摘要
针对气缸压力测试中的通道效应问题,提出一套频谱分析的方法,实际应用分析表明,该方法可实时确定通道效应的干扰频率,再通过适当的滤波及移相处理,能有效地去除通道效应的影响,获得比较准确、光顺的缸压曲线。
Power spectrum analysis is presented, which is applied for removing the effect of long transducer passage on cylinder pressure measurement. Application results show that the disturbed frequency can be decided and filtered by this method to obtain a more accurate and smooth curve of cylinder pressure.
出处
《柴油机》
2007年第6期1-4,共4页
Diesel Engine
关键词
气缸压力
频谱分析
信号处理
通道效应
cylinder pressure
spectrum analysis
signal processing
transducer passage effect
