頻率器件 的英文怎麼說
中文拼音 [bīnlǜqìjiàn]
頻率器件
英文
frequency device- 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
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 件 : Ⅰ量詞(用於個體事物) piece; article; item Ⅱ名詞1. (指可以一一計算的事物) 2. (文件) letter; correspondence; paper; document
- 頻率 : frequency; rate
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The waves should be sheared waves for the anisotropic aeo device and longitudinal waves for the isotropic aeo device. geometrical relationships of anisotropic acousto - optic effect in ln crystal and kdp crystals are studied by tangent - match condition. curves of incident angle vs. abaxial angle, diffractive angle vs. abaxial angle, extreme frequency vs. abaxial angle and acousto - optic merit vs. incident angle vs. abaxial angle are systematically gained and the design parameters are also calculated
利用相切-匹配條件法研究了鈮酸鋰晶體及kdp晶體的反常聲光互作用幾何關系,系統地得到了以離軸角為自變量的各參數的計算公式及相應的關系曲線,通過數值分析方法給出了聲光優值隨中心頻率的變化曲線並給出了器件的設計參數。Under the incentive of the civil - market demanding such as laser material processing and the military - market demanding such as a new generation of laser weapon candidate and icf, diode - pumped solid laser ( dpsl ) develops rapidly worldwide. as an important application, diode - pumped intracavity - frequency - doubled laser is attached much importance in recent years, but there still remain many problems unresolved completely. in this paper, i have given some abecedarian study results on some of these problems theoretically and experimentally
因工業激光材料加工等民用市場的需求以及慣性約束聚變和作為新一代激光武器候選器件等軍方需求的推動,國際上高功率二極體泵浦固體激光器( dpsl )的研究進展迅速,作為dpsl的一個重要應用,內腔倍頻一直得到大家的重視,但仍有許多未徹底解決的問題和理論上的不完備之處,本論文擬對其中的一些問題作一初步的理論和實驗研究。Silicon carbide is becoming the most promising semiconductor material for high temperature, high frequency and high power devices because of its superior properties such as wide band gap, high breakdown field, high electronics saturation drift velocity, and high thermal conductivity
Sic材料由於具有寬禁帶、高臨界擊穿電場、高飽和電子漂移速度、較大的熱導率等優良特性,因此成為製作高溫、高頻、大功率器件的理想半導體材料。High frequency switching technique is becoming more popular in the power electronics area, the high frequency power transistors are applied in the buck - boost type chopper system. the characteristics of power mosfet and insulated gate bipolar transistors ( igbt ), some new kinds of power swithing devices, are deeply studied
高頻開關技術是當今電力電子技術發展的方向,本文研究的buck - boost斬波系統中採用了高頻功率器件,所以本文對新型開關器件? ?功率mos場效應管[ mosfet ]和絕緣門極晶體管[ igbt ]的特性進行了初步研究。High - frequency and microwave bipolar power devices have been largely applied in military and civil electronic equipment, mainly in communication, radar ( including navigation ) and electron - confrontation field
雙極高頻、微波功率器件已大量應用於軍用、民用電子設備中,其典型應用主要在通信、雷達(含導航)和電子對抗等領域。In this modulator, coplanar strips ( cps ) are used as electrodes for they support balance mode propagation of microwave, and this is a desired merit for common optical modulator. due to the miniaturized dimensions, the metallization thickness is in the order of skin depth and the conductor losses are not negligible
雖然由於金屬的趨膚效應,電場將集中在金屬表面,但在40g以上的頻率條件下,金屬的厚度和趨膚深度在一個量級,而且此時調制器帶寬受到限制的最大根源來源於金屬電極的微波損耗。In the dissertation, the rf characteristics of the periodically iris - loaded elliptical waveguide used in slow - wave structure is discussed. the structure has potential applications to high - power microwave devices and filtering networks at millimeter wave frequencies
在本論文里,我們討論了周期膜片加載橢圓波導作為慢波結構的射頻特性,這種結構有可能應用於高功率器件和毫米波段的濾波網路。Because direct torque control requires very high performance of real - time, the popular microcomputer core dsp is used as controller in the design of hardware. its high speed of running is suitable for the experiment. in the main circuit, there is a highly integrated power element : ipm as inverter, which includes seven igbt, has high switch frequency and fault diagnosis function
在本控制系統的具體實現上,由於直接轉矩控制對實時性要求很高,因此在硬體方面,採用了目前比較流行的數字信號處理器( dsp )作為系統的控制器,其處理速度高的特點正好符合本實驗的需要:在主電路中,本系統使用了集成度高的功率器件:智能功率模塊( ipm ) ,作為逆變環節,其集成了七個igbt ,實現了高開關頻率逆變以及故障診斷的功能,從而使控制系統的體積大大縮小、控制更加靈活。Due to the direct torque control requires very high performance of real - time, the popular microcomputer core dsp is used as controller in the design of hardware. its high speed of running is suitable to the experiment. in the main circuit, there is a highly integrated power element : ipm as inverter, which includes seven igbt, has high switch frequency and fault diagnosis function
在本控制系統的具體實現上,由於直接轉矩控制對實時性要求很高,因此在硬體方面,本課題採用了目前比較流行的數字信號處理器( dsp )作為本實驗的控制器,其處理速度高的特點正好符合本實驗的需要;在主電路中,本系統使用了集成度高的功率器件:智能功率模塊( ipm ) ,作為逆變環節,其集成了七個igbt ,實現了高開關頻率逆變以及故障診斷的功能,從而使控制系統的體積大大縮小、控制更加靈活。This paper researches the digital characteristics of the welding power supply and the main circuit of the full bridge high power soft - switching. nowadays, welding machines usually apply the hard - switching as the topology, which causes the problem of higher loss and lower efficiency
目前焊接逆變電源所應用的大功率電路多採用硬開關電路,這樣在功率器件導通和關斷過程中會產生很大的損耗,並且隨著逆變頻率的提高,損耗會增大,這樣就降低了焊機的效率。Constant stator magnetic linkage control frequency converter includes power devices utilizing igbt, drive circuit using three - phase drive ic with multiple protection functions. pwm signal formation circuit in the way of voltage space vector control and realized with pld ( programmable logic device ) devices and compensation for the influence of supply voltage variation and stator resistance voltage drop
其中,恆定子磁鏈控制變頻器的設計中主電路採用功率器件igbt ;驅動電路採用三相多功能集成驅動晶元; pwm脈寬調制信號產生電路採用電壓空間矢量控制方式,由pld器件實現;對電源電壓變化及電阻壓降造成的影響進行了補償。Compared with quasi - resonant, it can reduced transistor voltage stress and improved load range and stability in low frequency range. because of the structure of three - level, transistor voltage stress and filter can be reduced significantly
與傳統的準諧振變換器相比,該變換器功率器件的電壓應力大大降低,在很窄的開關頻率變化范圍內實現寬負載范圍的軟開關。In hardware design, on one hand the internal construction of international rectifier ' s power drive integration circuit are explained. on the other hand the nature and influence of parasitics in the gate drive circuit and the method of bootstrap component selection, which are frequently encountered in this field, are interpreted in detail
在硬體設計方面,論文對舵機控制器中經常出現的功率器件開關時的高頻干擾和自舉元件選取等問題進行了深入的討論,分析了浮動電壓基準( vs )負過沖的產生機理和危害,提出了具體的解決措施。Main circuit adopts the ac - dc - ac structure and uses ipm ( intelligent power module ) as main switch
主電路採用交?直?交電壓源型變頻器,功率器件採用智能功率模塊ipm 。Shenzhen luguang electronic technology co., ltd is a high - new electronic technical enterprise, which is specializing in r & d, manufacturing, and selling of various piezoelectric materials, such as piezoelectric frequency components, diodes, transistors, digital television receiver, wireless controller, etc
深圳市魯光電子科技有限公司,是一家專業研發、生產、銷售各種壓電陶瓷材料,壓電陶瓷晶體頻率元件?二極體?三極體?提供各種電路設計,模組化設計,無線控制器等各種電子產品的供應和技術應用的高新企業。Along with the technical development, drive by electric voltage of various all control the power spare part of a gao pin2 da4 and its power mold piece to appear one after another, this is various for manufacturing cleverly made and easy and convenient, the function be stable high - efficiency with the high - quality high pin switch power supply provided a condition, this power supply currently extensively used for various communication equipments, calculator is to each kind of appliance product
隨著技術的發展,以電壓驅動的各種全控型高頻大功率器件及其功率模塊相繼出現,這為製造各種小巧輕便、性能穩定的高效率和高品質高頻開關電源提供了條件,這類電源目前廣泛用於各種通訊設備、計算機乃至各類家電產品。However, these converters become more complicate. phase - shift bi - directional dc - dc converter is attractive since it operates with fixed frequency, has small voltage and current stress and can realize zvs without auxiliary switches
相移控制雙向dc - dc功率變換器因具有功率器件電壓,電流應力小,定頻工作和無須增加輔助器件即可實現功率器件的零電壓開關條件等優點而受到關注。In addition, gan has been attracted much attention as a candidate for fabrication of high temperature, high frequency and high power devices
此外, gan也是製作高溫、高頻、大功率器件的理想材料。On the basis of operating - characteristic of high - frequency and microwave bipolar power devices, this paper proposes new structures and new materials which helps to improve devices " property, detaily analyzes their distinguishing feature and function, completes corresponding experiments, and obtains important theoretical and experimental data
本文在分析雙極高頻、微波功率器件的工作特點的基礎上,提出了有利於提高器件性能的新結構和新材料,詳細分析了其特點和功能,完成了相關的實驗工作,取得了重要的理論數據和實驗數據。The material of silicon carbide ( sic ) has many good properties due to its wide bandgap. it can be applied to high - temperature, high - frequency and high - power devices
寬禁帶半導體碳化硅( sic )材料由於其本身具有各種優異特性,使得在應用於高溫、高頻、高功率器件方面具有特殊的地位。分享友人