To tackle this problem , a novel methodology is proposed to suppress the vibration of the spindle by means of chatter frequency identification and on - line regulation of spindle speed 为此,本文采用辨识颤振频率和主轴转速在线调节的方法,与磁轴承控制相结合抑制主轴振动,取得良好效果。
Switch mode power supply , with its compact volume , small weight , high efficiency and good line regulation , has been widely applied in most of electronic fields 开关电源( switchmodepowersupply )由于具有体积小、重量轻、效率高、输出稳压范围宽等优势,被应用于各种电子、电器设备领域。
Based on the multiple - targets control strategy , utilizing the properties of self - adapting and simpleness of nerve cell , multiple - targets neural control strategy is brought forward , which facilitates the on - line regulation of controller ' s parameter . the simulation indicates this control strategy has remarkable self - adaptability and robustness character . a strategy of on - line optimization based on genetic algorithms ( ga ) , which utilizes 针对多目标神经网络控制器参数的选取,利用遗传算法( ga )的全局收敛性,提出了基于遗传算法的多目标神经网络控制器参数的在线优化,避免了采用bp算法时的局部收敛等问题。
But often what is not obvious when reading a manufacturer ' s data sheet is how the initial accuracy of the device is affected by other key device parameters such as line regulation , load regulation , initial voltage error , output voltage temperature coefficient ( tc ) , output voltage noise , turn - on settling time , thermal hyste - resis , quiescent supply current , and long - term stability 但,人们阅读厂家的数据手册时,因受诸如(电源电压)线性调整率、负载调整率、初始电压误差、输出电压温度系数tc 、热迟滞(系数) 、静态电流和长期稳定度等参数的影响而使初始精度往往不明显。
Line regulation is the capability to maintain a constant output voltage level on the output channel of a power supply despite changes to the input voltage level. Line regulation is expressed as percent of change in the output voltage relative to the change in the input line voltage.