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.
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.
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
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