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- optical frequency converter 光频变换器
- VFC? Voltage to Frequency Converter? 电压频率变换器?
- Purpose: UHF frequency converter, local oscillator，wide band am plifier. 用途:用于超高频频率转换,负载振荡器,宽频放大。
- Programmable controller, man-machine interface and frequency converter are of Japanese "Mitsubishi" brand. 可编程控制器、人机界面、变频器采用进口产品。
- The testing system was mainly composed of PLC, MMI, frequency converter, approach switch and acceleration transducer. 并通过plc、MI、频器、近开关、速度传感器等组成的控制系统完成了对零部件的振动试验。
- Passively mode-locked fiber laser and the application in optical frequency metrology were introduced. 摘要本文介绍被动锁模光纤激光的架构，以及在光频量测的应用。
- Bear the function of spare unit but consume you less investment when compared with frequency converter. 相比变频,多了备用机的功能,投资反而更少了。
- Cost you less than frequency converter but save you more energy in a certain range. 比变频的投资更少,在部分范围更节能。
- The switchgear cabinets for this crane series feature frequency converter technology. 此系列起重机的开关箱采用变频器技术。
- Two additional features of the pulses emitted by mode-locked lasers are keys to the development of optical frequency combs. 锁模雷射所放出的脉冲另有两个特徵，成为发展光频梳的关键。
- This paper describes a Static Phase Advancer using thyristor AC-AC frequency converter which is designed for asynchronous induction motor. 介绍了一种由可控硅构成的交交变频器为主要结构的异步电动机静止进相器。
- Jun Ye, Steven Cundiff and John Hall bring different backgrounds to their collaboration on developing and applying femtosecond optical frequency combs. 叶军、康帝夫以及霍尔各有不同的背景，但是一起合作发展及应用飞秒光频梳。
- The New Techniques Development of High Voltage High Power Frequency Converter of ABB Co. ABB高压大功率变频器的最新技术发展
- Steven Cundiff, Jun Ye and John Hall bring different backgrounds to their collaboration on developing and applying femtosecond optical frequency combs. 康帝夫、叶军以及霍尔各有不同的背景，但是一起合作发展及应用飞秒光频梳。
- John Hall, Steven Cundiff and Jun Ye bring different backgrounds to their collaboration on developing and applying femtosecond optical frequency combs. 霍尔、康帝夫以及叶军各有不同的背景，但是一起合作发展及应用飞秒光频梳。
- Adopt multi-function digital-indication frequency converter, and stepless variable speed. 采用多功能数显变频器，无级变速；
- Man-machine interface, programmable controller, tem-controller and frequency converter are of import brand. 人机界面、可编程控制器、温控模块、变频器采用进口产品。
- The microcontroller then sets the frequency driving AOM to let the shifted optical frequency to jump alternatively to either side of the desired saturated absorption peak. 单片机控制AOM在吸收峰左右跳频得到鉴频信号，经数字PID计算反馈控制激光频率，实现了无调制稳频。
- This new crane has the new FR. Tronic, with continuous speed control of the various motors using a static frequency converter, as standard equipment. 此新型起重机配备新型FR.;tronic;作为标准配置;安装有一个使用静止变频器的马达转速连续控制器。
- The optical temporal and the optical frequency holograph are introduced in this paper, emphasis on the principle of the optical frequency holograph, and its application. 介绍了光学频域全息和时域全息的形成原理,并对光学频域全息在光纤通信及图像传输中的应用作了简要介绍。
