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- Synchronous rectification produces a ripple frequency twice that of the excitation frequency and thus is easier to remove with a lowpass filter. 同步稳压产生两倍激励频率纹波频率,因此更容易被低通滤波器去除。
- The new modified formula not only meets with our experiment result, but also can explain the examples of relationship between the speed and the current ripple frequency of DC motors in the literature. 新的修正公式不仅能够解释文中的实验结果,也能满足以往文献提出的直流电动机转速与脉动电流频率之间的关系。
- Modified formula for sensorless DC motor speed estimation was proposed through the test for relationship between the current ripple frequency and the rotation speed in a 4-pole DC motor. 摘要根据4极直流电动机的转速与脉动电流频率关系的实验结果,对现有的无传感器直流电动机测速公式提出了修正意见。
- Effect of Counter EMF on Ripple Frequency of Current in DC Motor 直流电动机反电动势对其电流脉动频率的影响
- Effect of Commutation Process on Current Ripple Frequency in DC Motor 换向过程对直流电动机电流脉动频率影响的分析
- A ripple of laughter went through the audience. 观众中响起一阵轻轻的笑声。
- A ripple, as on the surface of water. (水面上的等)细浪,涟漪
- He varied the transmission frequency. 他变换了无线电传送的频率。
- The pebble made a ripple on the surface of the lake. 石子在湖面上激起一个涟漪。
- She lay on the bank, listening to the ripple of the stream. 她躺在河岸上,听着小河的潺潺流水声。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位,等于每秒一周
- A breeze ripple the surface of the sea. 微风使海面水波荡漾。
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- To flow or ripple with a murmuring sound. 潺潺地流流动或滴落并且带有潺潺的声音
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- A serial counter is also called a ripple counter. 串行计数器亦叫脉冲型计数器。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- A ripple of fear passed through him. 一股恐惧感传遍了他的全身。
- It does not ripple like a brook in a garden. 它不象花园里的小溪那样潺潺汩汩。
- To flowor ripple with a murmuring sound. 潺潺地流流动或滴落并且带有潺潺的声音。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries