查询词典 standing wave

Due to shrinkage of the beam waist of laser mode to match the pump beam, this laser can attain very high intensity in the pump region of gain medium and therefore most of its gain is depleted even by a standing wave.

由於雷射模会自动调整大小以符合泵浦光斑，雷射可以在被帮浦增益介质区域内达到很高的光强度，而使得大部分的增益被高强度的驻波消耗掉。

The method is to draw incident power and reflection power of radar system through directional coupler and bridge circuit,and carries out pretreatment for gathered data with micro control unit,then calculates standing wave ratio.

文中提出一种驻波比在线测试方法，该方法通过定向耦合器和电桥电路将雷达系统的入射功率和反射功率提取出来，然后用单片机对所采集到的数据进行预处理，从而计算出驻波比。

In order to reduce the effect of probe errors in near-field antenna measurement, the solutions are proposed as follows: On the one hand, theoretical formula of probe-compensated is derived; on the other hand, drop-shaped probe is designed and near-zone gain, far-field patterns, axial ratio, main lobe width, input impedance, voltage standing-wave ratio, electromagnetic field and current distribution of probe are obtained through the computer simulation.

针对近场测量中的重要误差源之一&探头&的影响，本文提出解决方法：一方面用探头补偿的方法，根据洛仑兹互易定理和微波网络理论对补偿的解析式进行详细推导；另一方面用两种不同的仿真软件求解终端开口矩形波导探头的近场增益、远场方向图、轴比、主瓣宽度、输入阻抗、电压驻波比、电场分布、磁场分布、表面电流分布等特性参数，可实现探头增益的修正。

Ice-dielectric heating occurs most strongly at the voltage antinodes in the standing wave pattern, whereas skin-effect heating occurs most strongly at the current antinodes.

冰介质加热时发生最强烈的电压波腹的驻波模式，而皮肤的作用最强烈加热发生在当前波腹。

The Smith Impedance Chart is a important tool to analyze reflectance、Standing wave ratio and impedance of Device Under Test. It is also used in vector network analyzer.

Smith阻抗图是分析待测器件反射系数、驻波比和阻抗的重要工具，并且常用于矢量网络分析仪中。

The electric characteristic parameters of this novel sleeve antenna are calculated, including the input impedance, voltage standing wave ratio, horizontal gain and radiation pattern.

研究了这种新型套筒天线的输入阻抗、电压驻波比、增益及辐射方向图等电特性。

Experimental results of the second harmonic sound pressure level(SPL2)curves in frequency domain show that Prof.MAA's theorydescribes the behavior of the second harmonics satisfactorily in whatis called "Steady Region" of standing wave field.

频域内，大振幅驻波场二次谐波声压级曲线的实验结果，确认马大猷教授的理论为驻波场&稳定区&的极好描述，所提理论在本实验研究中，得到了肯定结果。

For the first time the concept of using a standing-wave method to analyze the Bragg resonators is proposed.

全面、系统地导出了轴对称渐变波导开放式谐振腔中高频场满足的普适方程，首次考虑了为前人所忽略的TM型寄生模式的影响，应用于渐变复合腔并分析了多种情况下这种影响的程度。

Periodic fluid pulsation in aeroplane hydraulic piping could induce fluid-construction vibration and lead to fatigue damage. It is impossible to find the error sensor's optimization location because of the pressure standing wave, and the pulsation attenuation effect is not perfect when adopting pulsation attenuation at single point. For this reason, a distributed active control method of fluid pulsation was presented. To avoid stationary point in all aviation states, several fluid pulsation actuators and error pressure sensors were placed along the piping. The second fluid pulsation produced by actuators can counteract the primary pulsation brought by aviation piston pump and make the mean pulsation of whole piping minimum when adopting adaptive feed- forward control and the filtered-X least mean square algorithm.

针对飞机液压能源管路系统中的周期性流体脉动诱发流固耦合振动，导致管路疲劳损伤的问题，针对管路中存在压力驻波特性，在采用单点消振时寻找误差传感器最佳布局位置困难而引起脉动抑制效果不理想的缺点，提出了一种分布式流体脉动主动控制方法，即沿管路不同位置布置多个主动消振阀和误差压力传感器，在任意飞行阶段，避开压力驻波点，以误差压力传感器的脉动测量值为控制目标，采用一种针对周期脉动主动控制的自适应前馈控制法和多通道自适应滤波－X LMS算法，调整控制器参数，使主动消振器产生的次级脉动与管路中的初始脉动相互抵消，达到整个管路中的平均流体脉动最小的效果。

The voltage standing wave ratio is a measure of how well a load is impedance-matched to a source.

文中给出了反射系数、阻抗和导纳的作图范例，并用作图法设计了一个频率为60MHz的匹配网络。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。