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应用嵌入式大气数据传感系统,通过在飞行器表面特定区域布置测压孔测量表面来流压力,并可根据建立的气动模型,反推得到飞行器的飞行参数(攻角,侧滑角,马赫数,静压及动压等)。FADS系统通过测压孔感受飞行器表面的束流压力,因此,表面测压孔配置对于准确得到飞行参数至关重要。针对15°钝锥的钝前体外形,就FADS系统的测压孔配置对于攻角校准的影响进行了分析。结果表明,当测压孔的圆锥角在20°～70°范围内配置时,校准效果最理想。
The embedded atmospheric data sensing system is used to measure the flow pressure by arranging the pressure-measuring holes in a specific area of the aircraft surface. According to the established aerodynamic model, the flight parameters (angle of attack, side slip angle, Mach number , Static pressure and dynamic pressure, etc.). The FADS system senses the beam pressure on the surface of the aircraft through the pressure hole, so configuring the surface pressure hole is critical to accurately obtaining the flight parameters. According to the blunt precursor shape of 15 ° blunt cone, the influence of the pressure hole configuration of FADS system on the angle of attack calibration was analyzed. The results show that when the conical angle of the pressure hole is in the range of 20 ° ~ 70 °, the calibration effect is the best.