摘要
目前飞行试验中温度和应变参数均采用传统传感器,每个参数单独测试采集,这种方法布线多,改装复杂,且飞机测试参数日益增多,对传感器重量、体积以及能否实现分布式测试要求迫切。通过安装光纤光栅传感器网络对飞机上多处应变/温度进行分布式测量,并通过与传统传感器比对,建立模型提高测量精度,实现多点应变、温度等参量同时测试,极大地减少加装在飞机上的传感器数量和重量,降低改装难度。
At present,the traditional temperature and strain sensors are used in the flight test.Each parameter is tested and collected separately.This method has many wiring,complex refitting.But there will be more and more aircraft test parameters.It is very important to decrease the weight,volume and to realize distributed test of sensors.Through the installation of fiber bragg grating(FBG)sensor network,the distributed measurement of strain/temperature in many places on the aircraft is carried out.Compared with the traditional sensor,the model is established to improve the measurement accuracy and realize the simultaneous measurement of multi-point strain,temperature and other parameters,thus greatly reducing the number and weight of sensors installed on the aircraft and reducing the difficulty of refitting.
出处
《科技创新与应用》
2020年第8期144-145,148,共3页
Technology Innovation and Application
关键词
光纤光栅
飞行试验
温度
应变
fiber bragg grating(FBG)
flight test
temperature
strain
