非等时触发下时域平均的实现方法

A Method to Realize Time Domain Averaging When Triggering at Irragular Time Intervals

为解决因时标点波动造成时域平均技术在对旋转机械某些呈周期性变化的工作参数进行除噪时失效这一问题,本文提出了利用高速、同步数据采集系统在采集时标信号及工作参数后,对所得工作参数采样值按时标周期进行变阶插值调整,从而实现时域平均的一种方法。本文通过实验证明,这一方法确实可行并有足够的精度。

It is a time domain averaging method that using high speed synchronic data sampling system interpolately adjusts the sampling vaeues of working parameters according to the period of time scale after sampling the signals of time scale and working parameters. Experiments have proved that this method is really available and has enough precision.