cf constant frequency 中文意思是什麼

cf constant frequency 解釋
固定頻率
  • cf : Cf ＝californium 【化學】鐦。
  • constant : adj 1 恆定不變的，固定的，穩定的，恆久的；繼續不斷的。2 不屈不撓的，堅韌的。3 忠實的，有節操的。n...
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  1. It finds that the radicals generated in plasma control the deposition process and the main bonding configurations of films are dependent on the ratio of cf and cf2 radicals in films. the films composed of cf2 and cc bonds can be obtained at microwave power above 560 w. the frequency dependence of dielectric constant ~ ( f 1 x 10 ~ ? x 106 liz ) ii and dielectric loss tan5 ( f = lxi 02 ? 1 x 1 o5hz ) follow a power law respectively and all show decreasing trends as frequency raised

    薄膜的介電頻率關系（ f = 1 10 ~ 3 - 1 10 ~ 6hz ）和損耗頻率關系（ f = 1 10 ~ 2 - 1 10 ~ 5hz ）均服從指數規律，隨頻率的增大而減小；對薄膜的電導頻率關系的分析表明，這種指數規律的介電色散關系與由缺陷中心之間簡單隧穿引起的跳躍導電過程有關。
  2. Combined with the advantages of matrix converter, ac - excited generation technique and vector control scheme, the stator flux - oriented vector control model of the variable - speed constant - frequency ( vs cf ) ac - excited generator fed by a matrix converter was developed. simulation studies of the proposed power generation system were carried out

    本文還結合了矩陣式變換器、交流勵磁發電技術和矢量控制的優點，建立了矩陣式變換器供電的變速恆頻交流勵磁風力發電機定子磁場定向的矢量變換控制系統模型，對矩陣式變換器在交流勵磁發電系統中應用進行了模擬研究。
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