frequency controlled 中文意思是什麼

frequency controlled 解釋
調速的
  • 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. At. detail specification for cold welded seal quartz crystal units for oscillator applications - dk enclosure, 6. 0 to 25 mhz frequency range - fundamental thickness - shear mode, at - cut, for operation over wide temperature ranges non - temperature controlled - full assessment level

    振蕩器用冷焊密封石英晶體振子詳細規范. dp外殼6 . 0至25mhz頻率范圍.寬溫范圍
  2. At. detail specification for cold welded seal quartz crystal units for oscillator applications - dn, dq and dp enclosures, 17 to 75 mhz frequency range - third overtone thickness - shear mode, at - cut, for operation over narrow temperature ranges temperature controlled - full assessment level

    振蕩器用冷焊密封石英晶體振子詳細規范. dn dq和dp外殼17至75mhz頻率范圍.窄溫范圍
  3. At. detail specification for cold welded seal quartz crystal units for oscillator applications - dn, dq and dp enclosures, 50 to 125 mhz frequency range - fifth overtone thickness - shear mode, at - cut, for operation over wide temperature ranges non - temperature controlled - full assessment level

    振蕩器用冷焊密封石英晶體振子詳細規范. dn dq和dp外殼50至125mhz頻率規范.寬溫范圍
  4. At. detail specification for cold welded seal quartz crystal units for oscillator applications - dn, dq and dp enclosures, 50 to 125 mhz frequency range - fifth overtone thickness - shear mode, at - cut, for operation over narrow temperature ranges temperature controlled - full assessment level

    經質量評定的振蕩器用冷焊封石英晶體振子詳細規范. dn dq和dp外殼, 50至125mhz頻率規范.窄溫范圍
  5. At. detail specification for cold welded seal quartz crystal units for oscillator applications - dn, 47 u 2, dq and dp enclosures, 17 to 75 mhz frequency range - third overtone thickness - shear mode, at - cut, for operation over wide temperature ranges non - temperature controlled - full assessment level

    振蕩器用冷焊密封石英晶體振子詳細規范. dn 47u 2 dq和dp外殼17至75mhz頻率范圍.寬溫范圍
  6. At. detail specification for cold welded seal quartz crystal units for oscillator applications - dn, dq and dp enclosures, 0. 8 to 20 mhz and 3. 0 to 30 mhz frequency ranges - fundamental thickness - shear mode, at - cut, for operation over narrow temperature ranges temperature controlled - full assessment level

    振蕩器用冷焊密封石英晶體振子詳細規范. dn dq和dp外殼0 . 8至20mhz和3 . 0到30mhz頻率范圍.窄溫范圍
  7. Presents the energy saving principle of a frequency - controlled pump and points out the applicability of the law of similitude for centrifugal pumps and the conception of constant efficiency curves

    摘要闡述了循環水泵變頻調速的節能原理,提出離心水泵相似定律的適用性和等效率曲線概念。
  8. Electrodynamic shakers are used in most cases because they can operate over a broad frequency range with accurately controlled waveform.

    極大多數的情況下應用電動振動臺,因為它能在一定廣的頻率范圍內工作並且能準確地控制波形。
  9. So, this paper researches the principle of measuring system of insulating oil dielectric loss and volume resistivity. during the measuring process, the insulating oil must be heated and kept at 90 in 15 minutes. medium - frequency induction heating method is presented to instead of the electrical resistance furnace heating method on chapter 2, and a kind of subdivision - controlled integral - separated digital pid algorithm is designed to control the medium - frequency induction heating apparatus

    本文對恆溫控制系統進行了研究,提出了以中頻感應加熱方式取代原有的電阻爐加熱方式,設計了一種分段控制的積分分離式數字pid控制器來控制中頻感應加熱裝置,並通過通信設計將恆溫控制系統與介損及體積電阻率測試系統有機結合為一體機,實驗結果表明該恆溫控制系統完全滿足介損及體積電阻率測試中的控溫要求。
  10. Series of guowei dry - method composite machines as new product are explored with our many years ' experience, the requirement of the users. the first metal of this machine is adopted with : photo - ecectricity auto. tracking " correcting deviation equipment, magnetic powder tension control. pneumatic back pressure shifting blade, oven temperature controlled qutomatically, big roll with oil heating, coating composite pneumatic control as well as double frequency governor etc. it will make the machine with fast speed, lower voice, low polluted by air, shout consumptionfor energy, stable working etc. especially suitable for al - foil with smooth surface and no enough firming, glass paper, polyester ect. the composite material with hard strength, fireproof, anti - ventilation, anti - fatty, frozen, dudrable steam etc character. it is widely used in food, pharmacy, as well as daily articles to package

    「國偉」 、系列乾式復合機,是我廠根據多年的復合機製造經驗及結合客戶需求,開發的新產品,該機第一基材採用了「光電自動跟蹤」糾偏放卷裝置,磁粉張力控制、氣動背壓移動式刮刀、烘箱溫度分段自動控制、大輥筒導熱油加熱、上膠復合氣動控制及雙變頻調速技術,使該機具有復合速度快、噪聲低、空氣污染小、能耗低、運行平穩等特點,適宜於表面光滑的鋁箔玻璃紙聚酰胺等與聚乙烯、聚丙烯等薄膜的復合,復合薄膜具有強度高、防水、防透氣、防油脂、可冷凍、蒸煮等優點,廣泛應用冷凍食品、乾燥食品、醫藥品及日用品的包裝。
  11. 4. adopt vector frequency converter motor for traction transmission, which can be controlled with invariable line speed

    4牽引傳動採用矢量變頻電機,實現恆定線速度控制。
  12. Then novel circuit structure of bi - directional voltage mode ( based on forward converter ) inverters with high frequency link, are proposed, which is constituted of input cycloconverter, high frequency transformer, output cycloconverter, input and output filter ; the circuit topologies family of this bi - directional voltage mode inverters with high frequency link include six circuit topologies, such as push pull - full wave mode, push pull - full bridge mode, half bridge - full wave mode, half bridge - full bridge mode, full bridge - full wave mode, and full bridge - full bridge mode etc. taking full bridge - full bridge mode circuit as an example, principle of uni - polarity phase shifting controlled bi - directional voltage mode inverters with high frequency link is introduced

    本文首先論述了dc / ac逆變技術的應用前景及發展現狀。基於正激forward變換器的雙向電壓源型高頻環節逆變器電路結構,由輸入周波變換器、高頻變壓器、輸出周波變換器、以及輸入、輸出濾波器構成;雙向電壓源高頻環節逆變器電路拓撲族,包括推挽全波式、推挽橋式、半橋全波式、半橋橋式、全橋全波式、全橋橋式六種電路。
  13. 2. machine will auto stop when the shute or weft opens, or weaving is done. it has higher output, quality than four shuttle circular looms. 3. controlled main equipment speed with frequency converter

    主機變頻調速,改善起動性能,縮短定機時間,減少疵布率,節約電能和方便速度變換
  14. Therefore, the frequency - stabilised double longitudinal modes with thermoregulation were adopted. this method was realised by winding wire with high electrical resistance on to the neck of laser tube. heating was controlled by self - organised fuzzy control method

    為此,提出了增加有纏繞于激光管頸上的電阻絲輔助加熱控制環節的自四川大學博一l :學位論文組織模糊控制雙縱模熱穩頻方法。
  15. A randomized, controlled trial of antibiotic therapy or no therapy for diabetic women with asymptomatic bacteriuria and continued screening for bacteriuria eery 3 months reported, after a maximum of 3 years of followup, that antimicrobial therapy did not delay or decrease the frequency of symptomatic urinary infection, nor did it decrease the number of hospitalizations for urinary infection or other causes [ 72 ]

    一個隨機、對照試驗:抗菌治療或不治療無癥狀性菌尿的糖尿病婦女每3個月報告持續篩選菌尿,持續最長的3年,抗菌治療不能延續或減少癥狀性尿路感染的發生,也不能減少尿感的住院次數或同其他原因住院的次數。
  16. ( 8 ) by studying match between the electronic system and catalytic converter on the base of electronic controlled bypassing air system, conclusions having been gotten as follows : higher conversion efficiency of emission have gotten when a / f fluctuates at definite scope and frequency, by controlling the comparing voltage of 02 sensor, the working scope of catalytic converter can be controlled and the matching that can fulfill the high efficiency of hc, co, nox at same time has been optimized

    ( 8 )進行基於所開發的電控補氣系統上的催化器與電控系統的匹配研究,當控制系統調節空燃比在一定范圍按照一定頻率進行波動時,可以提高催化轉化器的轉化效率;通過控制氧傳感器的比較電壓,可以控制催化轉化器的工作窗口,實現排放污染物中, hc 、 co 、 nox轉化的最優匹配。
  17. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發,提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲,在調制系數0 . 1 m 0 . 5情況下,控制移相角按正弦規律變化,使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號,經過整流、濾波、低頻逆變,從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載,移相全橋具有超前橋臂零電壓開通,滯后橋臂或者零電壓開通( _ 0 )或者零電流關斷( _ 0 )的軟開關特性,而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  18. Our company owns developed production technology & equipment such as digital controlled roll grinding machine, digital controlled roll lathe, double - frequency induction thermal treatment equipment, and developed on - line inspection instrument

    公司擁有先進的生產技術裝備和健全的檢測體系,有國外引進數控軋輥磨床、國產先進的數控軋輥車床;具有國際一流水平的大型軋輥雙頻感應熱處理設備;具有先進水平的在線檢測儀器。
  19. The system is different from traditional silicon controlled dephasing method, such speedy modules as whole controlled electric and electronic equipment igbt and high frequency pwm controlling methods are employed, and the voltage of exchanging power supply of motor of beam pumping units can be controlled automatically, so there is no problem of power factor being decreased brought by silicon controlled phase single controlled, power factor in power net of beam pumping units " motor is enhanced really

    由於雙管齊下,電機電網側的功率因數得到了大大提高。與傳統的可控硅移相控制方式不同,本系統採用全控型電力電子器件igbt等快速模塊及高頻pwm控制方式,對抽油機電機的交流供電電壓進行自動控制,不存在可控硅相控角所帶來的功率因數變差的問題,真正提高了抽油機電網側的功率因數。
  20. The horizontal axis of the robot is equipped with a dynamic, frequency controlled motor and all components of the control system are directly mounted on the robot structure

    橫軸配備了變頻控制的動力馬達,所有控制系統部件都裝在機械手上。
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