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首页> 外文会议>AIAA aerospace sciences meeting;AIAA SciTech Forum >Flight Test of a Rugged Scramjet-Inlet Temperature and Velocity Sensor
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Flight Test of a Rugged Scramjet-Inlet Temperature and Velocity Sensor

机译：坚固的超燃冲压进气口温度和速度传感器的飞行测试

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摘要

The performance of a gas temperature and velocity sensor based on tuneable diode laser absorption spectroscopy (TDLAS) of oxygen in a scramjet engine inlet during a flight test is discussed. This is the first flight-tested TDLAS sensor designed specifically for measuring gas velocity of a scramjet inlet flow under flight conditions. The robustness and stability of the sensor design in dynamic load conditions were made evident by the quality of the data delivered after a very unstable and high-g launch scenario. The scramjet did not reach the targeted test altitude-velocity regime. However, analysis of the low-altitude data determined pressure and temperature in the inlet and showed that an adequate signal-to-noise ratio was obtained for high-speed velocity measurements at altitudes up to at least 30 km.
机译：讨论了基于可调谐二极管激光吸收光谱法（TDLAS）的超音速喷气发动机进气口中的氧气在飞行测试期间的气体温度和速度传感器的性能。这是首款经过飞行测试的TDLAS传感器，专门设计用于在飞行条件下测量超燃冲压发动机进气流的气体速度。传感器设计在动态负载条件下的鲁棒性和稳定性通过非常不稳定和高g发射场景后传递的数据质量得到了证明。超燃冲压发动机未达到目标测试高度-速度方案。但是，对低空数据的分析确定了进气口中的压力和温度，并表明在至少30 km的高度上进行高速速度测量时，可以获得足够的信噪比。

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