harmonic distortion method 中文意思是什麼

harmonic distortion method 解釋
諧波畸變法
  • harmonic : n 1 【音樂】泛音；和聲。2 〈 pl 〉【數學】諧函數，調和函數。3 【物理學】諧波，諧音。adj 1 和睦的...
  • distortion : n. 1. 歪扭，扭曲。2. 【電學】（信號、波形等的）失真；【物理學】（透鏡成像產生的）畸變；【醫學】扭轉，變形。3. 竄改，歪曲，曲解。adj. -al
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. In this paper, a method assessing harmonic impedance by synchronously layered distortion waves is proposed, which is based on the " fluctuations method " - a simple and effective means. however the method is based on the fourier transform, which can just precisely analyze the signals whose cycle is integer times as broad as that of fundamental wave. with sampling windows widening, the variations of distorted signals in a fundamental period are weakened

    本文是以一種被廣泛採用的非干預式諧波阻抗估計方法? ? 「波動量」法，的基礎上，針對現有方法以直接的fourier變換為分析工具，只能對基波周期的整數倍窗口采樣信號進行分析，畸變信號在一個基波周期內的變化隨采樣窗口增大而被弱化，並且，諧波次數越高，解析度就越低，大大限制了諧波阻抗估計的準確性的提高。
  2. Least square method based measurement of sine wave total harmonic distortion

    基於最小二乘法的正弦波諧波失真度測試
  3. Study of the harmonic distortion in testing circular division ruling error using constant angle method

    常角法檢測圓分度刻劃誤差諧量失真的研究
  4. The detecting method of dvr is different from harmonic and reactive current detecting methods. it need detect not only total harmonic distortion but also the difference between fundamental wave component and reference value

    Dvr的檢測方法與諧波、無功電流的檢測不同，不但需要檢測出除基波分量之外的總畸變分量，還要檢測出基波分量與基波基準值之差。
  5. Computation method based on fast fourier transformation ( fft ) is studied deeply, whose measurement accuracy is 0. 2s. the computing indexes involve voltage, current, power, frequency, phase, electric power, the harmonic ratio and the total harmonic distortion ( thd ) of phase voltage and phase current

    深入研究了測量精度為0 . 2s級的基於快速傅立葉變換（ fft ）的電壓、電流、功率、頻率、相位、電能等電力參數和各相電壓電流各次諧波含量、諧波含有率、諧波總畸變率的計算方法。
  6. This paper introduces a method of calibrating and processing angular speed fluctuation in ni sampling system - pxi - 6281, it accomplishes the acquisition of angular speed fluctuation by distortion of signal, analyzing fundamental wave, high order harmonic of angular speed feedback signal and calculating the amplitude ratio of base wave and high order harmonic

    摘要利用ni的pxi - 6281高速數據採集卡來完成角速度波動信號的採集，借鑒信號失真度的概念，分析角速度反饋信號的基波和高次諧波大小，求取高次諧波與基波幅值比，作為角速度波動率。
  7. The error of distortion which harmonic distortion meter detects can be least controlled 1. the lowest frequency which harmonic distortion meter can detect is 0. 0001hz. but, generally, this kind of meter is so costly and difficult to operate that the major portion of the distortion meters applies the method of suppressed fundamental harmonic

    採用諧波分析法的失真度儀測得的失真度的最小誤差可控制在千分之一以下，頻率最低可達到萬分之一赫茲，但普遍存在儀器價格較貴，操作繁瑣的缺點，現在用的失真度測試儀大多是用基波抑製法。
  8. It is an effective method to overcome the periodic disturbance. in ac power system, nonlinear loads are major sources of total harmonic distortion ( thd ). this built the motivation for this dissertation

    為了解決逆變電源系統中非線性負載引起的波形畸變問題，本文對基於重復控制理論的逆變電源控制技術進行了深入的研究。
  9. The initial solutions of two - dimensional harmonic waves are given by landau expansion and the mean - flow - distortion is calculated by the approximation equation. furthermore, we employ iteration method and “ predictor - corrector approach ” to solve the nonlinear equations in order to implement the marching procedure, and the result of nonlinear two - dimensional stability is obtained precisely. the effect of pressure gradient is also studied here

    文中所發展的數值方法，包括採用landau展開給出二維諧波的初始解、模擬流場的均流變形以及採用迭代和預估校正方法實現非線性方程的求解和推進，得到了二維擾動的非平行非線性穩定性的精確結果。
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