medium frequency

Sub harmonic SPWM modulation is often used for medium frequency inverters.

常用的中频逆变器通常采用传统的SPWM调制策略.

The paper proposes a design of the medium frequency power of which power output heating temperature.

提出了输出功率和加热温度可控的中频感应加热电源的设计方案.

Changing the drive of timing mechanism from timing gear to notched belt can greatly reduce the high and medium frequency ( higher than 500 Hz) radiated noise at front measuring point of the engine.

而将正时机构由正时齿轮传动改为同步齿形带传动，可以大大改善前端测点的500Hz以上中、高频辐射噪声。

Observation of effect on treating varicella-zoster with undamped medium frequency sinusoidal current therapy and infrared rays

等幅中频正弦电疗加红外线治疗带状疱疹的疗效观察

Technical Research of Fuse Welding by Medium Frequency for Sliding Valve at Mine Transmitting Device

雷弹发射装置滑套阀中频熔焊工艺研究

Trial and Analysis on composition control of alloyed tool steel and die steel and alloying element loss in refining by medium frequency induction furnace

中频感应炉冶炼合金工模具钢的成分控制和合金元素烧损探析

The results showed that tempered soft zone in harden zone case produced in process of discontinuous medium frequency induction hardening which has microstructure of tempered sorbite and low hardness and low fatigue limit were major reason to cause driven gear cracking.

结果表明，因中频淬火的不连续，使淬硬层出现了回火软区，组织为回火索氏体，降低了材料的硬度和疲劳极限，最终导致从动齿轮开裂。

For the control action it's an adaptive PID controller without any phase lag, but there is an amplifier in the high frequency, an integrator in the low frequency, and a PID only in the medium frequency.

对控制信号而言，它是一个没有任何相位落后的PID控制器，R高频为一放大器，低频为积分器，中频段为PID。

The method improving the property of the front medium frequency amplifier was proposed based on experiments.

通过实验得出了改善前置中频放大器性能的方法.

The property of the front medium frequency amplifier influences directly the technical targets of the machine.

通信机中的收信前置中频放大器,其性能的高低将直接影响整机技术指标.

An Inverting Trigger Circuit for Thyristor Medium Frequency Power Supply with Phase locked Circuit

用锁相环作晶闸管中频电源的逆变触发电路

Characteristics and Application of the Medium Frequency Tension Temper Set

集合（英文）张力中频回火机组的特点与应用试论审美张力

Rectangular wave exported by medium frequency power supply is matched load by a export network.

中频电源输出40kHz对称矩形波，通过输出网络与负载匹配。

The practice proves that it could improve characteristic of dynamic average voltage for multi-thyristors in series and ensure the native fast thyristors' stabilization which is applied in medium frequency power supply.

实践证明，该技术可改善多个串联快速晶闸管的动态均压特性，能有效地保证国产快速晶闸管在中频电源中的稳定运行。

Cause of Grinding Cracks on Medium Frequency Induction Hardened Cam Shaft and Countermeasure

中频淬火凸轮轴磨削裂纹产生原因及对策

Medium frequency transformer quenching is used for workpiece diathermy, quenching, annealing, brazing, etc.

中频淬火变压器用于工件的透热 、 淬火 、 退火 、 弯管钎焊等工艺.

The medium-frequency induction furnace melting process of the synthetic as-cast ferrite nodular cast iron was described.

概述用中频感应电炉熔炼合成铸态铁素体球铁的生产工艺.

This study was designed to monitor localized muscular fatigue with the power spectrum medium frequency of surface myoelectric signal, and test the muscular fatigue of body bices.

通过表面肌电信号的功率谱中值频率（f＿（med））来监测局部肌肉疲劳，对人体的肱二头肌做了疲劳实验。

The viscoelasticity of a medium makes seismic wave have a constant phase delay when upper-limit frequency of the data is not high.

在资料的上限频率不高时，介质的黏滞性将导致地震波发生一个常数的相位延迟。

Research of Start Circuit for Thyristor Medium Frequency Power Supply

晶闸管中频电源起动电路的研究

Thyristor Medium Frequency Power Supply by Means Microcomputer Control System

微机控制的晶闸管中频电源

Medium-frequency power supply has been widely used in industrial heating.

中频电源已广泛应用于工业加热领域.

A Study on Increasing Induction Frequency of Pollen Plants by Culture with a Thin Liquid Layer on Solidified Medium

固体培养基上浸润培养提高花粉植株诱导率的研究

The appearance of the medium-frequency through quenching and the corresponding quenching machine has a great significance to improve the technology of heat treatment in china.

中频穿透淬火工艺及相应的淬火机床的问世，对改善和提高我国的热处理工艺和设备水平有一定意义。

Frequency Selection of Medium Frequency Melting and Holding Furnace and Power Calculation

中频感应熔炼炉与保温炉的电源频率选择及功率计算

KEYWORDS: GIMS, ion source, anode layer, sputtering, TiN, ion plating, medium frequency, pulsed DC.

中文关键词: 气离溅射 、 离子源 、 阳极层流 、 溅射 、 氮化钛 、 离子镀膜 、 中频 、 脉冲直流.

Natural Frequency Formulas for Underground Structures with Consideration of Infinite Space Effect of Rock Medium

计入岩土介质无限空间效应的地下结构自振特性计算公式

The heat-treatment technology with medium frequency induction heating for driving wheel of crawler tractor is analyzed, and proved being feasible through technical test, data analyzing and trial installation.

摘要本文分析了履带拖拉机驱动轮中频感应加热的热处理工艺，从工艺试验、数据分析和装机试验几个方面验证了该工艺的可行性。

Reformation of the Thyristor Medium Frequency Power Supply in the GW 0 5 t Coreless Induction Furnace

GW-0.5t无芯感应熔炼炉可控硅中频电源改造

While hunting on the 3 seabed they emitted a 4 ) weird 5 ) medium frequency noise.

在海底猎食时,们发出一种奇怪的中频率杂音.