基于STM32除颤脉冲能量测量系统的研究  

Development of pulse energy testing system based on STM32

作　　者：张亚冬[1] 李岩峰[2] 贾建革[2] 武文君[2] 邵海明[3] 

机构地区：[1]第四军医大学生物医学工程学院,西安710032 [2]总后勤部卫生部药品仪器检验所,北京100071 [3]中国计量科学研究院,北京100013

出　　处：《医疗卫生装备》2015年第1期8-10,共3页Chinese Medical Equipment Journal

基　　金：国家科技支撑计划课题(2011BAI02B04);军事医学计量科研专项课题(2011-JL2-062)

摘　　要：目的:研究基于STM32的除颤能量测试系统,该系统能精确测量除颤脉冲能量且不受负载电阻精度影响。方法:电压电流检测电路和前端信号调理电路将除颤脉冲电压和电流分别转换为不超过±2.5 V的电压信号,经模数转换后传送至微处理器STM32中计算处理并通过液晶显示结果。结果:该系统能量测试结果与常规除颤器分析仪基本一致。结论:研制的除颤脉冲能量测试系统能准确测量除颤能量且不受负载电阻精度和分布电感、电容的影响,为除颤能量计量溯源提供了更好的平台。Objective To develop a STM32-based energy testing system to measure pulse energy accurately and independently from load resistance. Methods Pulse vohage and current of defibrillation were turned to voltage signal within the scope of ±2.5 V through voltage and current detecting circuit. Then analogy voltage signals were sampled and converted to digital ones. Computation and analysis were completed by microprocessor STM32 and displayed by LCD. Results The test result from this system was consistent with the result form defibrillation analyzer. Conclusion The energy testing system can measure pulse energy accurately and the result is independent of load resistant, which presents a technique for defibrillation energy meterage.

关 键 词：除颤 脉冲能量 能量测试 STM32 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] TH789[自动化与计算机技术—控制科学与工程]