Aiming at the current lack of effective temperature testing means for long-time ultra-high temperature gas environment above 1200 ℃ in China,based on the principle of ultrasonic pulse penetration temperature measurement,and by designing an uniformly distributed array of planar eight-element circular temperature sensors,an efficient temperature field detection system is successfully developed. According to the empirical function between the wave velocity V and the gas temperature T,the performance data of each sensor are obtained through high temperature experiments. The experimental results show that the system achieves a measurement precision of 97.98％,a repeatability of more than 95. 52％,and a response time of milliseconds level at a high temperature of 1200℃,which meets the design requirements.
关键词
超高温气体/穿透测温/均匀圆环阵/分段包络互相关
Key words
ultra-high temperature gases/penetration temperature measurement/uniform circular array/segmental envelope cross-correlation
维普
万方数据