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- VFO? Variable Frequency Oscillator? 可变频率振荡器,变频振荡器?
- A new improved discrete variable voltage variable frequency equivalent sinusoidal control method is presented. 一种新的离散变压变频等效正弦控制方法被提出。
- A fault diagnosis method for variable frequency motor is presented, which is based on advanced MCSA and fuzzy inference. 提出一种基于改进的定子电流信号分析(MCSA)和模糊推理的变频电机转子故障诊断方法。
- This paper mainly introduces the starting method,and the starting torque,starting current and starting time (i.e.acceleration time) of the variable frequency adjustable speed induction motors. 主要介绍变频调速异步电动机的起动方式及涉及的起动转矩、起动电流和起动时间(或称加速时间 )。
- Abstract: In this paper, a method is described, in which a single-chip processor is used to control variable frequency speed regulationg equipment to locate the antenna of ground-based phased array radar. 文摘:主要阐述了运用单片机控制变频调速器实现地面相控阵雷达天线定位的方法。
- Method Electrical and heat conversion efficiency is improved through changing skin effect and power supply pattern in electrical heating with alternate-direct-alternate variable frequency. 方法采用交-直-交变频技术,改变集肤效应电加热供电方式;通过提高交流电频率加强集肤效应,提高电热转换效率。
- This paper introduces the principle and tested results of measuring nodulizing grade by audio frequency method. 介绍了音频法检测铸件球化级别的原理及试验结果。
- Frequency method and Bayesian method are the two main data mining algorithms used in pharmacovigilance nowadays. 目前各国普遍使用的数据挖掘方法主要有频数法与贝叶斯法。
- EAL-68 with small amount of additive is suitable for R407C in variable frequency rotary compressors of YZB-20R. EAL-68型POE润滑油加入少量添加剂可以作为R407C的YZB-20R型变频压缩机用油。
- The frequency inverters has a function of variable voltage and variable frequency. 频率逆变器具有变压、变频功能。
- Abstract : The two frequency method for measurring corrosion reaction resistance based on a. c. impedance and numerical integration has been proposed. 摘要 : 提出了基于交流阻抗和数值积分原理的二点频率法。
- Energy consumption of variable frequency drive pump are analyzed,and makes sugg estions about its suitable application. 详细分析了变频调速水泵的能耗,对如何合理应用变频调速水泵进行了探讨。
- An idea of design is provided for asynchronous m otor of variable frequency variable speed in this paper mainly. 本文主要为变频调速异步电动机的设计提供一条思路。
- Motor for deflector roll in entry side is requested to use AC variable frequency control. 卷取机卸卷小车行走电机采用交流变频调速控制。
- The results show that anomaly frequency method is effective for the analysis of high frequency information characteristics in digital subsurface fluid data. 结果表明,异常频次法是地下流体数字化资料高频信息特征分析及其应用的有效方法。
- Then the parameterand implement frame of variable frequency test system are dis cussed. 对变频试验系统的参数和实际组件进行了讨论。
- Based on the clump intensity index, regressive analysis method and zero frequency method, the spatial distribution pattern of Latori bicolor (Walker) larvae was studied. 应用聚集度指标法、回归分析法、零频率方法对两色绿刺蛾幼虫在毛竹林间的分布型进行测定。
- In this paper, a randomization sampling system with AC variable frequency technology, based on IP was introduced. 介绍一种以工控机为核心,利用交流变频调速技术实现的随机取样系统。
- To achieve the basic waveforms (sine, square, etc.) display, a variable frequency and amplitude control. 能够实现基本波形(正弦,方波等)的显示功能,有频率和幅度变量的控制。
- In this paper the ultrafine of attapulgite from Xuyi was studied by variable frequency planet-type grinding mill. 以盱眙产优质凹凸棒石粘土为研究对象,用变频式行星球磨机对其进行超细粉碎。