FLL Frequency Locked Loop是什么意思

网络释义

用法例句

The principle of frequency lock loop includes delay line discriminator and it is the characteristic of the low noise,and broad band has been introduced in detail in this article.

本文介绍一种高性能快速跳频合成信号发生器,利用锁相环路和锁频环路相结合的原理和跳频校准控制技术而实现的。

In addition, a new type of vibro impact motion, which exhibited some property of frequency locking, was found.

此外，发现系统存在类似“频率锁定”性质的碰撞振动，以及同时存在性质相异的碰撞行为，如谐碰撞与混沌振动共存现

A freequency lock-in instrument is described and the experiments using this instru－ment are reported．By our experiments，frequency lock-in process and phenomenon are observed di－rectly.

该实验不仅对频率锁定这个普遍存在而又不易理解的现象有一直观的了解，而且改进了原利萨如实验，使图象稳定、实验容易且所用设备简单。

With this equation, the vortex-induced vibration response of “frequency lock” in existing grating is calculated, in which the cause of fracture damage is derived, and the dynamic vortex-induced response of the optimized grating is predicted.

对现有格栅结构进行了“频率锁定”涡激振动响应计算,分析了其断裂破坏原因;并对设计部门提出的改进格栅结构进行了涡激动态响应预报。

Modulation-Free Laser Frequency Locking by AOM Shifted Cesium Sub-Doppler Spectra

声光偏频亚多普勒光谱无调制激光频率锁定

The experimental results were satisfactory, the beat frequency stability was 1.27×10 -7 (Allen variance).

实验频率锁定结果良好 ,频率稳定度为 1 2 7× 10 -7(阿仑方差 )。

The major advantage of the proposedDPPL is that it has a very high lock-in speed. If a rectangular signalis switched on to the loop,it will lock-in with the frequency of thesignal within one and a half cycles.

其特点是:一是,具较快的锁定速度,可在一拍半内实现频率锁定;

"FLOCK button. Pressing the Frequency Lock button will disable all frequency determining controls on the front panel, to prevent accidental changes of frequency."

按下频率锁定按钮前面板所有频率控制按钮将被禁用,防止意外改变频率。

FLOCK button. Pressing the Frequency Lock button will disable all frequency determining controls on the front panel, to prevent accidental changes of frequency.

频率锁定，按下这个按钮前面板所有频率控制按钮将被禁用，防止意外改变频率。

Modulation-Free Laser Frequency Locking by AOM Based on Molecular Absorption Line of CH_4

基于甲烷分子吸收线的声光偏频无调制激光频率锁定

External Optical Cavity Locked by Laser Frequency

激光锁定F-P腔频率的有差锁定研究

Research of Fast Lock-in RF PLL Frequency Synthesizers;

宽带锁相式频率合成器快速锁定模式研究

Intelligence frequency search and trace.

智能搜索波形，锁定和跟踪频率。

A Low Phase Noise Ka Band PLL Source with High Stability

高稳定低相噪Ka波段锁相频率源设计

Design of L-Band Low Phase Noise,Fast Settling PLL Frequency Synthesizer

L波段低相噪、快锁定频率合成器研制

Long-Term Frequency Stabilization with Digital Servo System

数字伺服系统实现激光器频率长期锁定

Simulation shows that both CW and CCW waves can be locked at the resonance frequency of the resonator quickly by frequency feedback operation.

仿真结果表明 ,多次反馈频率操作 ,可以较快地锁定到谐振点

K Band Frequency Synthesizer with High Stability and Its Application;

高稳定K波段锁相频率合成器关键技术及其应用

Analysis and Application Design of RF PLL Frequency Synthesizer;

射频锁相环频率合成器的分析与设计

Study of Fractional-N Digital Phase Locked Loop Frequency Synthesizer;

分数分频数字锁相频率合成器的研究

A PLL Frequency Synthesizer with High Multiple-Frequency

一种多倍频选择的高倍频锁相环频率合成器

The relationships between the EOM crystal temperature and the RAM,as well as stabilized laser frequency are observed.

观测了电光晶体温度与剩余幅度调制和光频标锁定后激光频率之间的变化关系。