片语

Total Harmonic Distortion THD总谐波失真

total harmonic voltage distortion电压失真

total harmonic distortion jumping谐波失真跳跃

low total harmonic distortion低谐波失真

total harmonic distortion minimization或最小化总谐波畸变率

THD Total Harmonic Distortion总谐波失真

total harmonic distortion rate谐波总畸变率

Total harmonic distortion test总谐波失真加噪声测试

英汉例句

• active pfc techniques have been researched systematically and used widely in the recent twenty years because of high power factor (pf) and low total harmonic distortion (thd).

  有源pfc技术具有功率因数高和总谐波含量小等优点，在过去的二十年里，得到了长足的发展和广泛应用。

• as the non-linear nature of the traditional transformer, the input line currents have significant harmonics and high total harmonic distortion (thd).

  然而，由于传统的整流装置本身的非线性特性，会使网侧输进电流严重畸变，谐波含量多。

• the experiment results show input power factor, distortion factor, crest factor, total harmonic distortion and harmonic components.

  给出了输入功率因数、畸变因子、峰值系数、总谐波畸变率和谐波分量的实验结果。

• reducing the total harmonic distortion (thd) of the magnet current in the parallel resonant network is the key technique for the magnet current tracking accuracy.

  在并联型怀特电路中，降低磁铁电流的高次谐波含量，即电流总谐波畸变率（thd）是保证磁铁电流跟蹤精度的关键所在。

• the dynamic range and total harmonic distortion of digital recording system are different from analog recording system.

  数字录放音系统的动态范围和总谐波失真与模拟录放音系统相比是有差别的。

• the spec-4 actually had lower total harmonic distortion and lower intermodulation distortion than its more expensive brother.

  在spec-4实际上有较低的总谐波失真低于其更昂贵的兄弟互调失真。

• a new method for measuring the total harmonic distortion of ultra low frequency signa1 by means of fft algorithm is presented and the measuring error is analysed in this paper.

  本文提出了采用fft算法来测量超低频失真度的方法，解决了超低频失真度的测量问题。

• in this paper, the meanings of dynamic range and total harmonic distortion of digital recording system and their measurement principles are discussed.

  本文讨论了数字录放音系统的动态范围和总谐波失真的意义及其测量原理。

• the turns of the transformer additional winding should be determined from the trade-off between lower voltage across the energy-storage capacitor and lower total harmonic distortion of input current.

  因此，在选择变压器附加绕组匝数时要折中考虑，在保证储能电容电压较低时，又要使变换器输入电流谐波满足有关标準。

• total harmonic distortion below 9% is obtained.

  结果显示总谐波失真小于9% 。

• it deeply analyzes composition of noise and its effected factor, and introduces how to measure the signal-to-noise ratio, total harmonic distortion and effective number bits of the adc.

  深入分析了a/d变换器的噪声组成及其影响因素；介绍了信噪比、谐波失真度、有效位数的测量与实现。

• phase shift resolution and total harmonic distortion (thd) are two important parameters used to evaluate the equality of sine waveform generated by digital synthesis.

  移相细度和失真度是评价数字合成正弦波质量的两项重要指标。

• the experimental results verify that the prototype can make the power factor reach over 0.99, and make total harmonic distortion reach lower than 7%.

  实验结果表明该原理样机能将功率因数提高到0.99以上，总谐波畸变小于7%。

• both the computer simulation and model experiment prove that it can reduce the total harmonic distortion of the harmonic current from 30.53% to 9.45% and make the waveform approach to sine wave.

  通过仿真和电路试验证明，该滤波电路能将电流畸变率由原来的30.53%降低到9.45%，从而使交流侧的电流接近正弦波。

• the total harmonic distortion (thd) can be reduced by the instantaneous voltage feedback control.

  采用电压瞬时值反馈降低了输出电压波形的总谐波量。

• it can be seen from model experiment that the total harmonic distortion (thd) of the current in the three-phase rectification circuit can be reduced from 30% to about 10%.

  通过模拟试验证明，三相整流电路交流侧电流中的谐波含量由原来约30％下降到约10％。