摘要
通过压力传感器、放大器、A/D卡和计算机对柴油机供油系统中泵端和嘴端压力波信号进行了采集 ,然后用小波分析法对其时频特性进行了研究。研究结果表明 :通过小波变换 ,可将柴油机供油系统中压力波信号的各个频带成份清晰地显示出来 。
In this paper,by using pressure sensor,amplifier,A/D card and computer,the signal of pressure wave near pump and near nozzle in fuel injection system of diesel engine was gained,and a study by using wavelet analysis on time frequency characteristics of the pressure waves was made. The results could show that each part of the frequency of the pressure wave in fuel injection system of diesel engine can be clearly displayed by wavelet transformation and the difference between pressure waves near pump and pressure waves near nozzle could be seen after the wavelet analysis.
出处
《洛阳工学院学报》
2001年第3期36-39,共4页
Journal of Luoyang Institute of Technology
基金
河南省杰出青年基金项目 ( 9918)
