正常電流 的英文怎麼說
中文拼音 [zhēngchángdiànliú]
正常電流
英文
normal current- 正 : 正名詞(正月) the first month of the lunar year; the first moon
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 正常 : normal; regular; average
- 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
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The performance of the static inverter has become more and more important since it is a basilic part of secondary power source in airplane which ensures the electron devices to work normally
作為飛機二次電源重要組成部分之一的靜止變流器,是保證用電設備正常工作的基礎,其性能的重要性也越來越突出。The displacement current mechanism is operative only for capacitors under reverse bias or very weak forward bias conditions which maintain a space-charge layer.
位移電流的機理只對反向偏壓或要維持空間電荷層所需要的非常弱的正向偏壓條件下的電容器才有用。Along with the extensive use of power cable lines in power distribution system, the probability of fundamental frequency resonance has greatly increased
隨著配電網中電纜線路的大量使用,出現基波電流諧振的可能性大大增加,威脅系統的正常運行。Induction heated oil tempered spring wire is a kind of new technical material which has been developed since 1980s. it can be heated by means of eddy induced into itself through electromagnetic coil and this method is mainly used in surface quenching. with correct designing and reasonable current frequency, induction coil and heat treatment process selected, as well as plc controlling applied, the wire can be uniform heated along cross - sectional and longitudinal direction and can be quenched and tempered continuously
應加熱油淬火-回火彈簧鋼絲,是二十世紀八十年代發展起來的新技術材料,在國外稱為itw induction heat oil tempered spring wire 。是通過線圈電磁感應鋼絲本身產生的渦流進行加熱,通常主要用於表面淬火。經正確設計,選擇電流頻率,合理的感應線圈及熱處理工藝,並實施plc控制,可使鋼絲整個截面及長度上得到均勻加熱,進行連續整體淬火和回火。This paper theoretically analyses the armature current and magnetomotive force in ac exciter of brushless synchronous machine with rotating rectifier. under the normal or fault conditions of rotating rectifier, the mathematical expressions of the armature current, the m. m. f and induced electromotive force are approached
本文通過對旋轉整流器在正常與故障狀態下的交流勵磁機電樞電流和電樞電勢作了初步的理論分析,推導出旋轉整流器在正常與故障狀態下電樞電流、空間諧波合成磁勢及其感應電勢的數學表達式。It is necessary to control the mechanical stimuli precisely in the studies of cardiac mechano - electrical feedback ( mef ). in the present study a ventricular pressure - clamping system has been developed, which can be applied to isolated - perfused rabbit hearts. controlled by a computer, this system not only can make the left ventricle follow a command defining the same pressure wave as that during a beating cycle under physiological condition, but also deliver mechanical stimuli with a proper waveform to the ventricle at a particular time phase. this system integrates multiple functions, including perfusing, pacing, recording of electrocardiogram and monophasic action potentials, and clamping and measuring of ventricular pressures in isolated - perfused hearts. thus, it is a distinct system for investigating the phenomena and mechanisms of cardiac mef at organ level
在心臟機械電反饋的研究中準確控制機械刺激是非常重要的.本研究室構建了一套適用於離體家兔心臟的心室壓力鉗系統.該系統通過計算機控制壓力鉗,不僅能模擬正常生理條件下左心室的壓力波形,還能在心室活動周期的特定時相、以適當波形對心室施加機械刺激.該系統集心臟灌流與起搏、表面心電圖記錄、單相動作電位記錄、心室壓力鉗制與測定等多種功能於一體,特別適用於器官水平上觀察機械電反饋現象並探討其機制Abstract : it is necessary to control the mechanical stimuli precisely in the studies of cardiac mechano - electrical feedback ( mef ). in the present study a ventricular pressure - clamping system has been developed, which can be applied to isolated - perfused rabbit hearts. controlled by a computer, this system not only can make the left ventricle follow a command defining the same pressure wave as that during a beating cycle under physiological condition, but also deliver mechanical stimuli with a proper waveform to the ventricle at a particular time phase. this system integrates multiple functions, including perfusing, pacing, recording of electrocardiogram and monophasic action potentials, and clamping and measuring of ventricular pressures in isolated - perfused hearts. thus, it is a distinct system for investigating the phenomena and mechanisms of cardiac mef at organ level
文摘:在心臟機械電反饋的研究中準確控制機械刺激是非常重要的.本研究室構建了一套適用於離體家兔心臟的心室壓力鉗系統.該系統通過計算機控制壓力鉗,不僅能模擬正常生理條件下左心室的壓力波形,還能在心室活動周期的特定時相、以適當波形對心室施加機械刺激.該系統集心臟灌流與起搏、表面心電圖記錄、單相動作電位記錄、心室壓力鉗制與測定等多種功能於一體,特別適用於器官水平上觀察機械電反饋現象並探討其機制In order to examine the south motorcycle engine preignition phenomenon, using the rich burning information of the massive ions which are produced when the air cylinder is burnt, through analyzing the wave form difference between lighting a fire normally and firing early, it can be determined whether preignition occurs or not
為了檢測南方摩托車發動機早燃現象,利用其氣缸內燃燒時產生大量的離子電流信號所包含的豐富燃燒信息,對其火花塞正常點火和熾熱點火離子電流顯示的波形進行研究分析,從而確定是否發生早燃。The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation
二、在高頻變壓器原邊,當開關管接收控制信號脈沖列(經調制的spwm波列)導通時,在低頻調制信號的正半周或負半周內,施加在變壓器繞組上的是同一方向的電壓,變壓器磁芯中的磁通可能將級進地逐漸增加,導致磁芯飽和,造成磁偏或單向磁化,導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。It can open and shut and bear the normal electric current of the operating return circuit. it also can open and shut and bear the limited overload electric current within stipulated time
它能關合、承載、開斷運行迴路正常電流,也能在規定時間內關合、承載及開斷規定的過載電流。It shows that the injection quantity and the difference of temperature distribute as a parabola which is at the same load, and the minimum of the parabola corresponds to the optimum quantity of injection ( g ). under the condition that the quantity of injected mass, the air speed and the heat quantity is respectively g, v and q, the research demonstrates that the pentium iv chip ' s temperature variation can be controlled under 40c and work normally when the wind speed overpass 1. 5m / s and the power dissipation of the chip is 60w. otherwise this paper calculates the flooding limit of thermosiphon with several different methods
對其充灌量、散熱量、電子元件( cpu模擬晶元)表面與環境溫度之差及通風、流速的影響進行了系統的測試,發現充液量與溫差的關系在負荷不變時呈拋物線分佈,其極小值點對應的充液量是最佳充液量g 。在充液量為g時,對風速v 、散熱量q進行的研究表明,當風速超過1 . 5m / s后,奔騰晶元在60w發熱條件下晶元溫度小於40 ,能滿足長期正常工作。A common mistake and its harm in ct secondary connection of transformer differential protection were analyzed, the correct connection mode was explaned, and how to use the hexagon vector diagram of checking was introduced
摘要分析了一種常見的變壓器縱差保護電流互感器錯誤接線及其危害,說明了正確接線方式,並介紹了如何通過作六角圖來檢查縱差保護二次接線的正誤。Among the many testing methods of analog and mixed signal circuits booming up in recent years, the pseudorandom testing technique is easier to generate testing stimuli and the current - based testing method could magnify the response differences between fault - free circuits and faulty circuits
近年來提出的很多種模擬及混合信號電路測試方法中,偽隨機測試法易於產生測試激勵,基於電流的測試法能使正常電路和故障電路的頻率響應的差別增大。With the development of modern industry, the nonlinear loads of power system are greatly increased. they absorb the non - sine current waves from power network and result in voltage aberrance. voltage aberrance makes the power quality severely deteriorate, endangers the safe and economical running of power system and affects some users ’ s normal work
隨著現代工業的發展,電力系統中的非線性負荷大量增加,這些非線性負荷從電網吸收非正弦電流,導致電網電壓發生畸變,使電能質量嚴重惡化,危及電力系統安全和經濟運行,影響了用戶的正常工作。It can turn on, bear and break normal current in circuit, but also bear and break the overloaded current within stipulated time
它能關合、承載、開斷運行迴路正常電流,也能在規定時間內關合、承載及開斷規定的過載電流。In this design, the protection in short circuit failure and the measurement in normal condition are both fulfilled. it can also communicate with the computer through the communicating interface, sending the parameter of the system current and accepting the instruction
該傳感器具有正常電流的測量和短路故障時的保護功能,並且預留了與上位機的通訊介面,接受上位機的指令並向上傳送電網的電流參數。According to the actuality of the present research on ct, we bring forward a new design scheme based on the rogowski coil, in this design, the protection in short circuit failure and the measurement in normal condition are both fulfilled. it can also communicate with the computer through the communicating interface, sending the parameter of the system current and accepting the instruction
本文在考察了國內外電流互感器發展現狀的基礎上,提出了一種基於rogowski線圈的電流互感器,該互感器具有正常電流的測量和短路故障時的保護功能,並且預留了與上位機的通訊介面,接受上位機的指令並向上傳送電網的電流參數。Fault a fault is any unintended flow of current outside its intended circuit path in an electrical system
故障故障是指在電力系統中任何電流跑出正常電路以外的情況。Flow meters may be affected, giving incorrect reading. the rate of corrosion of pipeline may also increase. the abnormal current induced in power grids may damage transformers because of overheating
流量計可能會受到干擾,使數據失誤管道的腐蝕速度亦可能會增快電力網路上的不正常電流可能使變壓器因過熱而燒毀。By this method, the precision of the measurement is improved. in this paper, both the hardware and the software are designed according to the demand of the system. at last, the ct developed in this paper worked well through the experimental test
結合正常電流測量和短路保護的要求,本文設計並實際製作了硬體電路,為單片機系統編制了功能軟體,最後通過整體的實驗測試,其結果滿足對電網電流的測量和短路保護的要求。分享友人