analyze effect of structural parameters of blackbody cavity

thermal physical property parameters

initial preheating temperature on dynamic characteristics of blackbody cavity temperature measuring process. The result shows that change of blackbody cavity structure parameters directly influence on cavity dynamic temperature measurement error

dynamic response time

cavity emissivity

and then affects performance of blackbody cavity. The cavity dynamic measurement error increases with the increasing of heat capacity or density.Influence of blackbody cavity initial preheating temperature on dynamic temperature measuring of blackbody cavity is great

when the preheating temperature increases 100 ℃

the maximum dynamic measurement error reduces50 ℃

dynamic response time reduces about 5 s.

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references

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