An electron tube used to amplify or generate ultrahigh frequency by means of velocity modulation.
速调管一种用速度调节的方法放大或产生超高频率的电子管。
The frequency conversion velocity modulation technique is widely applied in various industries with large economic benefit, especially in pumps system control.
变频调速技术已在各行业得到日益广泛的应用，尤其在泵类系统的控制中显示出很大的经济效益。
This article mainly discusses the designations of three-phase BLDCM velocity modulation systems hardware.
本文主要论述三相直流无刷电机调速系统的硬件设计方法。
The IPM is driven in the same way, and the SVPWM space vector algorithm is adopted by velocity modulation algorithm.
其通过同相接法驱动IPM，调速算法则采用SVPWM空间矢量算法。
The paper discusses and probes into the application of adaptive control in mine hoist direct-current velocity modulation system.
本文对自适应控制在矿井提升机直流调速系统中的应用进行了研究和探讨。
The fuzzy control already has obtained the satisfactory effect in the alternating and direct velocity modulation system and the servo system.
模糊控制已在交直流调速系统和伺服系统中取得了满意的效果。
Based on the mathematic model of separately excited DC motor, the control structure of the single - feedback-closed-loop controlled DC velocity modulation system was obtained.
在他励直流电机的数学模型的基础上，得到了单反馈闭环控制的直流调速系统的结构。
Optical heterodyne magnetic rotation enhanced velocity modulation spectroscopy (OH-MR-VMS) is an absorption spectroscopic technique for selective detection of the molecular ions.
光外差磁旋转速度调制光谱技术是一种对离子分子选择性测量的高灵敏激光吸收光谱技术。
This paper introduces the application of the programmable controller, the direct current velocity modulation system, the frequency inverter and the electronic CAM switch in chamfering machine.
介绍可编程控制器、直流调速系统、变频器、电子凸轮开关在倒棱机中的应用。
The working principle and performance characteristic of asynchronous motor cascade velocity modulation are analyzed, and the inner feedback cascade velocity modulation is introduced systematically.
分析了异步电动机串级调速的工作原理与性能特点，介绍了内反馈串级调速电机及其装置的系统结构。
The working principle and performance characteristic of asynchronous motor cascade velocity modulation are analyzed, and the inner feedback cascade velocity modulation is introduced systematically.
分析了异步电动机串级调速的工作原理与性能特点，介绍了内反馈串级调速电机及其装置的系统结构。
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