Development of low-oxygen mixed gas generator for pilot hypoxia testing
10.19745/j.1003-8868.2024126
- VernacularTitle:飞行员缺氧耐力检查用低氧混合气体制备装置的研制
- Author:
Lin-Xia LI
1
;
Jia-Ling XU
;
Guo-Yun MAO
;
Yao-Xuan JI
;
Jin MA
;
Yun-Ying WANG
Author Information
1. 空军军医大学航空航天医学系航空航天生理学教研室,西安 710032
- Keywords:
hypoxia tolerance testing;
low-oxygen gas preparation;
acclimatization training;
flight safety
- From:
Chinese Medical Equipment Journal
2024;45(7):24-28
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop a low-oxygen mixed gas generator to make up for the deficiencies of low-pressure chambers and load-resistant hypoxia trainers during pilot hypoxia tolerance testing.Methods The device prepared the low-oxygen gas with the principle of gas separation,which was composed of a Sunsource OLF1100D-220AF air compressor,a SMC IDG75SAM4-03 filter,a buffer tank,an AIR Products PA3010 integrated assembly,a control box,sensors and regulators.The sensors included the pressure sensor,flow sensor,concentration sensor and dew point temperature sensor,and the control box consisted of a main control board,a power supply module,a transmission module,a communication module,a display and a housing.The embedded control software of the device was developed with KEIL 5 and C++.Results The device developed prepared the low-oxygen gas with the volume fraction being 4％to 18％and the maximum error of volume fraction being 0.05％,and the main components of the prepared gas met the technical requirements of medical oxygen as stipulated in GB 8982-2009 Oxygen supplies for medicine and aircraft breathing.Conclusion The low-oxygen gas prepared by the device has its volume fraction precisely controlled and can be used for hypoxia tolerance testing and acclimation training for pilots.[Chinese Medical Equipment Journal,2024,45(7):24-28]
