Temperature and velocity measurement on unsteady high-Reynolds number flow by using laser-induced thermal acoustics

作者开发了一种基于激光诱导热声学（LITA）的短时间非定常温度历史测量技术，具有微二阶时间分辨率。研制了一种用激波管揭示刨床激波温度变化的实验装置。该测量技术已经成功地揭示了由冲击波引起的温度历史，准确度达到10%（最高）。利用所开发的测量技术来揭示飞行器在超声速下的流场温度分布，这需要具有微二阶响应时间的温度计来测量。

The author has developed a laser-applied measurement technique based on laser-induced thermal acoustics (LITA) for short-time and unsteady temperature history with micro-second-order time resolution. The author developed an experimental apparatus to reveal temperature history caused by planer shock with shock tube. The measurement technique has successfully revealed temperature history caused by shock waves, with accuracy of 10% (at maximum). The developed measurement technique would be utilized to reveal, the temperature profile of flow field around aerospace craft at supersonic speeds, which the thermometer with micro-second-order response time is required to measure.