EEC 检测系统??2 及??sp测试研究

根据自整角机的构造、工作原理和输入输出信号特性,提出了一种新型的硬件测角方法,并应用于EEC检测系统发动机试车模块.根据相关函数测角原理,设计了数字转换电路及其信号调制适配电路.适配电路中的多级并联放大电路、带通滤波器对试车过程中的随机干扰信号,尤其是振动引起的噪声具有很强的抑制作用.结果表明,该方法可以高精度地跟踪自整角机的角度变化,这对于研究某型涡扇发动机α通道的控制规律及其检查排故具有重要的工程意义.

Study on α2 and Φsp Testing of the EEC Detecting System

According to the st ructure, principle and IO char acterist ics of the automat ic adjust- ang le t rans?? former, this paper pr opo ses a new hardw ar e measur ing method and has been applied in the test run part of the EEC Detect System. Based on the cor relat ive funct ion theory, A\ D t ransform circuit s and sig nals mod?? ulat io n circuit s are desig ned. The mult i- par al lel- mag nif ication circuit s and the band- pass f ilter can w ell rest rain random interfering noise, especially g enerated by test run v ibrat io n. Result s demo nstr ate that the method can t race the ang le chang e o f the automat ic adjust- angle t ransfo rmer w ith high pr ecision. It is of much importance in studying the co nt ro l reg ulat ion of ??passag e, EEC detect ing and its failure recovery.