高超声速热线/热膜风速仪研究综述及分析

摘要

In terms of the requirements for hot - wire/film anemometry in hypersonic airflow measurement, the recent research and development of hot - wire/film anemometry are summarized. The key problems and technical features are discussed for hypersonic hot-wire/film anemometry based on probe manufacture, control circuit design and probe calibration. The effects on thermal testing system are analyzed form hot-wire/film material, geometry and control-circuit mode, and several calibration methods are compared. Finally, some approaches have been proposed as reference to the research of hypersonic anemometry in China.%针对高超声速流场测量对热线/热膜风速仪的需求,对近年来国内外热线/热膜风速仪研制现状进行了归纳.重点从探头制备、控制电路设计及探头校准三个方面,阐述了热线/热膜测试系统应用于高超声速流场测量必须解决的关键问题及各种方案的特点；分析了探头材料、构型及控制电路模式对高超声速流场中热线/热膜测试系统性能的影响,并对热线/热膜探头校准的几种方法进行了对比,总结出可供发展我国自主知识产权高超声速热线/热膜技术的意见.