mode exciter

The quasi-optical mode exciter with the method of quasi-optical conversion has high purity output mode, but its disadvantage is narrow bandwidth, low efficiency, complicated structure and many of its modules need high accuracy fabrication and assembling.

利用准光变换设计的准光模式激励器虽然其输出模式纯度高，但其输出为点频，频带极窄，效率较低，且部件多、结构复杂，各部件的加工装配精度要求高。

As a result, a new mode of brushless exciter appears.

无刷励磁技术是为了适应大机组励磁而出现的一种新的励磁方式。

Research on the Magnetic Field Control of Large Adjustable Speed SM with Brushless Exciter As a result, a new mode of brushless exciter appears.

大型调速同步电动机无刷励磁磁场控制的研究无刷励磁技术是为了适应大机组励磁而出现的一种新的励磁方式。

The high frequency fatigue testing machine mentioned in this thesis controls electromagnetic resonant mode exciter through the feedback of load sensor.

加载的频率可以达到80-250Hz，我们所研制的高频疲劳试验机控制器，是通过负荷传感器的反馈来对电磁谐振式激振器进行控制的。

The short-circuit phase of KFD-3 loss of strong excitation is found by analyzing the current and voltage phasor as two-phase short circuit on HV side of transformer. The wiring mode of relaying impact exciter is presented.

通过分析变压器高压侧两相短路时的电流、电压相量，得出KFD3失去强励作用的短路相别，分析得出继电强行励磁装置接线方式。