first harmonic

常见例句

The component having the lowest frequency in a complex vibration (fundamental frequency or first harmonic).
复杂振动中频率最低的成分（基频或一次谐波）。
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In order to solve those problems, this paper presents a signal conditioning method with the averaged value of the first harmonic and proposes an intermitted exciting mode.
为了解决这些问题，本文提出了基波平均值的信号调理方法和间歇激磁方法，检定结果表明了该种方法的有效性。
In this paper , a three-phase three-wire active power filter based on a adaptive harmonic detection , by using the first harmonic of the current as the reference control , is presented.
本文采用了一种自适应谐波检测算法，以基波电流作为控制参考，运用于三相三线制有源电力滤波器中。
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