医疗卫生装备2023，Vol.44Issue(10)：33-37,5.DOI:10.19745/j.1003-8868.2023203
基于LED调光的频闪光刺激实验系统设计与实验验证
Design and experimental validation of strobe stimulation experimental system based on LED dimming
摘要
Abstract
Objective To design and experimentally validate a strobe stimulation experimental system based on LED dimming.Methods The experimental system consisted of a LED dimming system and a physiological data acquisition system.The LED dimming system was composed of a microprocessor system,a LED driver and a LED,which used pulse-width modulation(PWM)technology to modulate the duty cycle and frequency of the drive current to flexibly control the LED light intensity and flicker frequency;Biopac's 16-channel physiological signal recording and analysis system was used as the physiological data acquisition system.Strobe stimulation experiment was carried out to verify the performance of the system developed.Results The strobe stimulation experiment results showed the system developed could control the LED flicker frequency precisely and acquire the electrodermal data and ECG data of the subjects in real time,and the strobe stimulation resulted in changes of the electrodermal data and ECG data.Conclusion The system developed gains advantages in easy operation and can be used for exploring the photobiological effect of the strobe stimulation.[Chinese Medical Equipment Journal,2023,44(10):33-37]关键词
LED调光/频闪光刺激/光生物效应/皮肤电数据/心电图数据Key words
LED dimming/strobe stimulation/photobiological effect/electrodermal data/electrocardiogram data分类
医药卫生引用本文复制引用
王梦辉,王小斐,任杰,赵邑,宋健..基于LED调光的频闪光刺激实验系统设计与实验验证[J].医疗卫生装备,2023,44(10):33-37,5.基金项目
清华大学精准医学科研计划项目(10001020131) （10001020131）
清华-丰田联合研究基金 （）
