ac supply 中文意思是什麼

ac supply 解釋
交流電源
  • ac : ＝1 air controlman 美海軍航空兵的空中交通管制員。2 alternating current 【電學】交變電流，交流電。...
  • supply : vt （ plied） 供給；供應；配給；補充，填補，彌補（不足、損失等）。 Cows supply us （with） milk ...
  1. In the hardware design, the paper completes modules ’ design like outside memory, patulous a / d, patulous d / a, rs232 communication, ecan communication, led control, keyboard control, distant control, emulation, reset, logic voltage switch, dsp supply power regulate and ac - dc power circuit, as well as room layout design like anterior panel, back panel etc. and dsp transfers data with peripheral equipments except outside memory using serial ports. besides, the whole circuit is configured in interrupt response. thus, it can meet system demand as well as take full advantage of tms320f2812 ’ s hardware resource. in the software design, the paper finishs programs like the interface programms intercommunicates with people, the distant control program, ad and da modules ’ control program, in addition, the paper select the velocity and acceleration state - feedback algorithm and is written in the program. the software design uses dsp integrate exploiting environment named ccs2. 2 of ti inc. as software instrument, and programs with the combination of c language and assembly language. moreover, in order to maintenance or modify the software expediently and shorten software ’ s exploitation time, the design adopt software modularization technique. finally, some air cylinder experiments are carried out to proved that the pneumatic controller is very practical

    在硬體設計中，本文完成了片外存儲器擴展、 a / d擴展、 d / a擴展、 rs232通信介面、 ecan通信總線介面、液晶顯示控制、鍵盤控制、遠程控制、模擬、復位、邏輯電平轉換、 dsp工作電源校正電路和ac - dc電源等模塊設計以及控制器前面板、後面板等的空間布局設計。其中dsp與除外部存儲器的外圍設備之間的數據傳送全部採用串口通信，同時系統電路配置成中斷響應方式，這樣既滿足了系統要求，又充分利用了tms320f2812的硬體資源。在軟體設計中，本文完成了人機界面功能模塊、遠程控制模塊、 ad擴展模塊、 da擴展模塊、速度和加速度狀態反饋的控制演算法的程序設計。
  2. The algorithm of svpwm that is adopted by the system implements motor speed - regulation by control of magnitude and phase of motor flux. it can generate less harmonics in the output current of power inverter and less losses of ac motor, reduce pulsant component in output torque and raise availability of dc supply voltage

    系統採用的svpwm演算法通過對空間磁鏈矢量幅值和相位的控制來調節電機轉速，減少了逆變器輸出電流的諧波，降低了脈動轉矩，提高了電壓的利用率。
  3. The design of voltage amplifier for dc ac standard supply

    交直流標準源電壓放大器的研製
  4. Power supply comes with 4 built - in ac outlets, surge protected and breaker, automatic " turn - on " and " shut - down " function

    智能型電源供應器有4個內建的電源插座，防雷擊保護及過載保護，
  5. The mts are powered by solar panel and li - ion chargeable batteries in remote areas having no ac supply

    終端採用了太陽能電池板+鋰離子電池包的供電方案，解決了在沒有市電的野外終端的供電問題。
  6. Di - on electric one of the beijing hi - new - tech enterprise develop and manufacture lots of equipment like sf6 dewpoint meter dp100, cable fault location system cfl6000 and more. di - on electric supply the most advanced technology and equipment on such as gis surge arrestor on line monitoring, resistance measuring, ac dc metrology, thermal - temperature bridge, power transformer diagnostic and testing, cable diagnostic and fault location, sf6and oil moisture measuring, oil treatment and testing, optic fiber temperature monitoring, circuit breaker testing, relay testing and more

    迪揚電氣在gis和避雷器的帶電測試與故障診斷分析，電力電纜的故障定位與局放檢測，變壓器電抗器的各種測試診斷與溫度監測， sf6的水分測量與回收，絕緣油的測試分析與濾油處理，紅外測溫與光纖在線測溫，以及各種電阻測試與計量，溫度計量與電能計量等方面擁有世界一流的技術與成熟的儀器設備。
  7. Skj ( jjw ) series of ac purifying regulated power supply, incorporating functions of regulation and auti - inter ference, designed and muters, xerox, video equipments, medical instrmments and other electr onicinstrmmerts and autocontrol systems for is wide vange of regulating, high precicion, quickacting, high effciency, small itcan restrain restrain sharp voltageand protect from moise of electric power net

    系列進精密凈化電源是當今國際上普遍採用的現代電源調節技術，配以大容量濾波器與集成化控制系統構成；它具有如下特點：可靠性好、效率高、優良的動（瞬）態，體積小、重量輕、噪音低、負載適應能力強；適用於對電源要求較高的儀器或設備。
  8. Di - on electrics service and products cover the power electric field including power generation transmission distribution, power equipment manufacturing, subway, utilites, ac dc metrology field as well, more than 500 units of electric power utilities and stations such as beijing power supply bureau, guangzhou power supply bureau, baosteel, three gorges power station and more manufacturers like siemens, abb, alstom, bicc, pirelii, toshiba and more and 30 units of metrology institutes in china like nim, tsinghua university and more are our user. di - on electric is sole and exclusive distributor for numerous famous companies like transinor doble norway, measurements international canada, ndb canada, schuetz germany, aan germany, dr. strauss germany and etc, taking care of their business and service in p. r. china including hongkong

    絕大多數員工擁有本科和研究生以上學歷，在電力系統和計量系統工作多年，從事電力檢測帶電監測和計量測試儀器的技術服務和市場銷售工作長達10年以上，為約500多家電力工業系統的發供電部門如北京供電局，廣州電力局，深圳供電局，三峽電廠，廣州抽水蓄能電廠，田灣核電站等等，科研調試部門如廣東省電力試驗研究所，湖北省電力試驗研究所等等與設備生產廠如siemens ， abb ， alstom ， toshiba等等提供了國際最先進可靠的測試技術和儀器設備為約30多家國內二級以上相關計量科研院所，包括國家計量院，清華大學，中國運載火箭研究院，空間技術研究院，航天二院，成飛，西飛和各省市計量院，電力試驗研究院所等提供了大量最先進可靠的計量檢測儀器。
  9. The conventional switching power supply usually use a diode rectifier followed by a bulk capacitor to convert ac voltage to dc voltage, resulting in the pulsating waveform of the input ac line current, low power factor ( generally 0. 65 ) and high harmonic line current

    傳統的開關電源設備通常採用二極體橋來進行整流和一個較大的電解電容來進行濾波以實現輸入電壓的交直流轉換，導致輸入電流為一個很窄的脈沖波並含有較多的諧波分量，功率因數變低（通常只有0 . 65 ） 。
  10. To adjust the handling capacity of the centrifuge by regulating 0 and 1 ， suggestions are put forward as follows : ( 1 ) using dc motor instead of ac motor when scr system being used, ( 2 ) mounting a coupling on the drum shaft, ( 3 ) adding a liquid supply control system to control the filling of the fluid in the coupling

    為此，提出改進建議: （ 1 ）在有scr可控硅系統的現場，用直流電動機代替交流電動機，用控制電流大小的方法來調節電動機的轉速，從而控制0 ， （ 2 ）在滾筒軸上安裝一偶合器，利用偶合器的無級調速的特點來達到自動調節離心機處理速度和處理量的目的， （ 3 ）在安裝偶合器的基礎上，增加一個液體供應控制系統。
  11. Phascon technology introduced in this paper is to improve the outer operation parameters of ac motor, by on line detecting the motor phase angle between current and voltage to adjust the input supply voltage to the motor, to realize the flexible power management mode for ac motor, so as to increase the operation efficiency and reach energy - saving purpose

    本文闡述的相控技術是從改善電機外部運行參數入手，通過實時檢測電動機運行相位角來調整電機的輸入電壓和電流大小，實現柔性化能量管理模式，提高電機效率達到節電的目的。
  12. This paper focuses on the control strategies to improve the performance of the three - phase ac - dc pwm voltage - source - converters ( vsr ) under unbalanced power supply. the problems such as negative sequences current, voltage and current harmonics and un - constant ( un - smooth ) power flow from ac to dc side are discussed in this paper. the analytical solutions for negative sequence current and harmonic current elimination are obtained by fully feed - forward of negative sequence voltage and producing a non - harmonic current command of the inner - loop

    電網不平衡時，基於電網平衡為約束條件設計的三相vsr將出現不正常運行狀態，比如三相vsr交流電流中出現負序分量，使交流電流嚴重不對稱；直流電壓和交流電流中出現非特徵諧波分量，使直流電壓和交流電流波形發生嚴重畸變；三相vsr從電網吸收不平衡的瞬時功率等一系列問題。
  13. Automatic exchange for dc and ac supply

    直流電源與交流供電能自動轉換。
  14. New, low - noise, one - phase ac induction motor is in mass production and supply

    盈餘轉增資為資本額ntd5 ， 000 ， 000
  15. P. s. ： the power supply shall be tested at max. ac voltage ( 264vac ) and min

    應該在最大交流輸入電壓264伏和輕載、空載下測試。
  16. Note 1 : for outline dimension 4848 instrument, only can select alarm 1 alarm 2 transmitting 485 communication feed function, can not more than 2 ; for example : selects up limit alarm down limit alarm, alarm communication, alarm transmitting etc. ; transmitting and feed cannot be selected at the same time ; no double screen display ; no 2226 v ac - dc power supply

    注1 :外形尺寸4848儀表，只能選擇報警1報警2變送485通訊饋電功能，不能多於2個以上;例:選擇上限報警下限報警報警通訊報警變送等變送和饋電不能同時選擇無雙屏顯示無22 26 v交直流電源供電。
  17. But, with the development, it can ’ t meet the need of modern manufacture more and more. as a result, handhold digital storage oscilloscope is studied. handhold dso is an important genre of digital storage oscilloscope, it ’ s outstanding feature include small form, use battery instead of ac supply for power, and include the whole function of dso while implementing the basic function of multimeter. handhold dso can measure wave range automatic, analyze wave use cursor, measure resistance 、 diode and short circuit if choice digital multimeter

    手持式數字存儲示波器是數字示波器的一個分支，它具有體積小、重量輕、便於攜帶、電池供電、無須外接交流電源等優點，它集數字萬用表（ dmm ） 、數字存儲示波器於一體，可自動對信號進行幅度的測量，也可用光標對波形進行分析，同時還可以通過菜單選擇來實現對電阻、二極體以及電路通斷的測試;可以選擇觸發通道和觸發模式。
  18. The voltage selector setting should be checked to see that it conforms to the local ac supply voltage

    必須查看本機交流電壓選擇器之預設狀態是否符合本地交流電壓。
  19. 110 240vac universal ac supply input with different country plug inlet and outlet please describe in detail for what plug when ordering

    110 240vac通用電壓輸入，提供不同國家插頭訂購時請說明， pda輸出插口訂購時請說明pda牌子及型號。
  20. Abstract : the structure and working principle of switching power supply forthe computer are analyzed ， the methods and parameter - design which changed 220 v ac supply into 48 vdc supply for computer are introduced

    文摘:分析了微機開關電源的結構和工作原理，介紹了將微機電源改為48v直流供電的方法與參數設計。
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