瞬時電壓極性 的英文怎麼說

中文拼音 [shùnshídiànxìng]
瞬時電壓極性 英文
instantaneous voltage polarity
  • : Ⅰ名詞(眼珠一動; 一眨眼) wink; twinkling Ⅱ動詞(眨眼) wink
  • : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
  • : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
  • : 壓構詞成分。
  • : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • 電壓 : voltage; electric tension; electric voltage
  1. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直線感應機進行了深入細致研究,內容包括: ( 1 )本文採用有限長行波面流作用於有限長鐵芯上的模型,引用了氣隙磁場一維解,研究了單層繞組磁場,奇數半填槽雙層繞組在採用整距和短距磁場的分析、比較,簡單介紹了二維解; ( 2 )用有限元軟體ansoft對大圓環直線感應機空載氣隙磁場進行了靜態分析,並分析了結果; ( 3 )用軟體進行了額定下的態分析,得到了轉矩,位移,轉速隨間變化曲線圖,利用單霍爾元件測定轉速並與軟體計算結果進行了比較,採用等效路法計算了堵轉的最大磁力並做實驗進行了驗證,由實驗測得了三相流波形,並與計算結果進行了比較,對其不對稱進行了定分析。
  2. In contrast with conventional thermo - ionic cathode, field emitter array ( fea ) cathode has many special advantages, such as room - temperature operation without a cathode heater, high current density, low power dissipation, excellent on / off isolation characteristics and instant turn - on characteristics

    與傳統的熱陰相比,場發射陣列陰具有許多獨特的優點,如無需加熱,可以在室溫下工作;流密度比熱陰高幾個數量級,並可工作在低調制下;功耗低;好的開關特;可啟動等。
  3. For the pin diode, its major transient behaviors are forward voltage recovery and reverse current recovery. this dissertation describes these performances by lumped - charge approach, and then developed an improved lumped - charge model for pin diode and a corresponding parameter extraction approach, which can reduce parameter measurement and enhance parameter accuracy

    Pin二體中主要的態現象是正向恢復和反向流恢復,本文採用集總荷的方法描述了它的動、靜態特,提出了改進的集總荷的pin二體高頻模型,同提出了改進的曲線擬合模型參數抽取方法,減少了所需的參數測量實驗並提高了參數抽取的精度。
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