當前位置: 首頁 » 知道 » 電力知道 » 正文

誰發一下電量和電子元件的測量的中英對照

已解決 懸賞分:0 - 解決時間 2011-09-11 13:14
2321 次關注     提問者: 匿名  
  支持(0)  |   反對(0) 最佳答案
Measurement Of Electrical Quantities and Components 電量和電子元件的測量 Electrical parameters 電參數 Most measurements made on electronic equipment are the parameters of voltage, current, and power. These measurements are usually made during the final product testing phase or incoming testing before the equipment is placed in day-to-day use and Of course during system diagnostic and maintenance stages. Verification of proper operating voltages, current, and power indicate that at least the system has an operational power supply and that power regulation circuits are operating correctly. Oftentimes the main problem with many electronic systems is a poor or defective power supply and by monitoring the power supply electrical parameters, a power supply failure and system outage can be avoided. 對大多數電子設備而言需要測量的是電壓,電流,和功率。這些測量通常在產品測試階段進行,或者在產品即將被日夜使用之前來進行,當然也在系統作診斷和維修期間進行。如果證實操作電壓,電流,功率是正常的,那么表明系統至少有一個可供系統運行的能量供應,也表明能量的調節電路是正常運行的。就常規來說,有許多電子的系統的主要的問題是有著不良的或者是有缺陷的能量供但是通過監控能量供應的電子參數,供電失誤和系統 停止的情況是可以避免的。 Voltage 電壓 One of the easiest measurements to make on a system is voltage. Voltage can be measured using a variety of methods. Instruments used in today’s electronic industry consist of various types of voltmeters with accuracies form 5 percent of full scale to nearly 0.002 percent of reading. Many multimeters used today still use the magnetoelectric meter movement as an indicating device. Many people still feel that a meter showing small flickering changes is easier to read than a digital meter on which you try to read flashing digits. The digital voltmeter has to be powered with a power supply or batteries, while the magnetoelectric type meter only needs a battery in the ohms mode. 在一個系統中,以上最容易測量的就是電壓。電壓測量可以使用許多方法。當今在電子業使用的測量儀器包括各種各樣的電壓表,精度從滿刻度盤的5%到接近讀數的0.002%。今天使用的許多萬用表仍在利用電磁表頭的運動來作為指示刻度之用。許多人仍然感到在顯示出微小搖曳變化的儀表讀數比在數字表上竭力去讀閃爍的數字更容易。數字式伏特計必須供以能量或者以電池組為動力,而磁電式儀表僅僅在歐姆表里需要一節電池。 It must also be remembered that any voltmeter is a high-impedance device and that an ideal voltmeter draws no current from the circuit being tested. Modern digital voltmeters have input resistances that range from 10 megohms to nearly 10,000 megohms. Also in the AC voltage mode, low-input shunting capacity is necessary for high-frequency operation. The voltmeter is always connected across a circuit or component and one terminal of the voltmeter is always marked either-or common and is usually colored black with a black connecting wire and probe. The other terminal is usually marked + and has a red wire and probe. Some high-frequency AC voltmeters have special hot or + marks on the cables and probes. 我們需要記住的是任何伏特計都是一臺高阻抗設備并且一個理想的伏特計是不從被測試的電路分出電流的,F代化的數字伏特計有從10兆歐到10,000兆歐的輸入電阻。在AC(交流)電壓模式中,低輸入的分流容量對高頻率的操作運行是必要的。電壓表總是跨接電路或者元件的,電壓表的一個端口也總是被標記為兩用式或公用而且以黑色標記出相連的電線和探頭,而另一端通常標以+和伸出紅色的線和探頭。一些高頻交流電壓儀有特殊的突出的標記或者+號在線纜和和探頭上。 DC voltage measurements 直流電壓大小 Solid-state devices are always powered by direct currents and voltages . Vacuum tubes require DC voltage sources as well. Thus many measuremtents are made in the DC mode. Many systems today have built-in diagnostic meters so that power supply parmeters can be monitored and logged. 固體狀態設備總是以直流和電壓為動力。真空電子管也要求以直流電壓為電源。這樣許多測量是采用直流模式的。許多系統現在都內裝診斷儀以便電能供應參數能被監測和記錄。 Accuracies of a typical DC bench-type digital multimeter can be as good as 0.002 percent (1 count of reading for a 6 1/2 digit instrument). This accuracy is often available on the lower voltage ranges usually below 300 V;for higher voltages accuracies may be slightly worse. 一臺典型的直流臺式數字萬用表的精度可以達到0.002%(一種6 1/2 數字儀器的一個讀數)。這種精度經常用于低電壓范圍(一般在300 V以下);對于更高的電壓精確性可能稍微差點。 The point here is to read the instrument’s specifications carefully, and if things are not clearly spelled out, contact the instrument manufacturers’ application. engineering department. 此處的要點是仔細地閱讀儀器說明書,如果說明書上沒有詳細的說明,可與儀器制造商技術支持部門聯系。 High-voltage DC measurements usually involve a high-resistance voltage divider, which usually forms a high resistance to the circuit being measured and thus draws infinitesimal current. One common need for measuring DC voltages in the range of 2 to 30 kilovolts(kV)is in measuring cathode-ray tube(CRT) final anode voltages. Many CRTs used in colour television sets and computer monitors have voltages in the range of 15 to 30 kV. The accuracy of such measurements usually is not critical and should be in the range of 3 to 5 percent of the reading. A highly insulated hand-held probe containing the voltage divider is often used and comes as an accessory from some manufacturers. 高壓直流測量通常需要一個高阻抗的分壓器,它對被測量的電路通常形成一個高電阻以便只有極小的電流被分流。對于測量2到30kV的直流電壓,最普通的需要是測量陰極射線管(CRT)的決定電極。許多陰極射線管所包括的彩色顯示器和智能探測器有15到30kV的電壓。但是用陰極射線管所作測量的精度并不令人有所挑剔,它的精度在讀數的3%到5%之間。一種高度絕緣的包括分壓器的手持式探頭經常被使用而且作為某些設備的附件來配備。 New Words Phrases and Expressions Parameter參數(量,項)  incoming(新,接著)來的  diagnostic診斷的  verification檢驗;鑒定  operational操作的;工作的;運轉的  oftentimes經! regulation調整;調節  defective出故障的;不完善  monitor監視器;監控器;監視;監控  outage斷電 voltmeter電壓表;伏特表  reading示值;讀數;(儀表的)指示數  multimeter萬用表 magnetoelectric磁電(機)的 flickering撲動的;搖曳的  flashing 閃光  power用動力發動;賦予……動力  impedance阻抗  megohm兆歐(姆)  shunting分路;分流  either-or非互即彼;兩者擇一的  solid-state固體的;固態的 log記錄  built-in內裝的  common共同;共用權 probe 探頭;測頭 specification說明書;明細表 infinitesimal極小的;微小的 divider分壓器;分流器 kilovolt千伏(特) cathode-ray 陰極射線 anode 陰極;正極  accessory 輔助部件;輔助設備 make a measurement on 對……進行測量(所獲得的結果) with accuracy精確地  full scale 滿量程;滿刻度 magnetoelectric meter movement 磁電(動)式表頭  indicating device指示裝置  range from…to…從……到……范圍  shunting capacity分流容量  connect across跨接  vacuum tube真空管;電子管  DC bench-type digital multimeter 直流臺式數字萬用表  Spell out詳細地說明;明確指出  Cathode-ray tube陰極射線管  Hand-held probe手持式探頭
[我來評論]   回答者: whsfnhs   2011-09-11 11:14   
提問者對答案的評價:
說聲謝謝,感謝回答者的無私幫助


[ 知道搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關閉窗口 ]

 
 
 
試驗設備 | 版權隱私 | 使用協議 | 聯系我們 | 關于我們 | 網站地圖 | 友情鏈接 | 網站留言 | 廣告服務| 電氣產品 | 電氣公司 | 鄂ICP備09029828號 |
銷售熱線:155-2757-5613  客服QQ:122989246  儀器儀表交流群:229674398
高壓電氣網版權所有 Copyright © 2011-2019 Hvdq.Net ,All Rights Reserved .鄂公網安備42088102000053號


免責聲明:本網所展示的信息由企業自行提供,內容的真實性、準確性和合法性由發布企業負責。本站對此不承擔任何誤證責任。
在家用手机怎样赚钱是真的吗 百家乐真人游戏 彩票平台注册 快乐双彩开奖日 北京11选五30期开奖今天 江苏快3老快3开奖走势图 10月14日上证指数 云南快乐10分手机版 盈在线上亠杨方配资 四川快乐12开奖结果 吉林快3预测