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以激光扫掠法为基础，结合计数型信号处理技术和微机高速数据采集方法，构成了人工心瓣瞬时关闭速率的激光实时诊断系统。介绍了激光扫掠法的基本原理之后，讨论了各主要光学部件的作用及准直透镜和圆柱光栅的位置参数对测量结果的影响，分析了实时信号处理系统的构成及工作原理，并给出了单叶碟型机械心瓣关闭速率的实测结果。
Based on the laser scanning method, combined with the counting signal processing technology and the computer high-speed data acquisition method, a laser real-time diagnosis system of artificial heart valve instantaneous closing rate is constructed. After introducing the basic principle of the laser scanning method, the effects of the main optical components and the position parameters of the collimator lens and the cylindrical grating on the measurement results are discussed. The structure and working principle of the real-time signal processing system are analyzed and the The single leaf disk mechanical heart valve closing rate of the measured results.