討論了氣流方向?qū)σ环N機(jī)載總溫傳感器動(dòng)態(tài)特性的影響, 發(fā)現(xiàn)氣流偏角對(duì)傳感器的動(dòng)態(tài)特性有很大影響, 首次提出了總溫傳感器動(dòng)態(tài)特性的方向敏感性概念。本文分析了其原因, 并指出在設(shè)計(jì)、生產(chǎn)和使用過程中必須控制氣流偏角的大小, 否則將破壞傳
感器的動(dòng)態(tài)性能。這一結(jié)論也適用于與結(jié)構(gòu)類型相似的其它總溫傳感器。
關(guān)鍵詞: 溫度; 傳感器; 動(dòng)態(tài)特性; 時(shí)間常數(shù); 方向敏感性
Abstract: The effect of the gas f low direct ion on the dynam ic character ist ic of a k ind
of the airbo rne to tal temperatu re sen so r is discu ssed. D iscover ing that the deviat ion
angle of the gas f low has an great effect on the dynm ic character ist ic of the sen so r, the
concep t of direct ional sen sit ivity of the to tal temperatu re sen so r is advanced fo r the f irst
t im e. The reason of that is analyzed in th is paper. A nd it is po in ted ou t that, du r ing the
p rocasses of design, m anufact rue and u sing, con t ro lling the direct ional diviat ion is
necessary, if no t, the dynam ic character ist ic of the sen so r w ill be aggravated. Th is
conclu sion can be adap ted to o ther to tal temperatu re sen so rs w ith sim ilar con st ructu re.
Key words: temperatu re; sen so r; dynam ic character ist ic; t im e con stan t; direct ional
sen sit ivity