field switch 中文意思是什麼

field switch 解釋
磁場開關
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • switch : n 1 （樹上折下的）細樹枝；軟鞭子；鞭打。2 假發；（尾巴上的）毛簇。3 〈美國〉【鐵道】道岔扳子，軌...
  1. Safe loop switch abscission or apparatus room transfer of an official from field service to capital fast machine switch broken circuit and action

    安全迴路開關切斷或機房內調速機開關斷路而動作。
  2. We collect distributing of near - field of optical switch output - port. using gaussian curve fit, we measure the extinction ratio of " bar channel " is 8db, and the extinction ratio of " cross channel " is more than 18db

    利用紅外攝像機採集的光開關輸出的近場分佈，採用對場光場能量高斯擬合的近似方法，測得該關注入光開關的直通端的消光比可以達到8db ，而反射端的消光比則至少可以達到18db以上。
  3. Power mosfet is adopted to switch heavy current of magnet core in order to control rotating magnetic field effectively

    為了使磁場得到有效控制，本文採用功率nosfet實現電磁線圈大電流的開關。
  4. Dry reed relays are also operated by energizing a coil, but in this type of relay, the coil is wound around the switch so that the induced magnetic field closes the switch

    干簧繼電器也是靠激勵一個線圈進行工作的，但是在這種類型的繼電器中，線圈環繞著開關，從而感應的磁場使開關閉合。
  5. Make a general survey of the 21st century when the modern science and technology is developed at a high speed, from toy for children to household appliances, from industrial structure to space technology, use the field and limitless space, has already begun to replace the traditional switch in each field, and go on the leading position progressively, become the era mainstream

    縱觀現代科技高速發展的21世紀，從兒童玩具到家用電器，從產業結構到航天技術，使用領域和無限空間，已經開始在各個領域中取代傳統的開關，並逐步走上主導地位，成為時代主流。
  6. Positive electrode and negative electrode that execute spanning crack prevention are simulated as the source point and merged point, so the temperature field owing to the concentration of current around the crack tip is educed at the moment when the current is switch on

    將實施跨越止裂時的正、負電極比擬為電流場中的源和匯，從而導出了在瞬間電流作用下，裂紋尖端附近區域因繞流而形成的溫度場。
  7. According to the theory of acousto - optic ( ao ) interaction, the formulas of diffraction loss of two ao q - switches, which acousto - field are perpendicular or parallel one another, the power divider for ensuring two ao q - switch synchronization and effective power driving is designed. the calculation results are satisfied with nd : yag laser experimental results. it is show that two ao q - switches, which acousto - field are perpendicular each other, switch - loss is nearly one times larger than one ao q - switch, one of third larger than the two ao q - switches which acousto - field are parallel

    從理論上對聲光器件衍射損耗作了分析與計算，研究了二維雙聲光器件對提高衍射損耗效率的影響，在實驗中採用二維雙聲光組合器件提高聲光器件的對nd ： yag激光器的關斷能力，較之單聲光的關斷能力提高了一倍左右，而對于平行雙聲光也提高了30左右，並設計了聲光驅動功率分配器以驅動雙聲光器件達到同步，消除了激光輸出的多脈沖現象，提高了脈沖列的輸出功率。
  8. With the development of electronic technology in the field of high - frequency and high - power, power mosfet is gradually enhancing its important status in semiconductor apparatus and is being widely applied in power converters as switch. with the increasing of the operating frequency ( > 200khz ), the energy loss caused by parasitic capacitance will affect the efficiency of power transforming in converters. especially in the applications of high frequency power supply using mosfet as main devices ( the unit of frequency is mhz ), the energy loss caused by the switch process will badly affect its efficiency

    隨著電力電子技術進一步向高頻的大功率用電領域發展，功率mosfet在各種電力半導體器件中的重要地位日益顯著，使用功率mosfet作為開關器件的功率轉換電路也日益增多，但隨著器件開關頻率的提高（大於200khz ） ，由器件極間電容引起的能量損耗將會影響到功率轉換電路的能量傳輸效率，特別是在以mosfet作為開關器件的高頻感應加熱電源中（工作頻率可達兆赫） ， mosfet在開關過程中的能量損耗嚴重影響到電源的效率，因此如何減小開關器件的損耗提高高頻功率轉換線路的效率成為電力電子技術領域的重要研究課題之一。
  9. China is particularly connector forum areas connector. the special field connector, line cable, automobile electron, fibre - optical, switch, communication equipment and material produce a manufacturing engineering, the testing standard communicates with

    中國連接器論壇是特別領域連接器，連接器技術，線束，電纜線，汽車電子，光纖，通訊設備和材料生產製造工程，測試標準發布和收集的專業技論壇
  10. Field of view min switch time

    不同視場角轉換時間
  11. The vacuum killing arc room has been the mainstream and future developing aspect in middle - voltage switch field because it has fully utilized the excellent characteristic of the insulation and killing arc of the vacuum

    真空滅弧室由於充分利用了真空優異的絕緣與熄弧特性，在中壓開關領域中已成為當前的主流及未來發展的方向。
  12. Occasionally, however, the dipole part of the field reverses, causing the locations of the north and south magnetic poles to switch

    不過，有時候磁場的偶極部分會倒轉，導致了北磁極和南磁極的位置轉換。
  13. So it is an important research in the field of the electronic technology to reduce the loss caused by the switching device and to improve the efficiency of high frequency power converters. this paper primarily focuses on the optimization of the mosfet parasitic capacitance so as to reduce the switching loss and improve the efficiency of power transforming in converters using mosfet as switch

    通過分析mosfet器件的開關特性，根據輸出電容c _ （ oss ）給器件引進的動態損耗來確定優化器件輸出電容西安理工大學碩士學位論文l變化曲線的目標函數，運用可行方向法求解帶約束條件的最優值，確定出優化的輸出電容人變化曲線。
  14. A 200kv laser triggered multi - stage multi - channel switch, a 200kv / 100ka multi - channel ring rail electrode field distortion switch and a 5mv laser triggered multi - stage multi - channel switch were designed and tested. the main results and conclusions of this dissertation are as follows : ( 1 ) the switching property of sf _ ( 6 ) - n _ ( 2 ), sf _ ( 6 ) - ar mixtures and the design techniques of multi - channel field distortion switch were studied. a 0 - demension " 2 - 2 " model was developed to study the interaction of the uv laser with sfe gas and sf _ ( 6 ) - n _ ( 2 ) mixtures

    本論文研究了激光觸發多級多通道開關的運行機理、 sf _ 6 n _ 2 、 sf _ 6 ar混合氣的開關特性和多通道場畸變開關設計技術，建立了零維激光觸發火花隙及激光觸發多級多通道開關數值模擬模型，研製了200kv原理型激光觸發多級多通道開關、 200kv 100ka環軌式場畸變開關和5mv激光觸發多級多通道開關，獲得的主要成果和結論如下： （ 1 ） sf _ 6 n _ 2 、 sf _ 6 ar混合氣的開關特性及多通道場畸變開關設計技術研究方面。
  15. A control signal generates a magnetic field in the relay s coil that physically closes a switch

    一個控制信號在繼電器的線圈產生磁場，物理地閉合開關。
  16. This paper is based on the pingpong bridge field ground protection, it presents one point to ground protection scheme which include the self - checking method of switches. the two point to ground protection scheme presents self - adapting fault location warp criterion after evaluating the effect on the calculation of fault location made by the change of transient resistance in the process of bridge switch. in order to make up the shortcoming of location warp criterion, this paper presents a comprehensive scheme into which integrate the second harmonic criterion

    本文針對乒乓式保護，結合開關自檢方法提出了完整的一點接地保護方案：在兩點接地保護方案中估算了開關切換過程中過渡電阻變化對接地點位置計算的影響，提出了故障位置偏差式兩點接地的自適應判據，為了彌補該判據的缺陷，提出了結合二次諧波輔助判據的綜合方案。
  17. In this paper, the technique of computational fluid dynamics ( cfd ) is adopted to simulate the air distribution in the generator hall, the water - turbine hall and switch station. analyzes and compares the distributions of the velocity field, the temperature field and the pmv - ppd in the workshop by different outlets layouts, outlets quantity and outlets size, bring forward applicable scheme for the engineering, provide the basis of the workshop ventilation design

    對不同的風口大小、風口數量、風口布置位置形成的廠房內速度場、溫度場、 pmv - ppd分佈進行了分析對比，提出適合於工程實際的送風方案，並對所選方案的不同運行工況進行了數值模擬研究，為設計及運行實踐提供了依據。
  18. So can completely satisfy measurement request of various natural gas from all parts of oil and gas field and transmission pipeline in our country. there are switch function of multi - kind signal input, only need to simple setup by instruments menu, namely can realize lightly switching between multi - kind input signal, and has jumproved universality and reliability of instrument

    Do為無源開關量信號，操作器在手動控制時輸出開關量閉合信號給前級的dcs系統或調節器， dcs系統或調節器收到do狀態信號后即停止pid運算，並使操作信號輸出跟蹤閥位反饋信號。
  19. In the field of medium voltage switch apparatus, vacuum circuit breaker has been widely used for its advantage of oil - free, miniaturized and easy access

    在中壓開關設備領域中，真空斷路器由於實現了無油化、小型化、便於檢修等優點得到了廣泛應用。
  20. According to the idea, five - wheel device converting the straight line movement into the rotation movement which is convenient to measure, a non - contacting velocity measurement sensor device using optical switch and steel tapeline to measure the straight line movement has been designed and produced, which is an exploration in this field

    根據五輪儀「把不易測量的直線運動轉變為容易測量的轉動」的思路，利用光微開關和捲尺鋼帶設計製作了一種非接觸式的直線運動物體速度測量傳感裝置，是一個具有創造性的探索。
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