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一、引言随着现代流场诊断技术的发展,热线技术和激光多普勒测速技术日趋广泛地得到应用。而热线技术以其响应特性好、使用方便、相对造价较低和积累了丰富使用经验等特点,备受人们重视。尤其是微型计算机在热线技术上的应用,加速了该技术的数字化和智能化,使数据处理更为简便。三维流场的诊断技术在工程系统中的应用是相当普遍的。诸如:航空发动机旋转时
I. INTRODUCTION With the development of modern flow field diagnostic techniques, hot wire technology and laser Doppler velocimetry technology are increasingly widely used. The hotline technology with its good response characteristics, easy to use, relatively low cost and has accumulated rich experience in use, much attention. In particular, the application of microcomputers in hotline technology has accelerated the digitization and intelligence of the technology and made data processing easier. The application of three-dimensional flow field diagnostic technology in engineering systems is quite common. Such as: aeroengine rotation