By comparing the simulation results of the open loop and the actual testing curves of the system, the possibility of using GA to gain the system parameters of hydraulic servo system was proven. 通过对开环模型进行仿真并与实测输出曲线对比,验证了遗传算法求解液压伺服系统参数的可行性。
In open loop condition, the eye movement velocity was considerably larger than the velocity of stimulus and the maximum gain of the open loop OKN reached about 100; it indicates that the OKN system is controlled by a negative feedback mechanism of hacking movement. 当固定受刺激眼形成开环状态时,OKN眼动速度远大于刺激速度,增益可达102左右,说明OKN系统是由运动跟踪的负反馈机制控制的;
Light of Laplace transform and transfer function of the open loop gain cofficient's influence on the stability of the system. 并用拉普拉斯变换与传递函数方法从理论上说明了开环放大倍数对系统稳定性所扮演的重要角色。
In order to study the intrinsic mechanism of this bi-stability phenomenon, we measure the open loop gain of the laser. 为了找出双稳态现象出现的原因,我们对于我们设计的环形双稳态激光器的开环增益做了测试,得到了增益曲线,并通过增益曲线解释了双稳态形成的机制。
Experimental results show that the device can precisely measure many parameters of IOA, such as input offset voltage, input offset current, open loop differential AC voltage gain and AC common mode rejection ratio. 实验结果表明该测试仪能准确测量运算放大器的输入失调电压、输入失调电流、交流差模开环电压增益和交流共模抑制比等参数。
In order to restrain effectively and to eliminate the self-sustaining oscillation caused by nonlinearity in longitudinal DFBW of an aircraft, adopted several methods in design of control law: reduced open loop gain, adding phase lead filter, conditional feedback correction and limited amplitude of oscillation. 为了有效地抑制和消除某飞机纵向DBW中非线性引起的自持振荡,在控制律设计中采取了降低系统开环增益、引入相位超前滤波、设置条件反馈校正和限制振荡幅值等措施。
The error of close loop gain of inverse proportion amplifier, which is caused by the influence of open loop input resistance of operation amplifier can be negligible when the open loop is by the gain of the operation amplifier. 证明当运算放大器的开环增益足够高时,在适当地选取比例运算放大器的输入端电阻和反馈电阻的条件下,运算放大器开环输入电阻对闭环反相比例放大运算精度的影响是可以忽略的。
On the Relation Between Power Source Rejection Ratio, Open Loop Voltage Gain and Common Mode Rejection Ratio of an Operational Amplifier 运算放大器电源电压抑制比、开环电压增益和共模抑制比的关系
The relative sensitivities of open and closed loop systems are studied vis-a-vis to typical electro-hydraulic servo position system and the relative sensitivity of the system with individual changes in parameters, such as feedback device, forward gain, load inertia is discussed quantitatively. Beneficial conclusions are obtained. 针对典型电液位置伺服系统,本文分析探讨了开、闭环系统的相对灵敏度问题,并就系统对反馈装置、前向增益、负载惯量等参数分别变化时的相对灵敏度作了定性的讨论。
The variable pump makes the open loop gain change and decrease, the tracking control accuracy is difficult to be achieved by traditional feedback control A/ O cascade control. Effective compensation to the change of open loop gain can be achieved with micro-controller and compound control methods. 变量泵源导致系统开环增益下降和动态变化,传统的反馈控制和串联校正很难使此类系统跟踪精度达到要求应用复合控制方法,可以对开环增益变化进行有效补偿,提高跟踪控制精度。
The Influence of Open Loop Gain Cofficient on Stability of the Feedback Control System 开环放大倍数对反馈控制系统稳定性的影响