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- VFO? Variable Frequency Oscillator? 可變頻率振蕩器，變頻振蕩器?
- A new improved discrete variable voltage variable frequency equivalent sinusoidal control method is presented. 一種新的離散變壓變頻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. 提出一種基于改進(jìn)的定子電流信號分析(MCSA)和模糊推理的變頻電機轉子故障診斷方法。
- 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. 主要介紹變頻調速異步電動(dòng)機的起動(dòng)方式及涉及的起動(dòng)轉矩、起動(dòng)電流和起動(dòng)時(shí)間(或稱(chēng)加速時(shí)間 )。
- 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:主要闡述了運用單片機控制變頻調速器實(shí)現地面相控陣雷達天線(xiàn)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-交變頻技術(shù),改變集膚效應電加熱供電方式;通過(guò)提高交流電頻率加強集膚效應,提高電熱轉換效率。
- This paper introduces the principle and tested results of measuring nodulizing grade by audio frequency method. 介紹了音頻法檢測鑄件球化級別的原理及試驗結果。
- Frequency method and Bayesian method are the two main data mining algorithms used in pharmacovigilance nowadays. 目前各國普遍使用的數據挖掘方法主要有頻數法與貝葉斯法。
- EAL-68 with small amount of additive is suitable for R407C in variable frequency rotary compressors of YZB-20R. EAL-68型POE潤滑油加入少量添加劑可以作為R407C的YZB-20R型變頻壓縮機用油。
- The frequency inverters has a function of variable voltage and variable frequency. 頻率逆變器具有變壓、變頻功能。
- 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數值積分原理的二點(diǎn)頻率法。
- Energy consumption of variable frequency drive pump are analyzed,and makes sugg estions about its suitable application. 詳細分析了變頻調速水泵的能耗，對如何合理應用變頻調速水泵進(jìn)行了探討。
- An idea of design is provided for asynchronous m otor of variable frequency variable speed in this paper mainly. 本文主要為變頻調速異步電動(dòng)機的設計提供一條思路。
- Motor for deflector roll in entry side is requested to use AC variable frequency control. 卷取機卸卷小車(chē)行走電機采用交流變頻調速控制。
- The results show that anomaly frequency method is effective for the analysis of high frequency information characteristics in digital subsurface fluid data. 結果表明，異常頻次法是地下流體數字化資料高頻信息特征分析及其應用的有效方法。
- Then the parameterand implement frame of variable frequency test system are dis cussed. 對變頻試驗系統的參數和實(shí)際組件進(jìn)行了討論。
- Based on the clump intensity index, regressive analysis method and zero frequency method, the spatial distribution pattern of Latori bicolor (Walker) larvae was studied. 應用聚集度指標法、回歸分析法、零頻率方法對兩色綠刺蛾幼蟲(chóng)在毛竹林間的分布型進(jìn)行測定。
- In this paper, a randomization sampling system with AC variable frequency technology, based on IP was introduced. 介紹一種以工控機為核心,利用交流變頻調速技術(shù)實(shí)現的隨機取樣系統。
- To achieve the basic waveforms (sine, square, etc.) display, a variable frequency and amplitude control. 能夠實(shí)現基本波形（正弦，方波等）的顯示功能，有頻率和幅度變量的控制。
- In this paper the ultrafine of attapulgite from Xuyi was studied by variable frequency planet-type grinding mill. 以盱眙產(chǎn)優(yōu)質(zhì)凹凸棒石粘土為研究對象,用變頻式行星球磨機對其進(jìn)行超細粉碎。
