摘要
理论分析和计算机模拟考证结果证明,可以利用互功率谱密度函数和传递函数所包含的相位信息来测量两相关动态物理量信号在指定频率成分上的相位差。本文还就相位测量中仪器系统的相移标定进行讨论。
The results of theoretical analysis and computer simulation confirm that the phase difference of two coherent dynamic physical quantity signals at a set frequency element can be measured by applying the phase information of the cross-power density spectrum function or transfer function. The phase difference calibrations between different measuring channels in an instrument system are also discussed.
出处
《计量学报》
CSCD
1996年第3期191-195,共5页
Acta Metrologica Sinica
关键词
物理量信号
动态物理量信号
相位测量
电气测量
Dynamic physical quantity signals
Phase measurement
Phase difference calibration
Zoom technique
