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Meaning of "电动势" in the Chinese dictionary

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PRONUNCIATION OF 电动势 IN CHINESE

diàndòngshì
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WHAT DOES 电动势 MEAN IN CHINESE?

Click to see the original definition of «电动势» in the Chinese dictionary.
Click to see the automatic translation of the definition in English.
电动势

Electromotive force

電動勢

In circuit science, the electromotive force (English: electromotive force, abbreviated as emf) characterizes the characteristics of some electrical components that supply electrical energy. These circuit elements are called "electromotive force sources". Electrochemical cells, solar cells, fuel cells, thermoelectric devices, generators, etc., are electric potential. The energy supplied by the electromotive force source is the electromotive force per unit charge. Assuming that the charge moves through an electromotive force source, the energy is obtained, then the electromotive force of the element is defined as. In general, this energy is the work of separating the positive and negative charges. Since this positive and negative charge is separated into both ends of the element, the corresponding electric field and voltage difference occur. In electromagnetism, the electromotive force is divided into two types: "induced electromotive force" and "dynamic electromotive force". According to Faraday's law of induction, in the time-dependent magnetic field of the closed circuit, as the magnetic field changes over time, there will be induced electromotive force in the closed circuit. The induced electromotive force is equal to the path of the electric field along the closed circuit. Charged particles in the closed circuit will feel the electric field, resulting in current. ... 在電路學裏,電動勢(英语:electromotive force,縮寫為emf)表徵一些電路元件供應電能的特性。這些電路元件稱為「電動勢源」。電化電池、太陽能電池、燃料電池、熱電裝置、發電機等等,都是電動勢源。電動勢源所供應的能量每單位電荷是其電動勢。假設,電荷 移動經過一個電動勢源後,獲得了能量 ,則此元件的電動勢定义為 。通常,這能量是分離正負電荷所做的功,由於這正負電荷被分離至元件的兩端,會出現對應電場與電壓差。 在電磁學裏,電動勢又分為兩種:「感生電動勢」與「動生電動勢」。根據法拉第感應定律,處於含時磁場的閉電路,由於磁場隨著時間而改變,會有感生電動勢出現於閉電路。感生電動勢等於電場沿著閉電路的路徑積分。處於閉電路的帶電粒子會感受到電場,因而產生電流。...

Definition of 电动势 in the Chinese dictionary

The positive charge of the EMF unit moves along the loop for one week and is called the electromotive force of the power supply. When the power supply does not output current, the electromotive force of the power supply is equal to the potential difference between the two electrodes. The unit is volts. 电动势 单位正电荷沿回路移动一周所作的功,叫做电源的电动势。电源不输出电流时,电源的电动势等于两极间的电势差。单位是伏特。
Click to see the original definition of «电动势» in the Chinese dictionary.
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CHINESE WORDS THAT RHYME WITH 电动势


反电动势
fan dian dong shi
感应电动势
gan ying dian dong shi

CHINESE WORDS THAT BEGIN LIKE 电动势

灯泡
电动
电动按摩器
电动
电动剃须刀
度表
饭锅
饭煲
风扇

CHINESE WORDS THAT END LIKE 电动势

便
兵无常
并威偶
抱法处
查胡
比居同
车把

Synonyms and antonyms of 电动势 in the Chinese dictionary of synonyms

SYNONYMS

Translation of «电动势» into 25 languages

TRANSLATOR
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TRANSLATION OF 电动势

Find out the translation of 电动势 to 25 languages with our Chinese multilingual translator.
The translations of 电动势 from Chinese to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «电动势» in Chinese.

Chinese

电动势
1,325 millions of speakers

Translator Chinese - Spanish

fem
570 millions of speakers

Translator Chinese - English

Emf
510 millions of speakers

Translator Chinese - Hindi

ईएमएफ
380 millions of speakers
ar

Translator Chinese - Arabic

المجالات الكهرومغناطيسية
280 millions of speakers

Translator Chinese - Russian

ЭДС
278 millions of speakers

Translator Chinese - Portuguese

emf
270 millions of speakers

Translator Chinese - Bengali

তড়িচ্চালক বল
260 millions of speakers

Translator Chinese - French

Emf
220 millions of speakers

Translator Chinese - Malay

daya gerak elektrik
190 millions of speakers

Translator Chinese - German

EMK
180 millions of speakers

Translator Chinese - Japanese

EMF
130 millions of speakers

Translator Chinese - Korean

EMF
85 millions of speakers

Translator Chinese - Javanese

pasukan elektro
85 millions of speakers
vi

Translator Chinese - Vietnamese

emf
80 millions of speakers

Translator Chinese - Tamil

எலக்ட்ரோமோட்டிவ் படை
75 millions of speakers

Translator Chinese - Marathi

Electromotive शक्ती
75 millions of speakers

Translator Chinese - Turkish

elektrik hareket gücü
70 millions of speakers

Translator Chinese - Italian

emf
65 millions of speakers

Translator Chinese - Polish

EMF
50 millions of speakers

Translator Chinese - Ukrainian

ЕРС
40 millions of speakers

Translator Chinese - Romanian

emf
30 millions of speakers
el

Translator Chinese - Greek

EMF
15 millions of speakers
af

Translator Chinese - Afrikaans

emk
14 millions of speakers
sv

Translator Chinese - Swedish

emf
10 millions of speakers
no

Translator Chinese - Norwegian

emf
5 millions of speakers

Trends of use of 电动势

TRENDS

TENDENCIES OF USE OF THE TERM «电动势»

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The map shown above gives the frequency of use of the term «电动势» in the different countries.

FREQUENCY OF USE OF THE TERM «电动势» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «电动势» during the past 500 years. Its implementation is based on analysing how often the term «电动势» appears in digitalised printed sources in Chinese between the year 1500 and the present day.

Examples of use in the Chinese literature, quotes and news about 电动势

EXAMPLES

10 CHINESE BOOKS RELATING TO «电动势»

Discover the use of 电动势 in the following bibliographical selection. Books relating to 电动势 and brief extracts from same to provide context of its use in Chinese literature.
1
物理化学: - 第 60 页
三节可逆电池电动势的测量与计算电动势是电池最重要的参数,是电池做功本领的标志。其值是由电池的本性所决定的。电动势可以用仪器测量,如果知道电池中所有物质的精确状态,也可以从理论上计算电动势的值。一、电动势的测量可逆电池必须满足 ...
朱文涛, 1995
2
大学基础物理学 - 第 485 页
口此等式左侧是洛伦兹力的一个分力使电荷沿导线运动所做的功,宏观上就是感应电动势驱动电流的功。等式右侧是在同一时间内外力反抗洛伦兹力的另一个分力做的功,宏观上就是外力拉动导线做的功。洛伦兹力做功为零,实质上表示了能量的转换与 ...
张三慧, 2003
3
电机与拖动基础 - 第 5-34 页
线电动势与相电动势的关系为 EAe =一 Ea Eac =一 Ec EcA =一 É 。相量图如图 5.32 ( b )所示。这也是个位形图,可先画相电动势,再画线电动势。第二种三角形连接方式如图 5.34 ( a )所示,接线顺序是 AX — BY — CZ — AX 。线电动势与相电动势的 ...
李发海, ‎王岩, 2005
4
温度的测量与控制 - 第 60 页
姜忠良, 陈秀云. 章 4 第热电仍涣沉法 4 · 1 热电效应两种不同的导体或半导体 A 和 B 组成的闭合回路中,如果它们的两个接点的温度不同,则在回路中会产生电流,见图 4 - 1 。这说明此时回路中存在一个电动势,一般称其为热电动势。热电动势常被称为塞 ...
姜忠良, ‎陈秀云, 2005
5
天线与电波传播理论 - 第 76 页
这必然引起振子的辐射阻抗与输人阻抗的变化。此时天线阵中的每一根振子的阻抗由两部分组成:一部分是本身的自阻抗;另一部分是受其他振子影响的互阻抗。通常用感应电动势法求藕合振子的互阻抗。下面的推导将指出,用感应电动势法同样可以求自 ...
闻映红, 2007
6
机电控制工程 - 第 79 页
另一部分抵消电动机转动时电枢上产生的反电动势。根据电磁感应定律,当磁通山恒定时,单圈电枢绕组所感生的反电动势为 E 。二 d (山引 n 砂二山 co 如丝( 3 - 20 ) dtdf 由于实际的直流电动机具有多圈分布式电枢绕组,与电磁转矩一样,合成反电势的 ...
高钟毓, 2002
7
工程电磁场 - 第 99 页
给出达朗贝尔方程解的一般形式。讨论单元辐射子电磁波辐射的问题。最后,描述了在工程中两种简化条件下,时变电磁场的边值问题。应重点掌握感应电动势、位移电流的概念和时变电磁场的基本性质,理解电磁波传播的基本原理。学会区分远场(辐射场) ...
王泽忠, ‎全玉生, ‎卢斌先, 2004
8
民用建筑电气技术与设计 - 第 3 页
电位的单位也是伏特( V )。需要指出的是,电压有方向性·电压的方向总是规定为从高电位指向低电位。 3 ·电动鼻电动势是描述电源内部做功本领的物理量,如图 1 - 2 所示,电动势在数值上等于非静电力在电源内部将单位正电荷钉不断从其负极(低电位端) ...
胡国文, 2001
9
交流伺服运动控制系统 - 第 63 页
电动势的干扰以及 PI 电流调节器的影响 PMSM 定子电流的调节比转子更复杂、更困难、更重要,研究大多以前者为主而假定后者为理想控制情况。当不考虑 PWM 逆变器传输特性时,电流环可用图 3 - 17 所示的简化控制框图表示。在低速时,电流环 ...
舒志兵, 2006
10
地面氣象測報作業規範 - 第 6-6 页
如果一佃结之温度改燮,則兩電動勢就不再平衡,在迴路上產生淨電動勢'並產生電流。當有多個結時'合量電動勢為各個電動勢之代數和。任何一個結依據金屬型式與結點之溫度連接而造成接觸電動勢之數量及符號'任何兩金可由經驗式表示( ET 一 Es ) :6 ...
交通部中央氣象局, 2004

10 NEWS ITEMS WHICH INCLUDE THE TERM «电动势»

Find out what the national and international press are talking about and how the term 电动势 is used in the context of the following news items.
1
Microchip推出整合热电偶电动势
微芯科技(Microchip Technology Inc.)宣布推出首款热电偶调节晶片MCP9600,整合了精密仪表、一个精密温度感测器、一个高精度、高解析度类比数位转换器(ADC) ... «集微网, Sep 15»
2
一款单激式变压器开关电源的电路设计方案
当控制开关K接通的时候,直流输入电压Ui首先对变压器T的初级线圈N1 绕组供电,电流在变压器初级线圈N1绕组的两端会产生自感电动势e1;同时,通过互感M的 ... «北极星电力新闻网, Sep 15»
3
Microchip推出全球首个集成热电
Microchip推出全球首个集成热电偶电动势的温度转换器. 更多猛料?欢迎关注老杳个人微信号:laoyaoshow. 来源: 集微网 发布者:集微网. 热度7票 【共0条评论】【我要 ... «集微网, Sep 15»
4
电力急先锋:从特高压承受之“重”看发展机遇
只有在各发电机在同步运行的条件下,也就是电力系统稳定运行状态下,发电机发出的功率为定值,各发电机的电动势相量之间的相角差、发电机电动势与各母线电压 ... «北极星电力新闻网, Aug 15»
5
无传感器反电动势测量技术小家
透过设定永久磁铁的磁化方式和在转子上的分布,使得定子上的反电动势(BEMF)为梯形波(因转子运动而在定子绕组上产生的感应电压)。这允许使用矩形的三相电压 ... «集微网, Apr 15»
6
运用无传感器反电动势测量小家
透过设定永久磁铁的磁化方式和在转子上的分布,使得定子上的反电动势(BEMF)为梯形波(因转子运动而在定子绕组上产生的感应电压)。这允许使用矩形的三相电压 ... «集微网, Apr 15»
7
电动势已不可逆!上海车展的那些科技亮点
【PConline 汽车科技评论】晃晃悠悠这次没去成上海,所以只能坐在家里看展了,少了车模妹纸这件事是各媒体老湿们常挂嘴边的话题,但没有了车模妹纸其实是好事, ... «太平洋电脑网, Apr 15»
8
善用反动电势电压掌握转子方位
当转子经过某相时,转子上的永磁在该相感应出电流,进而产生称为反电动势(EMF)的电压。反电动势取决于每相绕组的匝数、转子的角速度以及转子永磁场的强度。 «集微网, Aug 14»
9
变频器漏电问题解决
我们都知道电动机的三相定子绕组流过电流产生旋转磁场,根据磁电感应的原理,电动机的外壳就会产生感应电动势,此电动势的大小就取决于变频器IGBT的开关频率 ... «光电新闻网, Jun 14»
10
专家深度点评2014年安徽理综试题
吕老师:2014年安徽高考物理试卷总体是一份成功的试卷,亮点较多,其中第23题:是电磁感应与力学的综合题,第(1)问求金属杆运动过程中产生的感应电动势容易让 ... «新浪网, Jun 14»

REFERENCE
« EDUCALINGO. 电动势 [online]. Available <https://educalingo.com/en/dic-zh/dian-dong-shi>. Dec 2024 ».
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