first harmonic

常見例句

The component having the lowest frequency in a complex vibration (fundamental frequency or first harmonic).
復(fù)雜振動中頻率最低的成分（基頻或一次諧波）。
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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.
為了解決這些問題，本文提出了基波平均值的信號調(diào)理方法和間歇激磁方法，檢定結(jié)果表明了該種方法的有效性。
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.
本文采用了一種自適應(yīng)諧波檢測算法，以基波電流作為控制參考，運(yùn)用于三相三線制有源電力濾波器中。
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