降頻轉換器 的英文怎麼說

中文拼音 [jiàngbīnzhuǎnhuànqì]
降頻轉換器 英文
down converter
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 轉 : 轉構詞成分。
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 轉換器 : -ad
  • 轉換 : change; transform; convert; switch
  1. This dissertation focus on a innovation methods for inverter controlled hydraulic elevator system applying pressure accumulator as the " pressure - energy transformer ". the required power supply and running energy can be reduced remarkably when accumulators storing and releasing pressure oil. then the key items about hydraulic speed control system based on the ens 1 - 2 and other hydraulic elevator standards are investigated in detail

    本論文主要研究了採用蓄能器-液壓泵馬達構成的「壓力-能量轉換裝置」來儲存釋放變頻驅動液壓電梯系統的能量，從而降低液壓電梯裝機功率和運行能耗的新方案；在此基礎上，根據國內外液壓電梯的標準進行了與速度控制相關的關鍵項目測試，最後針對本課題研製的節能控制系統與當前市場上幾種典型的液壓電梯控制系統進行了能耗對比研究。
  2. Direct modulator converts baseband signal to rf signal without upconvertion. the system design is relatively simple compared to upconversion. so direct modulator provides adventages of compact size, low cost and low spurious response

    直接調制將基帶信號直接轉換為射頻信號，不需要二次頻率變換，與上變頻方式相比系統結構簡單，降低了對濾波器的要求，具有體積小，重量輕，成本低等明顯的優點。
  3. Field use and test shows that, ( 1 ) the coupler drive system improves the soft characteristics in the starting and transmission of the pumping unit ; ( 2 ) the new drive system solves the problems of drive slippage and frequent change of rubber belt ; ( 3 ) it provides large transmission rate and enables adjusting the stroke number optionally ; ( 4 ) the system efficiency of the pumping unit can be improved and power consumption can be lowered by using the coupler drive system

    現場應用測試表明： （ 1 ）耦合器傳動系統可改善抽油機啟動和傳動中的軟特性，提高整機和抽油桿的使用壽命； （ 2 ）解決了抽油機膠帶傳動中打滑「丟轉」和頻繁更換膠帶等問題； （ 3 ）實現了抽油機大傳動比，沖次任意可調，從而滿足供液不足油井和稠油注蒸汽生產井的不同需要； （ 4 ）可提高抽油機系統效率2 . 24 % ，日耗電量下降39 . 6 % 。
  4. Next, the effects of the electron - beam quality on the characteristics of the vircator are investigated with simulation method. the simulation results show that the front edge of the beam pulse has almost no effect on the saturated microwave output, while good front edges can accelerate the saturation of the virtual cathode oscillation, and beam quality ( except its energy spread ) has almost no effect on microwave frequency, and so on

    結果表明：上凸形束脈沖前沿可使虛陰極振蕩器達到飽和振蕩的時間縮短但對微波飽和功率基本無影響；束流脈寬應足夠大，否則虛陰極振蕩器不能達到飽和振蕩（對應本文中的模型，束脈寬應大於16ns ） ；能散度的影響不可忽視，當能散度為5時，束波轉換效率從單能束時的3 . 8降至1 . 5 ；束流質量（除能散度外）對微波頻率基本上沒有影響等。
  5. The cpld can offer its particular functions. for example, reducing the number of components and devices, making the layout board convenience and simple, decreasing the device ' s volume. it is propitious to make portable oscilloscope

    選用一般的a / d轉換器和up控制器即能實現對高頻率的重復信號進行測量，大大降低了成本和外圍電路復雜程度和設備體積，有利於製作便攜式示波器。
  6. I designed both hardware and software to develop the multi - channel analyzer, of which the key is the pc / 104 embedded computer. in a word, it has five traits as follows : ( 1 ) the key of apparatus is the pc / 104 embedded computer ; ( 2 ) on the hardware, we introduce the high - speed a / d conversion component - max191 to improve the mca ' s conversion speed and meet the demand on the spot ; ( 3 ) adopting high frequency module of electrical source to reduce its volume. ( 4 ) the mca consumes low power no more than 3. 9 watt

    以國土資源部項目為依託，以pc 104嵌入式微機為平臺，完成了小型、低功耗能譜採集系統，特點是： （ 1 ）以pc 104嵌入式微機為平臺，實現了採集系統微機化； （ 2 ）採用高速低功耗a d器件maxl91 ，與現有的mca相比，提高了轉換速度，降低了mca的功耗； （ 3 ）採用高頻模塊電源，減小了採集系統的體積； （ 4 ）整機功耗低，小於3 . 9w ； （ 5 ）儀器重量輕。
分享友人
分享到 Line

分享到臉書