自由振荡

用可控电压源实现LC电路的自由振荡

Using a controllable voltage source to realize a free oscillation of LC circuit

这种现象被称为自由振荡的地球。

This phenomenon is called the free oscillation of the Earth .

TEACO2激光器自由振荡输出光谱的实验研究

Experimental study of output radiation spectra in a TEA CO_2 laser without selective elements

标准Morlet小波变换检测地球自由振荡等离子体振荡分析仪

Normal Morlet Wavelet Transform and Its Application to Detection of the Earth 's Free Oscillations

利用天然地震波测量Q值的主要方法有：利用地球自由振荡资料、利用体波、利用面波和利用尾波来研究Q值。

The major methods of measuring Q-value by the natural earthquakes are the ones of using the data of free vibration of earth , body wave , surface wave and coda .

BEPC储存环自由振荡频率测量系统包括前端电子学系统、测量系统和激励系统。

The tune measurement systems in the BEPC storage ring include the front end electronic system , PLL measurement system and beam exciting system .

建立了一套二维面阵CCD光束质量诊断系统，测量了磷酸盐钕玻璃板条激光器自由振荡和调Q输出激光的光束质量因子M2。

A two-dimensional CCD beam quality diagnositic system has been built up , by means of which the beam quality factor M 2 for Nd : hlass laser in free-running and Q - switching operatins has been measured .

本文提出了一个用大气自由振荡解析的垂直正规模为正交函数系构成一个完备的Hilbert空间，利用广义Fourier展开的概念，在垂直方向进行广义Fourier展开，对大气数值模式进行垂直积分。

This paper develops a technique of vertical integrations of numerical models of the atmosphere using generalized Fourier expansion in which orthogonal functions are analytic vertical normal modes , that construct a complete Hilbert space , two systems of vertical normal modes are used .

基于上述三种脉冲源技术开发出自由振荡W波段脉冲收发前端，注入锁定W波段脉冲发射机，连续波斩波W波段脉冲注锁放大器以适用于不同的系统要求。

With the three ways discussed above , three systems free oscillating W band pulsed millimeter front , injection locked W band pulsed transmitter , and continuous wave chopped W band pulsed injection locked amplifier are developed in order to under different conditions with varied systems .

当仅对差分输出振荡信号的一端进行测试时，自由振荡频率为5.81GHz，在5MHz频偏处的相位噪声为-101.62dBc/Hz。

The free-running frequency is 5.81 GHz , tested on one end of the differential output signals . The phase noise tested is -101.62 dBc / Hz at 5 MHz offset .

阻尼自由振荡电路的量子力学处理

Quantum mechanical treatment of a damped free oscillatory electric circuit

简述了自由振荡和光栅选频化学激光技术及其在化学动力学中的应用。

The free-running and grating selection chemical laser technique is briefly elucidated .

自由振荡能触发可预测地震的前震吗？

Can free oscillations trigger foreshocks that allow earthquake prediction ?

自由振荡激光脉冲能量的时序分析

Time series analysis on laser pulse energy under random oscillation

地球的自由振荡研究（综述）

St lies on Free Oscillations of the Earth ( An Overview )

热带有限区数值预报模式中的自由振荡

Free oscillation in numerical prediction model for tropical limited areas

汶川大地震激发的地球球型自由振荡

The Earth 's Spheroidal Oscillations Induced by the Wenchuan Earthquake

特高压输电线路短路故障时的自由振荡频率分析

Analysis on Natural Frequencies of Ultra-high Voltage Transmission Lines in Short Circuit Fault

自由振荡激光引爆机理的初步研究

Preliminary study on free oscillation laser ignition of explosives

地球自由振荡的研究与检测

Studies and Detections on the Earth 's Free Oscillations

钛宝石再生放大器自由振荡特性的实验研究

Experimental Investigation of the Performance of a Free-running Ti : sapphire Regenerative Amplifier

重力技术在地球自由振荡检测研究中的应用

Application of the gravity technique on detection of the Earth ′ s free oscillations

利用双阳台水管观测资料检测地球自由振荡

Detecting free oscillations of the earth by using water-tube tiltmeter observations at Shuangyang station

数字化水位仪观测的苏门答腊大地震激发的地球球型自由振荡

Earth 's Free Spheroidal Oscillations of the Great Sumatra Earthquake Observed with Digital Water Level Meter

自由振荡风洞实验获取的随振幅变化的动导数的应用问题研究

Research on the flight-dynamic application problem of the dynamic stability derivative obtained from wind-tunnel free-oscillation experiment

通过自由振荡了解地幔

Free oscillations illuminate the mantle

地球自由振荡和面波频散的理论计算

The theoretical calculation of the free oscillation of the earth and the dispersion of the surface waves

而按状态反馈构成的控制系统，不但能防止转子定轴转动失稳，还能有效地抑制其自由振荡，具有更好的减振效果。

State feedback system can prevent the instability of system and the vibration of zero-input response simultaneously .

本文阐述了自由振荡频率的概念，并对各种短路类型下的自由振荡频率进行了分析研究。

This paper describes the concept of the nature frequencies , and analyzes them in a variety of short-circuit types .

观察了调制器的超声驻波场波前轮廓，位相光栅衍射光斑，激光器自由振荡波形以及实现主动锁模时的超短脉冲序列波形。

The ultrasonic stationary wave field distribution , the diffraction pattern , the relaxation oscillation and ultra-short pulse train are observed .