1) DC bias magnetic field
直流偏置磁场
1.
The dependence of the output displacement of the actuator on AC driving magnetic field frequency and DC bias magnetic field is investigated.
0μm,同时输出位移波形随频率也有明显变化;直流偏置磁场对输出位移的影响规律随工作频率不同而不同;基于叠层复合Terfenol-D的驱动器的涡流损耗较基于块状Terfenol-D的驱动器的涡流损耗大大降低。
2) bias magnetic field
偏置磁场
1.
Influence of bias magnetic field on magnetoelectric effect of magnetostrictive/elastic/piezoelectric laminated composite;
偏置磁场对磁致伸缩/弹性/压电层合材料磁电效应的影响
2.
The dependence of magnetostatic wave(MSW)modes and its bandwidth on the extermal DC bias magnetic fields in the magneto-optic film was illustrated.
本文完整地展现了磁光薄膜中任意倾斜的外加直流偏置磁场对微波静磁波激发模式及其带宽的影响,实现了对不同静磁模的统一考虑,为进一步分析磁光Bragg器件的衍射性能提供理论基础。
3) DC bias
直流偏磁
1.
Research on Dc Biased Transformers Caused by HVDC or Geomagnetic Storm;
直流输电和磁暴引起变压器直流偏磁的相关研究
2.
Calculation and study for three-phase DC bias of converter transformer
换流变压器三相直流偏磁的计算研究
3.
Study of vibration of transformers under DC bias
变压器直流偏磁的振动特性研究
4) DC biasing
直流偏磁
1.
DC biasing can cause transformers noise increasing,vibration intensified,local overheating and even damaged.
直流偏磁会导致变压器噪音增大、振动加剧,可能引起变压器局部过热甚至损坏。
2.
The enormous ground return current caused by HVDC (high voltage direct current) system s mono-pole ground return operation mode will result in the main transformer DC biasing at the substations near the ground electrode, thus it has disadvantageous effect on AC (alternative current) system.
高压直流输电系统单极大地回线方式运行时,巨大的入地电流将会使接地极附近的变电站主变压器产生直流偏磁,对交流系统造成不利影响。
3.
The mechanism of DC biasing for output transformer of SPWM switching converter was analyzed.
分析了SPWM开关型变换器中输出变压器产生直流偏磁的机理。
5) DC magnetic bias
直流偏磁
1.
Influence of DC magnetic bias on excitation current of transformer;
直流偏磁对换流变压器励磁电流的影响
2.
The authors research such existing technical problems as electromagnetic environment, over-voltage and insulation coordination, DC magnetic bias, control and protection system, stability of hybrid UHVAC/DC power grid.
讨论了我国±800kV特高压直流输电工程的电磁环境、过电压与绝缘配合、直流偏磁、控制保护系统、特高压交直流混合电网的稳定性等方面存在的技术问题。
3.
HVDC from Tianshengqiao power station to Guangzhou and that from Three Gorges power station to Changzhou, the DC magnetic bias of large capacity power transformers occurs under monopole operation mode with earth return.
我国天(生桥)—广(州)、三(峡)—常(州)等直流工程单极大地回路运行时均出现了直流偏磁问题,只在电流超标的变压器中性点安装抑制装置不能从根本上解决该问题。
6) DC bias magnetization
直流偏磁
1.
Experimental studies and calculations of the exciting current in the transformer under DC bias magnetization;
直流偏磁下变压器励磁电流的实验研究及计算
2.
The phenomenon of direct current components of flux and exciting current arising in a power transformer is called DC bias magnetization.
造成振动的直接原因就是变压器的直流偏磁现象。
补充资料：直流
直流
Direct current
直流(direet。urrent) ，仅按一个方向流过电路或设备的电流称为直流。与交流电压相比，直流电压的极性是不变的。直流电流相当于电荷沿着闭合的电路以不变的方向流动或位移。直流电流和电压的幅值可以恒定，也可以随时间变化。 蓄电池和旋转发电机产生幅值恒定的额定直流电压，整流器产生幅值随时间而变的直流电压。整流器把交流电压变换为脉动的直流电压。 通常电站不是广泛地将直流电输配给一般用户，相反，在需要直流电(d。)能的场所，是把商业上合用的交流电(ac)能整流为直流电能。 「罗布(D.D.Robb)撰]
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条