primary harmonic

  • 释义

    一次谐波

数据更新时间:2026-04-19 18:50:39
1、

The results also indicate that when special filters are connected to secondary three-phase system, the primary harmonic currents decrease by about 28% than by using conventional two-phase filters.

结果还表明,当在二次侧三相系统接入文中提出的特殊滤波器时,谐波电流比用常规两相滤波器降低约28%。

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2、

The primary investigation of intermittent second harmonic contrast imaging in normal liver

正常肝脏间歇二次谐波声学造影的初步研究

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3、

It produces the primary signal first to carry on the display of time domain, the display of frequency domain and frequency spectrum, and compose the observing signal; finally it carries on the correlation analysis again after the signal filtered to remove the harmonic interference signal.

首先是对原始信号进行时域波形显示,频域频谱显示,初步观察信号的组成,最后再对滤波后的信号进行相关分析,除掉谐波干扰信号。

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4、

This integral can describe the efficiency of second-harmonic generation accompanying the primary Lamb wave time-domain pulse, as well as the dispersion degree between the primary and the double frequency Lamb waves.

该积分表达式可表征基频兰姆波时域脉冲传播过程中的二次谐波发生效率,以及基频与二倍频兰姆波模式之间的频散程度。

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5、

Through second-order perturbation approximation and modal expansion approach, the second-harmonic generation of a primary Lamb wave propagating in layered structures has been analyzed, and the general solution to second-harmonic displacement fields has been obtained.

采用二阶微扰近似和模式展开方法,对分层结构中兰姆波的二次谐波发生问题进行了深入研究,得到了二次谐波声场的一般表达式。

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