頻率調變指數 的英文怎麼說

中文拼音 [bīnlǜdiàobiànzhǐshǔ]
頻率調變指數 英文
frequency modulation index
  • 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...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 指 : 指構詞成分。
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 頻率 : frequency; rate
  • 指數 : 1. [經] （比數） index number; index 2. [數學] exponent
  1. The system is based on chopper constant current drive technique, according to the top level design idea, adopting advanced specical subdivision control integrate circuit and powerful function 80c196kc to organize the system frame, desiging the minimum system of single - chip microcomputer, multifunction i / o interface circuit, relay switch circuit, keyboard and display circuit, multifunction digital setting interface circuit and so on, utilizing the hso and hsi interface circuit which are owned by this single - chip microcomputer exclusively and its powerful command system to realize dual - degree switch control, automation orientation, automatically searching zero position, locking machine when stopping, frequency to set digitally, automatically adjusting speed through changing frequency, swithing subdivision or squarewave control, on the basis of above, the system also have the function of running according to the setting steps and the frequency, voltage and current to display through the led, etc

    系統基於斬波恆流驅動技術，按照頂層設計思想，採用先進的專用細分控制電路和功能強大的80c196kc單片機來組建系統構架，設計了單片機最小系統、多功能i o介面電路、繼電器切換電路、鍵盤顯示電路和多功能數字設定介面電路等，利用該單片機獨有的hso和hsi介面及其強大的指令系統，實現了雙余度混合式步進電動機的余度切換控制、自動定位、零位自動搜索、停機鎖定、數字化頻率設定、自動調頻變速控制、細分方波切換控制，在此基礎上，該系統還設有按預置步運行、 led頻率電壓相電流顯示等功能。
  2. This provides new clew for making the controller ' s parameters of pump - control - motor speed governing system with inverter certain. ( 4 ) the performance simulating in time domain and open loop step experiment of pump - motor speed governing system with inverter are made, and the rules of parameter change affecting response performance are obtained. the theoretic references are provided to improve the system ' s performance

    （ 4 ）對主要參數對變頻泵控馬達調速系統的性能影響進行了時域模擬分析和開環階躍響應實驗研究，得到了參數變化對響應性能指標的影響規律，為提高大功率大慣性變頻泵控馬達調速系統的性能指標提供了參考理論依據。
  3. With the analyses of the relationship figure between iri and velocity of representative road profile wavelength, the change trend between iri and vehicle velocity wasn ' t monotone increasing and was mainly affected by free vibration frequency of vehicle system

    通過分析典型路面波長國際平整度指數與行駛車速的關系圖，發現國際平整度指數與速度之間不是單調增長關系，除路面因素外，兩者之間的變化趨勢主要受車輛系統自振頻率的影響。
  4. This paper proposes a two - armed push - pull inverter, including its topologies, power distributions in every switching devices and modulation schemes. the major parameters such as thd and df of this vsi are analyzed. comparison study shows that the quality of two - armed push - pull vsi is better than those of square - wave vsi. and the switching loss is lower than that of pwm scheme at same time, especially used in wide frequency range. detailed calculating formulae and experimental results are presented

    該文介紹了一種雙臂推挽式逆變器，包括其電路拓撲、每個開關器件的功率分佈和調制策略.分析了這種電壓源逆變器的主要參數，如總諧波失真度（ thd ）和失真指數（ df ） .比較研究表明，這種逆變器的質量明顯優于方波逆變器，同時開關損耗明顯低於pwm調制方式，特別適用於寬頻范圍.介紹了計算公式和實驗結果
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