CAJ | 학술논문

在航空发动机飞行试验中，需要对发动机转子基频激起的振动信号进行实时跟踪监视，在对振动信号进行监视的过程中需要可靠的测量发动机转速信号。当转速传感器因为某些原因输出信号为复杂信号时，一般的转速测量方法和设备无法直接测量，因此设计了航空发动机转速调理电路，对转速传感器输出的复杂信号进行预处理，得到幅值固定，频率与原信号一致的方波信号，从而为进一步发动机转速的准确测量和发动机振动的实时跟踪监视奠定了基础。
재항공발동궤비행시험중，수요대발동궤전자기빈격기적진동신호진행실시근종감시，재대진동신호진행감시적과정중수요가고적측량발동궤전속신호。당전속전감기인위모사원인수출신호위복잡신호시，일반적전속측량방법화설비무법직접측량，인차설계료항공발동궤전속조리전로，대전속전감기수출적복잡신호진행예처리，득도폭치고정，빈솔여원신호일치적방파신호，종이위진일보발동궤전속적준학측량화발동궤진동적실시근종감시전정료기출。
In the flight test of aero engine , tracking and monitoring of vibration activated by rotor are needed and real time ro-tate speed should be acquired accurately when monitoring engine vibration.Because of the complexity of tachometer signal which always used for rotate speed measurement, we couldn′t get rotate speed by usual equipment or method directly.In this article rotation speeds adjustment module is designed .The module will reshape signals tested by tachometer and output fixed range signal whose frequency is same to signals tested by tachometer.The reshaped signal is always quadrate wave and helpful for exact rotate speed obtaining, it′s also the basis of engine vibration monitoring for real time.