一种供氧面罩防窒息活门测试系统的设计研究

针对供氧面罩防窒息活门性能检测，及其对人体呼吸模式影响的研究需求，研制了多参数采集、分析及统计一体的供氧面罩防窒息活门测试系统。该系统基于CompactDAQ平台，以面罩压、通气流量信号采集为基础，采用LabVIEW软件开发，可对开启压力、吸气阻力、通气流量峰值、潮气量、呼吸频率等参数进行分析统计。通过实验验证，该系统具备了对防窒息活门主要性能检测，及人体呼吸参数分析统计的能力。该系统便于携带，扩展性强，人机界面友好，运行可靠，较好的满足了防窒息活门检测、研究的需求，同时该系统的设计方法为供氧面罩其他性能参数的检测的提供了一种思路

Design of an Anti-asphyxiation Valve on Mask Testing System

According to the requirement of the performance test of the anti-suffocation valve on mask and the research of its effect on the breathing mode of human body, a multi parameter collection, analysis and statistics integrated test system was developed. The system is based on CompactDAQ platform, collecting of mask pressure and ventilation flow signals, and developed by LabVIEW software. The parameters such as opening pressure, suction resistance, ventilation flow peak value, tidal volume and respiratory frequency can be analyzed and counted. According to the experiment, the system has the ability to test the main performance of the anti-suffocation valve and analyze the respiratory parameters of human body. The system is portable, extensible, friendly human-machine interface and reliable operation possessed. It can meet the needs of test and research of anti-suffocation valve. At the same time, the design method of the system provides a way for the test of other performance parameters on oxygen mask.