民用飞机大气传感器低速验证试验研究

飞机的大气传感器是获得飞机外部大气参数的重要的测量仪器,如果大气传感器自身精度不够,或者由于布置不合理引起的误差,就会引起飞行危险。为了验证气动设计的布局方案,选出传感器位置比较优化的方案,得到机头静压值随迎角变化不变的区域,同时总结出民机大气数据传感器布局设计验证的风洞试验方法。通过低速测压风洞试验和缩比传感器（风标和七孔探针）,测量得到大气传感器不同布局位置的气动特性。结果表明：大气传感器的布局位置对测量结果影响相当重要;试验结果与计算结果符合良好,满足气动设计要求。

Study on Low-speed Verification Test of Atmospheric Sensors of Civil Aircraft

The atmospheric sensor is an important measuring instrument to get external atmospheric parameters of the plane.If the precision of atmospheric sensor is not enough or it is arranged unreasonably,it would cause risk during the flight.The purpose of this article is mainly to verify the scheme of atmospheric sensor＇s layout,to get the optimized schemes and the belt where the static pressure of the nose is constant in spite of the change of the angle of attack.The way of verifying the layout of atmospheric sensors is conducted.The results of aerodynamic characteristics of atmospheric sensors are gained by the low speed wind tunnel test and scaled sensors（wind vane and seven-hole probe）.Results show that the sensor＇s layout is important to the measurement results of the atmospheric sensors.The experimental results are agreed well with the calculated ones,and satisfied with the requirements of the aerodynamic design.