【摘要】 本文介绍了喉动态观测分析仪中单片机主控系统的研制。该控制系统的主件是AT89C52微处理器,可提供声音信号预处理电路所需的控制信号,提供平光和闪光切换触发信号,提取声音的基频信号,输出闪光触发脉冲,从而实现声带振动的实时静相及动相观测。实验结果表明该系统实现了喉动态实时观察的控制,达到了系统的设计要求。更多还原

【Abstract】 This article introduces the main control system of larynx dynamic observing and analyzing instrument. The control system is based on AT89C52 microprocessor. It can supply the control signals for pretreatment circuit of voice signals, and triggering signals to switch continuous light and flash light, also can produce the triggering impulses of flash light based on sonic base frequency, so real-time static and dynamic observing of vocal cords can be achieved. The results of experiments indicate that this system can accomplish the control of largnx dynamic realtime observing and meet the requirement of design.更多还原