波调

基于PLC的PWM波调功温控系统

PLC Based Power Regulation and Temperature Control System using PWM Sine Wave Generation

研究Cr~（4+）：YAG晶体作为被动调Q元件时的一些基本特性；并给出当考虑腔内光强的高斯分布时连续波被动调Q的速率方程；

The fundamental properties of Cr4 + : YAG is researched , and rate equation is given when the Gauss 's distribution is considered .

解调方案同样采用四次谐波混频器在毫米波已调信号上进行载波同步。

Fourth-harmonic mixers are adopted in carrier recover in the modulation millimeter wave QPSK signal .

毫米波VCO电调特性的线性校正方案研究

Investigation of Linearization Schemes for Millimeter Wave VCO Tuning Characteristics

以Cr4+∶YAG晶体作为可饱和吸收体，氙灯作为抽运源，实现了Nd3+∶YAG晶体在0946μm波长处的调Q运转。

With Cr 4 + ∶ YAG as the saturable absorber and xenon flash lamp as the pumping source , passively Q-switched quasi-three-level laser operation of Nd 3 + ∶ YAG at 0.946 μ m is realized .

方波交流TIG焊时，电流正负半波比例可调，对于减少钨极烧损和提高焊接速度有着非常重要的作用。

In the square wave current TIG welding , the current ′ s proportion is adjusted to posstive / negative half wave . It is important to reduce wolfran electrode weariness and improve the welding rate .

本文给出了毫米波VCO电调线性度的三种定义，系统地讨论了毫米波VCO电调特性的电抗补偿线性校正、开环线性校正及闭环线性校正方案。

In this paper , three definitions of the VCO tuning linearity are presented , and the reactance compensation , open loop , and closed loop linearization schemes for millimeter wave VCO tuning characteristics are discussed systematically .

基于同轴TM（81n）模谐振腔毫米波多注速调管研究

Research on Cylindrical Coaxial TM_ ( 81n ) Mode Cavity Resonator for Millimeter Wave Multi-beam Klystron

基于表面等离子体波的光学可调滤波器的研究

The Study of Optical Tunable Filter Based on the Surface Plasmon Waves

亚毫米波准光可调功率分配器

Sub-mm wave quasi-optical variable power divider

两信号源统一控制便产生三项方波脉冲同步变频调压信号源。

The two signal sources are jointly controlled to produce a three-item square-wave pulse synchronous frequency conversion and voltage regulation signal source .

方波电源电流正负半波比例可调电路的设计

Designing the Circuit of the Adjusted Postive / negative Half wave Current ′ s Proportion

并采用该系统产生数字式的三角波、正弦波、方波、斜波等幅值可调的工业测试中常用的信号。

The System generates all kinds of digital waves , such as triangular wave , sine wave , square wave and oblique wave , which are widely used in industrial test .

该文利用回旋管注-波模式耦合理论，提出了返波振荡-速调群聚-行波放大复合互作用回旋管工作原理。

Based on the beam-wave mode-coupling theory , a principle of gyrotron device utilizing a hybrid interaction scheme of Backward-Wave Oscillator , Klystron Ballistic-Bunching and Traveling-Wave Tube ( Gyro-BWO-KBB-TWT ) is presented in this paper .