一种非侵入式声波测温系统

A Noninvasive Acoustic Wave Temperature Measurement System

针对现有各种测温技术的缺点,开发了一种利用声波测量原理的非侵入式声波测温系统,生产了系统样机并进行模拟实验。针对该系统研发了一套基于Windows环境的图形界面交互平台,可以实时对待测装置的温度进行监控并以图形的形式显示在监控屏上;系统利用互相关函数法测量声波在炉堂内的飞行时间,在大背景噪声下互相关峰值明显,测量精度可达10μs。通过对系统的总体设计、关键技术分析和模拟实验,证明了其良好的测温性能和广阔的应用前景。

As the shortcomings in the existing methods of temperature measurement, a noninvasive acoustic wave temperature measurement system is developed by using acoustic measuring principles. The prototype is produced and experimental verifications are carried out. A graphical interactive platform of the system is exploi- ted based on Windows environment. It can display the monitored temperature of the being measured device on the screen in a graphical form real time. The cross-correlation function method is used to measure the flight time of acoustic in the furnace, which has a significant cross-correlation peak even under bad noises. By descri- bing the systems＇ overall design, key techniques and simulation experiments, it is proved that the system has a good performance and a bright prospect of practical applications.