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为了满足航空发动机转子、直升机旋翼等旋转部件动态参数的高速实时采集需求,提出了一种基于无线激光通信的旋转部件非接触参数遥测方法,并给出了基于该方法的参数遥测系统总体方案.重点研究了光电数据传输通道中发射激光器的信号驱动、光电探测器的信号放大及串行/解串器等关键电路的设计方法.设计了理论最大传输速率达622 Mb/s的无线激光通信收发模块,并测试了收发模块的实际性能.最后,研制了参数遥测试验样机,该样机在旋转状态下的数据传输率达300 Mb/s,满足航空发动机转子的动态参数遥测要求.
In order to meet the needs of real-time acquisition of dynamic parameters of rotating components such as aero-engine rotor and helicopter rotor, a non-contact parameter telemetering method for rotating components based on wireless laser communication is proposed. The overall scheme of parameter telemetering system based on this method is given. Focusing on the design of the key circuits such as the signal driving of the transmitting laser, the signal amplification of the photo detector and the serializer / deserializer in the photoelectric data transmission channel, a wireless laser communication transceiver with theoretical maximum transmission rate of 622 Mb / s Module, and tested the actual performance of the transceiver module.Finally, a parametric telemetry prototype was developed. The data transmission rate of the prototype is 300 Mb / s under the rotating condition, which meets the requirements of the dynamic parameter telemetry of aeroengine rotor.