流體放大器 的英文怎麼說

中文拼音 [liútǐfàngdàqì]
流體放大器 英文
fluid amplifier
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 體 : 體構詞成分。
  • 放 : releaseset freelet go
  • 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
  • 流體 : [物理學] fluid; fluor流體力學 fluid mechanics; hydromechanics; 流體生物學 hydrobiology; 流體運動學 hydrokinematics
  • 放大器 : amplifier; pantograph; lawnmower; enlarger; magnifier
  • 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
  1. Amplifier self-oscillates at a frequency depending on the velocity of the fluid.

    放大器自激振蕩的頻率就取決于流體的速度。
  2. The factors limiting the frequency band of the wide - band amplifier are introduced. through analyzing the effects of the intrinsic parameters and parasitical on the frequency characteristics, a method of improving fr of mosfet by using short channel device and making mosfet work at the saturation region through raising vgs is put forward ; the effects of different kinds of circuit configurations on the frequency characteristics and the junction voltage on the voltage pattern circuit, current pattern circuit and frequency characteristics are analyzed. according to the linear theory of transconductance which is applied in the bit circuit, the current pattern amplifier circuit, current transfer circuit and output circuit which consist of mosfet and the wide - band amplifier composed of them are put forward

    介紹了限制寬帶放大器頻帶寬度的因素，通過分析mosfet的本徵參數、寄生參數對頻率特性的影響，提出了採用短溝器件、使mosfet工作在飽和區、抬高柵源電壓等提高mosfet特徵頻率的方法；分析了不同電路組態對放大器頻率特性的影響、節點電壓對電壓模電路、電流模電路頻率特性的不同影響，根據應用於雙極晶體管電路的跨導線性原理，提出了採用mosfet構成的電流模放大電路、電流傳輸電路、輸出電路以及由它們所組成的寬帶放大器，獲得了良好的頻率響應。
  3. In the part of detector, it mainly introduces the design of liquor tubes, heater, pressurize, and thermocouple ; in the part of controller, this design uses tms320lf2407 as the cpu. the design part mainly introduces controller circuit design which mainly contains data collection circuit, prepositive magnifying circuit, a / d convert circuit, failure self - diagnosis circuit, the tms320lf2407 interface circuit, temperature control circuit, display circuit, 4 ~ 20ma standard signal output circuit ; in the software part, it mainly introduces software chart of main program and partly linearization subprogram design

    檢測器部分重點介紹了導流管的設計、加熱器的設計、密封技術的設計以及測溫電路的設計;控制器部分以tms320lf2407為核心，重點介紹了控制器電路設計，主要包括數據選擇電路、前置放大電路、 a / d轉換電路、故障自診斷電路、 tms320lf2407介面電路、控溫電路、顯示電路、 4 20ma標準信號輸出電路共八個部分;軟體設計重點介紹了主程序軟體設計及分段線性化子程序設計。
  4. Second, the results of theory analysis and simulation research show that the output of one cycle controlled bridge switching power amplifier have dc offset because of the nonideal characteristic of reset signal. the magnitude of output dc offset voltage is proportional to width of reset pulse. a voltage compensation technique is used to solve this question, and the computation formula of compensation voltage is gived. the circuit compensated and not are researched through simulation and experiment, which results show that compensated circuit solve the output dc offset effectively

    其次，理論分析和模擬研究結果表明，由於復位脈沖的非理想特性，單周控制的全橋開關功率放大器輸出端存在直流偏置問題，其大小與復位脈沖的寬度成正比。針對輸出直流偏置問題，提出了電壓補償的改進方案，給出了補償電壓的具體計算公式。對補償前和補償后的方案進行了對比模擬研究和實驗研究。
  5. But up to now, none of them are commercially available. among these technologies, wavelength converters based on cross - gain modulation, cross - phase modulation and four - wave mixing in semiconductor optical amplifier is the mainstream of research

    其中，基於半導體光放大器中的交叉增益調制、交叉相位調制和四波混頻效應的波長轉換技術是研究的主流方向。
  6. In this paper, a high accuracy ccii and transimpedance amplifier are designed firstly because they have the main influence on the current mode instrumentation amplifier

    針對讀出電路這一具體應用，本文先設計了電流模儀表放大器的兩個子電路:高精度的第二代電流傳輸器和跨阻放大器。
  7. Crystal current amplifier

    晶體電流放大器
  8. The pin silicon photodiode made by alice - china group, which has a large area and high performances, is an important part of the photon spectrometer ( pros ) pbwo4 detector read - out system on the alice experiment. the pin diode has a sensitive area of 16x17 mm2. its leakage current is lower than 5na at room temperature

    本工作研製的pin硅光電二極體的靈敏區面積為16x17mm2 ，常溫漏電流小於5na ，紫光區量子效率約為83 % ，結電容為110 - 120pf ，以及由pin光電二極體與電荷靈敏前置放大器組成的讀出系統的噪聲水平在- 25下小於527個等效噪聲電荷，並經過了長期性能穩定性的考驗
  9. In order to measure the characteristics of such semiconductor optical amplifier, we adopted a set of measurement system. this measurement system can be used to measure the characteristics of all kinds of active or inactive optical passive components. such device presents good polarization insensitivity ( < 0. 9db ), wide 3db bandwidth ( > 33nm ) at 0 - 200ma and different input signal light wavelength and power, the maximum fiber - to - fiber gain of 10db, lossless operation current of 50 - 75ma for different input signal light wavelength and power, large extinction ratio ( > 50db ) and lower noise figure ( nf ) ( < 8db )

    與張瑞英博士一起，首次利用該種有源區結構制備出偏振不靈敏半導體光放大器，並在0 - 200ma注入電流范圍內獲得33nm的3db帶寬，在不同信號波長，不同信號功率0 - 200ma的注入電流范圍內，偏振相關損耗均《 0 . 9db ，在耦合差損為7db / facet的條件下，最大fiber - to - fiher增益達10db ，無損操作電流為50 - 70ma ，消光比達50db以上，而噪聲指數則低於8db ，最小可達4 . 6db 。
  10. According to negative temperature coefficient of vbe and positive temperature coefficient of vt, a framework of band - gap voltage reference is investigated. the reference offer a source of pir, distributed three voltage, one as upper - threshold voltage of dual - threshold comparator, the other as lower - threshold voltage of comparator, the other as direct current voltage for second band - pass filter amplifier

    同時利用pnp晶體管發射結電壓的負溫度特性和發射結差值電壓的正溫度特性設計了一個帶隙基準電壓源。此帶隙基準電壓源本身作為熱釋電紅外傳感器的電源電壓，同時分壓提供雙限電壓比較器的上限電平和下限電平以及第二級帶通濾波放大器的直流電平。
  11. In the diagram, the output of the error amp is connected to the base of an npn transistor : when the error amp drives current into this transistor ' s base, it allows current to flow from collector to emitter, and that transistor in turn pulls current from the base of the pass transistor

    在這個圖里，誤差放大器的輸出端連接到了一個npn三極體的基極上：當誤差放大器輸出電流到了三極體的基極上，三極體允許電流從集電極向發射極流動，這個傳輸三極體工作時就是就是從基極吸取電流的過程。
  12. While the soa wavelength converter is operated at a bias close to the transparent condition for the assisted beam, it doesn ' t influence the gain of the soa wavelength converter

    而且當半導體光放大器操作在對此輔助光之透明電流時，此輔助光將不會影響半導體光放大器之增益。
  13. When the signal source of an op - amp contains an energizing voltage which is much higher than the op - amp supply it is common to use a diode and a current limiting resistor to protect the op - amp in the event of a sensor short - circuit

    為了防止信號源竄入高壓損壞放大器，常見的做法是在放大器輸入端到放大器電源間串接一個二極體，並且在放大器輸入端串接一個限流電阻。
  14. Using the home made device, the relationship between the 3 voltage and the heating frequency is obtained by lock - in amplifier, thus the thermal conductivity of the fluid is calculated with the least square fit method

    自行研製了流體導熱系數的測量裝置，採用鎖相放大器獲取3電壓與頻率的關系，並藉助最小二乘法，算出待測試樣的導熱系數。
  15. First and second band - gap filters amplify small signals and shift direct current voltage, which filter interference and noise by frequency. then, comparator restrains noise and interference through 700mv voltage window

    兩級帶通濾波放大器對熱釋電紅外傳感器採集人體的微弱小信號進行交流放大和直流電平的轉換，並根據頻率對噪聲和干擾進行過濾。
  16. Plane diffraction grating, logarithmic amplifier and stable constant - current source are used in the system, thus the performance of the instrument is enhanced significantly and the cost is reduced

    系統採用了平面衍射光柵、專用陣列探測器、對數放大器以及高穩定恆流源，有效地提高了儀器的整體性能，同時降低了生化分析儀的成本。
  17. Aluminum choke rings and a dorne margolin dipole antenna element, low - noise amplifier exhibit superior low - noise performance, obtaining

    流圈和一個dorne margolin偶極元件，低噪音放大器lna體現了出色的低噪音功
  18. To reduce power dissipation of the amplifier, a kind of on / off technology is used in the circuit. with a little bias current circuit to control the main bipolar transistor operation, the transistor will be in a state of on / off

    採用器件旁路小電流工作電路，實現對低噪聲放大器主要工作晶體管的控制，使該晶體管按需要分別處于工作或關斷狀態，保證了放大器的極低功耗。
  19. If the speaker needs more current ( its overall impedance drops ) then a lower amplifier output impedance will allow that current to be drawn out of the amplifier without causing much of a change in the applied voltage - and that means less distortion

    如果揚聲器需要更大電流（揚聲器的整體阻抗降低） ，那麼一個低輸出阻抗的放大器可以容許在輸出相應電流的同時，所施加的電壓變化更小，這也意味著失真更小。
  20. If the speaker needs more current ( its overall impedance drops ) then a lower amplifier output impedance will allow that current to be drawn out of the amplifier without causing much of a change in the applied voltage - and that means [ i ] less [ / i ] distortion

    如果揚聲器需要更大電流（揚聲器的整體阻抗降低） ，那麼一個低輸出阻抗的放大器可以容許在輸出相應電流的同時，所施加的電壓變化更小，這也意味著失真更小。
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