ac noise 中文意思是什麼

ac noise 解釋
交流噪聲
  • 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。...
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  1. This instrument can meter the electric level, frequency spectrum, carry to noise ratio, a / v, cobbly ratio, voltages of the ac trunk line and the battery. furthermore it can display the above information on the lcd and store them in the eprom

    該場強儀可以對有線電視系統的電平、頻譜、載噪比、 a v比、系統不平度、交流干線和電池電壓等進行測量，並通過液晶顯示，結果保存於eprom中。
  2. Traveling cranes, drying furnaces, transformer wiring facilities, transformer automatic inspection machines, pressure meters, insulation resistance meters, ac dc stabilized power sources, memory high coder brightness meters, light meters, film thickness meters, noise meters, hand thermometers

    起重機，乾燥爐，變壓器卷線設備，變壓器自動檢查機，耐壓計，絕緣電阻計，交流直流穩定性電源，內存快速編碼器亮度計，光度計，膜厚計，噪音計，手指尖溫度計
  3. Win600 freight lift is provided with the safe and reliable microcomputer control or plc control. the traction is equipped with vvvf wector to make the start, acceleation, deceleration and stop of lift stable and confortable. zero - speed braking stop is uesd to greatly increase the leveling accuracy, reduce te noise and vibration of operation and save energy over30 % than traditional ac double - speed traction

    Win600系列載貨電梯採用微機活plc控制，安全可靠，拖動系統採用vvvf矢量控制使電梯的啟動加減速停車都十分平穩舒適，停車時實行零速控制動停靠，大大提高平層精度，降低運行噪音和振動，並且節能環保，比傳統的交
  4. Row winding, winding engine adopting ac servo engine with berger lahr three phase mixed stepping can solve the resonance, big noise, high speed and small torque for traditional row winding hy normal stepping engine

    1 、排線、繞線電機採用具有支流伺服電機運行特性的百格拉三相混合式步進。徹底解決傳統排繞用普通步進電機有共振區、噪聲大、高速扭矩小的缺點。
  5. The environment - preserved and high efficient power switch design not only saves energy but completely solve the problem of ac noise interference

    綠色環保、高效的開關電源設計，既節能，又徹底解決交流聲噪音干擾問題。
  6. Since the industrial frequency transformer fulfills the boosting voltage part, most of the inverters have such drawbacks as larger size, more weight and bigger ac noise

    目前，大多數戶用光伏逆變電源產品存在著體積、重量、交流噪音大等不足之處，原因在於升壓環節由工頻變壓器實現。
  7. With the development of power electronics technology and devices in recent years, instead of using the industrial frequency transformer to boost voltage, dc / dc high frequency converter achieves the function. the system has higher power density and conversion efficiency, and the size, weight, ac noise of which has been greatly reduced

    近年來，隨著電力電子技術與器件的迅速發展，使用dc dc高頻變換技術代替工頻升壓，系統具有較高的功率密度與轉換效率，裝置體積、重量與交流噪聲大大減小。
  8. Abstract : in this paper, the reason arisen from the noise of the bx1 ac arc welder is analysed. for the main factor, moving core viberating, the measure to reduce the noise is advanced from three hands, inside and outside slide. the other measure is also advanced for the second factor

    文摘:對bx1系列交流弧焊機噪聲產生的原因進行了分析，針對產生噪聲的主要原因? ?動鐵芯的振動，從三個方面、內外滑道分別提出了具體的降低措施，並對次要原因也提出了具體降低措施。
  9. Specification for calculation of noise disturbance effects of ac electrified railways on telecommunication lines

    交流電氣化鐵道對電信線路雜音干擾影響的計算規程
  10. 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
  11. Used in the circuits of across - the cline type noise suppression and other ac dc circuits

    適用於電源跨線降噪線路以及其它直流交流場合
  12. The dtc system is a high - performance ac driving system. but conventional speed controller in dtc system is ped adjuster, which ca n ' t make the system have enough quick response, the ability to restrict the noise and strong robustness to the parameters of the system

    作為一種高性能的交流調速系統，在直接轉矩控制系統中，速度調節器通常都採用pid調節器，使得系統的快速性和抗干擾能力及對系統參數擾動的魯棒性不夠理想。
  13. Yg832 electronic multifunctional stretcher, adopting ac servo system and exactitude screw arbor drive, has many characteristicses, such as reasonable structure, simple operation, low noise and smooth run etc, adopting scm control, displayed by lcd, intellective interface, deposit the data into the database if connected with the computer

    Yg832多功能拉伸儀，採用交流伺服驅動，滾珠絲桿傳動，具有結構合理，操作簡單，噪聲低，運行平穩等特點，電器控制採用單片機控制，液晶中文顯示，人機對話界面，與電腦連接可建立數據庫。
  14. In electronics, a circuit for converting ac voltage to low voltage dc in such a way that the output is regulated to minimize noise and voltage fluctuation

    在電子技術中，把交流電轉換成低電壓直流電的一種電路。這種電路的輸出是經過調整的，使它的噪聲及電壓波動都很小。
  15. Compared with dc - mhd propulsion, ac mode has no electrode and does n ' t apply electric field to fluid directly. thus it avoids the detriment and noise caused by the air bubble generated by electrolysis, and makes the ship more quietly. these characters will help to develop a more efficient ship thruster

    與直流磁流體推進相比，交流磁流體推進方式的最大特點就是沒有電極，因此沒有電極壽命問題，消除了電極表面壓降對推進器效率的影響，也沒有電機表面電化學過程產生的不良效應，如氣泡、電解質對海水的污染等。
  16. Electronic no - grade timing, automatic constant temperature, alternating current ( ac ) contactor controlling, direct spray cooling machine, hot air machine which can be adjusted 1 - 3 gear, and it is stabilization and reliable, long life and less noise

    電子無級調速，自動恆溫，交流接觸器控制，直射冷卻風機，熱風機可調1 - 3擋，穩定可靠、壽命長、低噪音。
  17. This paper gives the way of using the ac servo drive instead of the traditional drive mode consisted of the main motor, the gears and belts, realizing the synchronous drives of the multi - motors. the closed loop control technology of the speed and the position embedding has been adopted to track in real time, then to reduce the transmission error and the noise, so as to increase the control precision and the stability of the combination and simplify the maintenance and repair of the mechanical and technical system

    採用交流伺服驅動代替傳統的由主電機、齒輪和皮帶組成的傳動方式，實現多電機同步驅動;採用速度環和位置環嵌套的閉環控制技術，進行實時跟蹤，達到減小傳動誤差、減小噪音，增強機組的控制精度與穩定性、簡化機電系統的維護與修理的效果。
  18. The prototype test results indicate : voltage mode and current mode ac - ac mode ac / ac converters with high frequency link have the advantages such as high frequency electrical isolation. simple topology, two - stage power conversions, high power density, bidirectional power flow, good line current waveform, no audio noise, high converting efficiency, and high input power factor etc. this kind of converter lay the key technical foundation on new type regulated sinusoidal ac power supply, electronic transformer, ac regulator, and wave converter etc

    試驗表明，這類變換器具有高頻電氣隔離、電路拓撲簡潔、兩級功率變換（ lfac hfac lfac ） 、功率密度高、雙向功率流、無音頻噪音、變換效率高、網側功率因數高等優點。為新一代正弦交流穩壓器、電子變壓器、交流調壓器、同頻波形變換器的實現奠定了關鍵技術基礎。
  19. It is concluded that the primeval design of hv ' ac system decide that the building noise environment is good or bad. as to say how to resolve the six sides problems : machine noise, machine vibration, fan noise, duct noise, draft noise and cross - talk noise

    我們認為：建築（使用hvac系統）聲環境的好壞取決于hvac系統初期的設計，也就是如何解決好機械噪聲、機械振動、風機噪聲、管路噪聲、氣流噪聲以及管路交互傳遞噪聲這六方面的問題。
  20. This kind of converter has the advantages such as high frequency electrical isolation, simple topology, two - stage power conversion ( lfac / hfac / lfac ), high power den sity, bi - directional power flow, soft commutation of output cycloconverter, uni - polarity spwm waveform, no audio noise etc. the correction and advance of the new concept of the 220v + 10 % ( 50hz ) / 220v ( 50hz ) uni - polarity phase - shifted controlled voltage mode ac / ac converter with high frequency

    這類變換器具有高頻電氣隔離、電路拓撲簡潔、兩級功率變換（ lfac hfac lfac ） 、功率密度高、雙向功率流、輸出周波變換器實現了zvs換流、單極性spwm波、無音頻噪音等優點。
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