Regardless the sign of chirp every harmonic order is broadened in different degree for different order number. 无论正负啁啾,所有的谐波谱均被展宽。
In testing group the correctness of harmonic order can be detected to obtain effective results of harmonic analysis, so the synchronous tracking of non-integer harmonics and harmonics with small frequency interval can be realized. 在测试组中检测谐波次数的正确性,获得有效的谐波分析结果,实现对次谐波和频率相隔很小的谐波的同步跟踪。
On each harmonic order, the harmonic impedance can be assessed by transfer function between fluctuation quantities of voltage and current. 在各次谐波上利用波动量的符号特征,研究电压和电流局部波形同步分解的传递函数特性,实现谐波阻抗估计。
Second, the lower harmonic order of the instantaneous speed variation have been analyzed, and the correlation have been found between the phase of lower harmonic and the fault cylinder. 进一步对有故障时瞬时转速波动信号的低谐次振幅分析,发现其相位角与发生故障的气缸有一定的联系,从而利用低谐次振幅的相位角来诊断故障缸的位置。
The lower the harmonic order, the more rapidly its amplitude increases. 谐波阶次越低,增加速度越快。