摘要
本文用ＩＦＡ３００热膜（热线）风速仪和ＡＣ—１气体探针校准器，试验研究了Ｘ形热膜探针的方向敏感性，对Ｘ形热膜探针进行了速度标定和定速度偏航标定，比较了其偏航系数使用前后其特性的变化。
This paper investigates experimentally the sensitivity of an X sensor hot film probe to yaw angle variations.The velocity calibration and yaw angle calibration at the constant velocity for the X sensor hot film probe are perfomed with IFA300 hot wire (hot film) anemometer on the AC-1 gas hot wire (hor film)calibration apparatus,and the perfomance of the same X sensor hot film before and after it is used for a period is compared.And then,full velocity_yaw angles calibration is carried out to meet the needs of the particular measurement example,and the relation between velocity and yaw coefficient is given.
基金
山东省优秀中青年科学家奖励基金
