高頻微調 的英文怎麼說
中文拼音 [gāobīnwéidiào]
高頻微調
英文
high frequency fine-
Apply computer chip to control the circuit ; omron opto - elecrtonic control - ler and panasonic and mitsubishi inverter have stable performance, high precision, rapid reaction and long life - span ; the controlling plate applies tactile operation board which is handled easily ; vertical structural screen is easy to adjust the vertical printing pressure so as to ensure the quality of printing ; the frame lift is driven by electrical motor and installed with imported linear guide rails, of which the speed - adjust device, scraper and scraping blade can be adjusted within15 to 45 and can be set for many times so as to repeatedly printing with good precision and output, the flat bed is made of 2mm stain - less steel plates which are flat, smooth and indeformable ; it is also equiped with micromatic setting device in order to ensure the precision of multi - color overprint and auto air - intake device to ensure strong adsorption
採用電腦板控制電路，歐姆龍光電控制器，松下，三菱變頻器，行直穩定.精度高，反應快，壽命長，控制面板採用觸摸式操作面板，操作方便，六式結構型網版垂直升降印刷壓力可調保證印刷質量，機架升降採用電機驅動安裝進口直線導軌，刮刀、回墨刀可在15一45角調整，可設置多次，重復印刷保證產品精度.平臺板採用2毫米不銹鋼板製作，平整光滑不變形配有微調裝置，確保多色套印精度，配自動吸氣裝置，確保強有力的吸附。Any subtle change of capacitance can be measured through the method of modulation on high - frequency harmonic oscillation return circuit
電容的微小變化可通過對高頻諧振迴路調制的方法進行測量。Water dielectric pulse power modulator has been widely applied because of its merits of high energy storage density, compactness, and capability to drive low impedance high power microwave sources. research for multi - pulse operation of high power spark gap switch with high current and comprehending its physical properties are the basis to study multi - pulse operation or repetitive operation of water dielectric pulse power modulator
水介質脈沖功率調制器具有儲能密度高，結構緊湊、與低阻抗微波源較好匹配的特點，因此得到廣泛的應用，但是受到高功率、大電流氣體開關的絕緣恢復的影響，水介質等低阻抗脈沖功率調制器的重復頻率運行或多脈沖運行受到較大的限制。In active section, in order to meet performance of out put power above 10dbm, the power amplifier module of ka - band is fabricated by using hmc283 to achieve the 14db conversion gain. there are five parts that include of waveguide - to - microstrip ? mixer ? filter ? power amplifier and waveguide - to - microstrip. input signal ' s power is 10dbm, after it pass waveguide - to - microstrip, it ' s frequency is escalate from 30ghz to 35ghz
該組件由五個部分組成：功率為10dbm信號經過波導? ?微帶過渡，然後混頻，濾波將30ghz提高到35ghz濾除不需要的諧波鏡頻以及三階交調信號，為了彌補混頻濾波的變頻損耗，加一級功率放大器，此放大器採用hittle公司hmc283晶元，此上變頻放大組件完成了上變頻?濾波?放大功能。Abstract : based on the electronic focus technology development of state - of - the - art, the paper suggested a complete apparatus s cheme ofauto - focus based on sspd ( self - scanned photodiode array ) and 8098 singl e chipprocessor, giving out a focus criterion algorithm based on image high freq uencystatistics. the function of auto - focus of both reflected and transparent o pticalmicroscope was realized. meanwhile some corresponding problems such as sta bility of lightsource, step motor driving etc. were also discussed, which greatly improved the accuracy andreliability of the system
文摘:在介紹與分析了國內外電子調焦系統的技術發展與現狀的基礎上，提出了一種基於sspd （自掃描光電二極體列陣）與8098單片微處理器自動調焦的整體技術方案，給出了基於圖像高頻成分統計的聚焦判識演算法，在此基礎上實現了反射式與透射式光學顯微鏡的自動調焦，同時對系統的可靠性有關的其它相關問題如光源穩定性、步進電機驅動等問題也進行了討論。B group : when only bicuculline was microinjected into pgl, map was significantly higher ; pulse pressure, hr, respiratory pressure and frequency of respiration did not change significantly. when bic was applied into pgl with ear acupuncture in pc simultaneously, compare with the former, map was not so much high ; the time of map came back to normal level, pulse pressure, hr, respiratory pressure and frequency of respiration did not change significantly
B組： pgl單獨微量注射荷包牡丹堿（ bic ） ， map升高，而脈壓、心率、呼吸壓、呼吸頻率無明顯改變； pgl注射bic並同時電針胸肺區，與單獨注射bic相比， map升高幅度得到明顯調整；對map恢復正常的時間、脈壓、心率、呼吸壓及呼吸頻率無明顯影響。There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor
本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。The innovation in this paper is list below ( 1 ) use rectangle - shape pipeline so that the inducing electromotive force could be enhanced ; ( 2 ) use alternating current whose frequency is adjustable to induce the magnetic ; ( 3 ) make the flowmeter intelligent by use the microprocessor ; ( 4 ) finish designing the ls flowmeter with utra - low power consumption
本文的創新之處在於採用矩形測量導管大大增加微流量條件下的感應電動勢；採用輸出頻率可調的正弦波電流作為勵磁電流達到消除50hz頻干擾和減少正交干擾的目的；利用單片機等高端現代電子產品實現了電磁流量計的高度智能化及設計出真正的超低功耗的、可用干電池長期供電的ls旋轉流量計。Qpsk modulation for digital television using advanced digital signal processing technology, full compliance with dvb - s standard, the receiving end can be directly used for receiving digital satellite receiver. it must not only be able to achieve a higher utilization of the spectrum, with a strong anti - jamming and high performance. fm microwave equipment and simulation and will be good compatibility
Qpsk數字電視調制器採用了先進的數字信號處理技術，完全符合dvb - s標準，接收端可直接用數字衛星接收機進行接收。它不但能取得較高的頻譜利用率，具有很強的抗干擾性和較高的性能價格比，而且和模擬fm微波設備也能很好的兼容。The virtual cathode oscillator ( vircator ) is one of the most important devices that can produce high power microwaves. for the increasing of microwave power and the locking of operation frequency, researchers have proposed many different types of improved vircators
軸向反饋式虛陰極振蕩器主要利用反饋微波調制電子束和虛陰極，從而增大微波輸出功率、提高效率、穩定頻率、凈化模式。The numerical results of the dispersion relation show some nonlinear effects : for a fixed geometry of a waveguid, beam parameters and plasma density, the increment of the modulation parameter may lead to a slight increment of the operating frequency, however, as the modulation parameter increases further, saturation may occur and the dispersion relations are hard to be separated, it is due to the overmodulation of the microwave power, this phenomenon itself belongs to the nonlinear effects
對於一定的波導、電子注參量和等離子體密度值，等離子體調制系數的增加，使工作頻率略微升高。但是，隨著等離子體調制系數的進一步增加，色散曲線變得彼此之間不可分辨，可以認為是等離子體的過調制導致了柵的飽和。這一現象是非線性的，可見，等離子體柵和調制場中文摘要是非線性關系，等離子體柵是非線性j 。The injection - locking technology, characterized by the frequency stabilization, amplification, modulation and etc, has been widely used in the small - signal recovery, frequency synchronization, power synthesis, phase modulation and etc in the microwave, millimeter wave and higher frequency range communication and phased - array systems
注入鎖定技術具有穩頻、放大、調制等特性，已被廣泛應用於微波毫米波以及更高頻段通信和相控陣系統中的小信號恢復、頻率同步、功率合成、相位調制等。The common frequency synthesizers may not meet the demand on frequency stability and accuracy. and some of them are just desirable at a single frequency, which only can be varied in narrower spectrum
於是出現了高穩定的晶體振蕩器作為標準信號發生器，但他們的頻率往往是單一的，只能在很小的范圍微調。Abstract : since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem ， an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic
文摘:提出壓電諧振濾波器不能很好地濾除高頻諧波的問題，結合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率，從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題，提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性，具體分析了改進型雙端固支微梁靜電激勵諧振濾波器，理論推導證實基於雙端固支微梁的各階振型正交的原理，通過適當調整激振電容的間距，雙端固支微梁的高階振動模態受到很好的抑制，因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過Since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem ， an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic
提出壓電諧振濾波器不能很好地濾除高頻諧波的問題，結合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率，從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題，提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性，具體分析了改進型雙端固支微梁靜電激勵諧振濾波器，理論推導證實基於雙端固支微梁的各階振型正交的原理，通過適當調整激振電容的間距，雙端固支微梁的高階振動模態受到很好的抑制，因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過As a high band - efficiency digital modulation scheme, dvbc ( digital video broadcasting of cable ) qam ( quadrature amplitude modulation ) modulator is widely adopted in the wide - band communication area, such as hdtv broadcasting, cable modem, microwave communication, satellite communication and so on
正交幅度調制器（ qammodulator ）作為一種高頻譜利用率的數字調制方式，在高清晰度電視（ hdtv ）廣播、 cablemodem 、固定寬帶無線接入、衛星通信、數字微波傳輸等寬帶通信領域得到了廣泛應用。But its sintering temperature is so high that it cannot be sintered under 1000 with low melting point electrode materials like ag, cu etc. presently investigations about this material are mainly via glass - ceramic technique to decrease the sintering temperature and the dielectric loss is high. for the first time, this investigation manufacture a casio 3 system low dielectric and high frequency microwave dielectric ceramic via tape casting with basic material altered and additives doped
本文以casio _ 3體系為研究對象，首先對casio _ 3體系進行改性，並首次採用li _ 2o和bi _ 2o _ 3作為燒結助劑，降低體系燒結溫度，在此基礎上，採用catio _ 3調節陶瓷的頻率溫度系數，制備出微波介電性能優良的具有工業應用價值的casio _ 3系ltcc低介高頻微波介質陶瓷。It especially against music, audio and games customized corresponding audio default, the user generally very easy to use, the premium also advanced options for fine - tuning in order to achieve satisfactory results
它特別針對音樂，音頻和游戲用戶定製了相應的音效預設值，非常方便一般用戶的使用，對于高級用戶還可以調出高級選項進行微調，以達到滿意的效果。A switch ic for analog signal processing is designed and implemented, which can fulfill the functions of sampling, weighting, controlling and summing of high frequency analog signals. the circuit consists of three parts : four channel analog switches, a voltage reference and the control circuitry. each analog switch is comprised of two high - transconductance n - mosfets with high w / l ratio, which realize the fine tuning and coarse tuning of the input signal respectively
本文研究並設計了一種可對高頻信號進行取樣、加權、控制、疊加的模擬信號處理丌關集成電路，它包括模擬開關、電壓基準源和移位寄存器三個功能模塊，通過兩個高寬長比的高跨導nmos晶體管實現權值的粗調和微調。Abstract : the multifunctional inverter power sourcethe handy inverter welding, plating & charging manchine, developed with advanced inverter and micro - electronics control techniques, adopts “ half - bridge power expansion supply midpoint voltage autocontrol setting ”, and technically and effectively having solved inverter subvision of inverter power expansion circuit for leaning magnetism, reliability of high - power inverter setting, achives combination of constantcurrent and constantvoltage export, and realizes low - voltage dc and high - voltage ac double power supply
文摘:運用先進的高頻逆變技術和微電子控制技術設計研製的逆變式多功能電源便攜式逆變焊鍍充電多用機，採用「半橋式功放級供電中點電壓自動控制調節裝置」 ，在技術上解決了逆變功放電路因偏磁而造成的逆變顛覆，有效地解決了大功率逆變器的可靠性問題；進行多種外特性的綜合設定，實現了恆流與恆壓輸出的合一；與傳統焊機相比，實現了開環和閉環狀態下都互不影響的低壓直流電瓶和高壓交流雙供電分享友人