基于数字信号处理器的航空发动机参数采集系统设计  

Design of Aeroengine Parameter Sampling Instrument Based on Digital Signal Processor

作　　者：刘轶[1] 陈明[1] 刘宗玉[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072

出　　处：《测控技术》2005年第1期16-18,共3页Measurement & Control Technology

摘　　要：介绍了数字信号处理器(DSP)在航空发动机参数采集系统中的具体应用。采用TMS320C31浮点数字信号处理器为核心设计了航空发动机参数采集系统,该系统对航空发动机的排气温度、滑油温度、滑油压力、液压压力、燃油压力等模拟量和发动机燃油瞬时流量、燃气涡轮转速、旋翼转速、自由涡轮转速等频率量以及放气阀门开关、轮载开关等输入开关量进行采集和处理,并输出相应的告警信号给飞机的告警系统,同时将采集到的各种信号通过RS-422A串行通信链路传送给发动机参数显示系统和备份设备。The use of DSP (digital signal processor) in aeroengine parameter sampling instrument is introduced. The floating DSP TMS320C31 is designed as a core in aeroengine parameter sampling instrument. The instrument samples analog signals, such as exhaust temperature, oil temperature, oil pressure, hydraulic pressure, fuel pressure etc., and frequency signals, such as engine fuel flow, rotating speed of gas turbine, rotating speed of rotor, rotating speed of freeturbine etc., and switch signals such as deflating valve switch, load switch etc.. The instrument can also output 8 warning signals to the warning system of airplane and transfer the data sampled to aeroengine parameter display instrument and other devices by serial bus RS-422A.

关 键 词：数字信号处理器 航空发动机 参数采集 

分 类 号：V241.62[航空宇航科学与技术—飞行器设计]