心肺时相撞击自动控制系统

目的 研制动物心肺时相撞击自动控制系统，以进行动物心或肺不同活动时相的撞击伤研究。方法 控制系统由信号采集装置、触发器、电磁铁和微计算机组成，与摆锤式撞击台配套使用。由计算机键盘输入摆锤下落时间、K值及撞击指令，撞击程序运行。以呼吸波峰或心电R波峰作为撞击触发的参照点，计算出触发延时量，确定触发点，实施触发，完成预定的心或肺活动时相撞击。结果 能准确地进行动物心肺不同活动时相的撞击。结论 本控制系统可用于各种动物撞击装置的心肺时相撞击控制。

Automatic Control System for Phase Impact of Heart and Lung

Objective To present an automatic phase impact control system for hearts and lungs of animals,so as to study the impacting injury of the hearts and lungs of animals at different phases. Method The automatic control system consists of signal acquisition device, trigger, electromagnetism actuator and personal computer. The pendulum dropping time, value K and impacting command are input into PC through keyboard and according to the peak of breath wave or the peak of R wave of electrocardiogram,the program calculates the trigger delay time, determines the trigger point and implements the predeterminate phase impact. Result Precise impact at different phases of the hearts and lungs of animals were realized. Conclusion The system can be used as the phase impact control system for different kinds of impact desks.