相位滞后

根据楚雄台倾斜固体潮潮汐分析的结果，发现地震前潮汐相位滞后出现3&4个月的短期减小。

Rom the analysis of solid tide recorded in Chuxiong seismic station , it is discovered that the reduction of 3-4 months for tide phase lag appears before earthquake .

在PID校正中着重加强微分超前调节作用，缓解了系统相位滞后的问题，从而使系统得到较好的稳定度和响应速度。

It focuses on differentiation in PID adjustment , amends the phase lag problem and gets better systematic stability and response speed .

为实现永磁同步电动机的低速无传感器控制，采用了高频信号注入法，同时将EKF引入到高频信号注入法的滤波环节当中，避免了传统滤波器带来的相位滞后等问题。

Meanwhile , EKF was introduced into the filtering aspects of the high-frequency signal injection method . This method avoided the phase lag of traditional filter .

系统的性能指标达到幅值误差在±10%以内、相位滞后小于10°时，闭环频宽为10Hz。

The closed-loop bandwidth of the system reaches 10 Hz which assures the error of amplitude less than ± 10 % and the lag of phase less than 10 ° .

文中针对一种高速运算放大器AD713的自激进行了测试，并且通过相位滞后补偿网络消除自激振荡，工作稳定。

As high speed operation amplifier AD713 is example , self-excited oscillation is tested , phase compensate network is offered and the result is stable .

压电叠堆相位滞后特性的研究

Research on the Phase Lag Property of Piezoelectric Ceramic Laminated Pile

得到了相位滞后的3个主要影响因素；

Three main influence factors of the phase lag property were discovered .

潮汐相位滞后变化与地震的关系

Relation between variation of tide phase lag and earthquake

给出了一种在有金属镀膜的陶瓷真空盒中测量这种相位滞后的实验方法及结果。

An experimental method and the result obtained have been presented in this paper .

湍流边界层雷诺应力和壁脉动压强相位滞后分析

Phase delay of the Reynolds stress and wall pressure fluctuation in wall shear flows

测试了并联机器人与力传感器通道的相位滞后情况。

The phase delay from the parallel robot to the force signal channel was tested .

仿真结果表明相位滞后与多余力均随着频率的增加而增加。

Phase delay and extra force increased with the frequency was embodyed in the simulation result .

系统要求滤波器既能滤除各种噪声，又不产生相位滞后。

The filter is required to filter some noises and keep against lag of system phase .

基于测试信号法计算浙江省机组励磁系统相位滞后特性；

Calculating the excitation phase-frequency characteristic of the generators in Zhejiang based on the test signal method .

高精度伺服系统因为要采用衰减很大的相位滞后校正而使系统成为条件稳定系统。

It is necessary for high precision servo systems to use phase lag compensation with large attenuation to make the system stably conditioned .

后者实现相位滞后的变换和幅值的非线性变换，以达到对压电陶瓷实际输出的逼近。

The latter is used to carry out the nonlinear transform of phase and magnitude for the approximation of output of piezoceramic actuator .

介绍了计算固体潮潮汐参数（潮汐因子和相位滞后）的非数字滤波调和分析方法的原理、计算公式和程序。

The method of non digital filter harmonic analysis ( NDFHAM ) for computing the earth tidal parameters and its principle and formulation are recommended .

考虑到湍动对流建立的动力学过程，与似稳流场的混合长理论相比，湍动对流脉动分量的振幅减小了，并且出现一个相位滞后。

Taking account of the dynamic process of turbulent convection , turbulent vicious forces and pulsational amplitudes of heat convection and turbulent pressure decrease , and a phase-lag arises .

对于非铁磁性金属材料，这种相位滞后非常微弱，而且由于趋肤效应和涡流的影响，阻尼作用导致的相位滞后难以观测。

For the non-ferromagnetic metal , the phase-lag is very faint , and owing to the influence of conductor skin effect and eddy current , it can hardly be detected .

特征值分析表明，时滞τ的影响可以转化为与角频率ω相关的相位滞后和与衰减因子σ相关的增益放大，从而对闭环系统的区间模式阻尼和系统稳定性产生影响。

Eigenvalue analysis demonstrates that delay in time will cause lag in phase with respect to frequency of oscillatory mode and amplification in gain with respect to damping of oscillatory mode .

本文利用共振梁方法，通过对一点响应、相位滞后和共振频率的测量，可以获得粘弹性材料的复模量以及标准线性固体模型的三个参数，即松弛模量、松弛系数和蠕变系数。

The complex modulus and three viscoelastic parameters of standard linear model of solid are obtained by measuring the response , phase retardation at a point on beam vibrating at resonant frequency .

同时，讨论了潮汐因子、相位滞后等参数与岩性及井孔条件的关系。

And the relation among the tidal parameters , such as tide factor and phase lag , as well as the lithology and the conditions of the boreholes is discussed in this paper .

计算结果显示出机械结构引起的相位滞后占整个压电微作动器相位滞后量的主要成分。

The result of calculation and experimental measurement shows that the phase lag caused by mechanical structure is the dominant part of the whole phase lag property of the piezoelectric micro displacement actuator .

然后通过对轻敲模式中针尖与样品间作用力引起的相位滞后信号的锁相检测，来检测样品表面信息；

Then the information of the sample is measured by means of detecting and controlling signal of the phase delay , which is generated by the force between the tip of microprobe and sample .

研究结果表明低通滤波器引起的相位滞后将影响转子所能达到的最高转速，为提高闭环下的最高转速可以增加补偿器。

The results of the analysis show that the phase lag causing by the low pass filter would affect the highest speed of the rotor , and the compensator can increase the speed limit .

设计实现了四相正弦功率时钟，每级时钟与它的前一级相比，相位滞后90度，且其自身的功耗随频率增加有所下降。

A designed four-phase sinusoidal power clock is realized , the phase of each level lag of 90 degrees compared with its previous level , and its own power is decreased by increasing frequency .

从时域、频域和相位滞后等几方面对滤波处理后的信号进行了分析，得出了各种滤波法适用的范围以及在实际使用中应注意的问题。

Secondly , signal after filtered is discussed from several respects of time domain , frequency domain and phase lag . We can conclude practical range of each filter with respect to different applied condition .

试验结果表明，对于测试系统造成的信号幅值衰减和相位滞后，可根据测试系统自身的幅频和相频特性测试数据，对直接计算值进行误差修正。

Experimental results showed that the testing system can cause phase delay and amplitude decay of testing signals and the systematic error can be corrected effectively by testing the frequency response of the testing system .

结果表明：①溧阳台数字化观测和模拟观测资料的形态、观测精度、方差、潮汐因子中误差、相位滞后等参数无显著差异；

The results show that the parameters have no obvious differences between digital observation data and analogue observation in data form , observation precision , variance , median error of tidal factor and phase lag .

分析结果表明，两台仪器在低频段内产生的相位滞后及振幅畸变均很小，在固体潮观测资料数据分析处理时可忽略不计。

The result shows that the phase lags and amplitude distortion which were produced by two meters in low frequency waves are so small that we may neglect the effects on the water tide data .