CBAS温度场发生源能消除DTA基线漂移的原理

The Principle of Elimimating DTA Datum Drift by CBAS Temperature Field Source

本文以ＣＢＡＳ温度场发生源￣［１］在４０４型差热分析（ＤＴＡ）仪中的应用为例，简要地讨论了ＣＢＡＳ、温度场形成机理，及对应于场的函数模型、ＤＴＡ定位准则的建立。提供了在ＤＴＡ试验中消除基线漂移的新依据。

Abstract Having used Cylindrical body axis Synmetry (CBAS ) temperature fieldSoure[1] in type 404 differential thermal analysis apparatus as an example the mechanism offorming CBAS temperature field as well as the establishment of its field function model andDTA position fixing Criterion Was discussed briefly in the paper. Hence a new basis of elimi-nating the phenomenon of datum drift in DTA test had been provided.