新型燃油测量技术解析  

Analysis of New Fuel Gauging Technology

作　　者：丛楠 CONG Nan(China Navy Equipment Department,Chengdu 610000,China)

机构地区：[1]海军装备部,四川成都610000

出　　处：《仪表技术》2020年第5期8-12,31,共6页Instrumentation Technology

摘　　要：根据现代飞机通用要求和相关军用标准的规定,提出了一套实现现代飞机燃油测量系统功能性能的具体方案。该方案的油量测量功能主要包括全机总油量测量、各油箱油量测量以及与航空电子系统的信息交换,满足了飞机燃油测量系统的各项功能需求。为达到现代飞机对燃油测量系统的高性能需求,分析了目前燃油测量系统精度较低的原因,研究了如何改进目前的数字测量原理,以及如何通过测量技术中的密度补偿、介电常数补偿和飞机姿态补偿等方法提高燃油测量系统精度。对于燃油测量的多余度需求,采用全机油量测量和耗量测量相结合的方式,不但实现了飞机燃油测量的双余度模式,还避免了普通双余系统由于原理相似或相同而导致的共性问题。为增强安全性,系统还增加了信号告警部分,对特定油位进行告警,使燃油测量系统达到了3余度。此外,该方案还通过对燃油测量关键技术和"五性"等方面的研究,提出了如何解决燃油测量系统工程化问题的具体措施。According to the general requirements of modern aircraft and relevant military standards,this paper puts forward a set of specific schemes to realize the functional performance of fuel measurement system of the modern aircraft.The oil quantity measurement function of this scheme mainly includes the total oil quantity measurement of the whole air-craft,the oil quantity measurement of each tank and the information exchange with the avionics system,which meets the functional requirements of the aircraft fuel measurement system.To achieve the demand for high performance of the fuel measuring system of the modern aircraft,this paper analyzes the cause of the lower accuracy of the fuel measurement sys-tem,and studies how to improve the current digital measuring principle,and how to improve fuel measurement accuracy through the density compensation,dielectric constant compensation and aircraft attitude compensation methods in the measurement technology.For the redundant degree demand of fuel measurement,the method of combining the whole oil quantity measurement with consumption measurement is adopted in this case,which not only realizes the double redun-dancy mode of aircraft fuel measurement,but also avoids the common problems caused by the similar or identical princi-ple of the common double redundancy system.In order to enhance the safety,the system also adds a signal alarm part and the specific oil level alarm,so that the fuel measurement system reaches to 3 redundancies.In addition,through the study of the key technology of fuel measurement and the general quality characteristics,the paper puts forward the con-crete measures to solve the engineering problem of fuel measurement system.

关 键 词：油量测量系统 耗量测量 补偿 余度 关键技术 

分 类 号：V241.9[航空宇航科学与技术—飞行器设计]