frequency modulation mode locking

The research of frequency modulation system of the medium frequency generator;

中频发电机调频系统研究

Research on continuous frequency modulation of semiconductor laser by varying the length of external cavity;

半导体激光器外腔长连续调频特性的研究

Research on Rotor-bearings System Nonlinear Dynamics Behaviors, Fluid-solid Interaction and Its Frequency Modulations;

轴承—转子系统非线性动力学行为及其耦合调频技术研究

Simulation and Analysis of Nonlinear FM Output Function of AD9854;

AD9854非线性调频输出功能的仿真与分析

The Development of FM Transmitter Based on PLL;

锁相环调频发射机的研制

A low frequency high power FM scanning acoustic beam transmitting system;

一种低频大功率调频声波束扫描发射系统

Electromagnetic Oven Control System Based on the Frequency Regulation Mode;

基于调频方式电磁炉的控制系统

The frequency regulation has been modified;The "press deviation dragging load"loop has been designed in order to limit the response speed of turbine valve;The direct Energy Balance(DEB) strategy has been replaced by Indirect Energy Balance(IEB) strategy;Fuel feedforward has been used to compensate the time delay of the CFB boiler.

在分析河北省保定热电厂原协调控制策略的基础上提出了改进措施:完善了一次调频功能;设计了汽机侧的“压力偏差回拉功率”回路,以限制汽机侧调门的动作速率;将直接能量平衡策略改为间接能量平衡策略;为克服锅炉燃料调节的滞后性使用了燃料前馈。

When the generator primary frequency regulation of system is at low level,severe accident may cause power system collapse if it is not treated properly and timely.

当系统发电机整体一次调频(PFR)水平较低时,如遭遇严重事故而不及时进行控制,将导致频率崩溃、系统瓦解。