摘要
用试验和计算的方法来求温度探头的动态特性，即求出τ０值。然后，用相似理论推导出了时间常数τ的通用公式，以解决在任何高度、任何飞行状态的动态气流温度测量问题。
Dynamic airflow temperature measurement is required almost in any aeronautical area. The nature of the problem can be analysed: how to accurately determine probe′s time constant τ 0 in reference condition and trasfer it to τ for particular condition of any measured airflow. An experimental and calculative method for determining the dynamic characteristic of the thermal probe (τ 0) is presented in this paper. The experimental method is simple and convenient and the calculative method is reliable. Based on the simulation theory, a universal formula of the time constant τ is developed. Then the problem of dynamic air flow temperature measurement in any flight state at any altitude can be solved.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1998年第5期560-563,共4页
Acta Aeronautica et Astronautica Sinica
