峰值功率計 的英文怎麼說
中文拼音 [fēngzhígōnglǜjì]
峰值功率計
英文
peak power meter-
Firstly it discusses the value, meaning, background and method of this topic. then it deducts the single - bubble sound pressure, spectrum of sound pressure, power spectrum. according to the real situation of traveling bubble cavitation noise around a schiebe body, the mathematical model of single - bubble collapse is selected, furthermore, the mathematical model of mass traveling bubbles without interference effect is established, and the multi - peaks and rebound phenomenon while bubbles collapse is also analyzed with statistical method
首先論證了本項研究的意義,價值,背景和方法,然後推出了單空泡輻射噪聲聲壓,聲壓譜和功率譜,針對回轉體流動泡空化噪聲的具體情況,選擇了雙指數模型作為單空泡潰滅的數學模型,進一步建立了無干涉條件下的群泡輻射噪聲的數學模型,並用統計的方法分析了空泡潰滅時的多峰值和反彈現象。The third, some groping researches are made on broadband coaxial line filter output circuit of klystron. a broadband output circuit - mode four coupling slots double - gap output cavity loaded with coaxial filter, which has a workable relative bandwidth bigger than 14 % and fits in with l - band multi - beam klystron, is designed. meanwhile some analysis of its stability and peak power capacity is made
第三,對速調管同軸線濾波器寬帶輸出迴路進行研究和探索,設計出了一個適合用於l波段多注速調管、相對帶寬超過14的四耦合槽模強耦合雙間隙腔加載同軸線濾波器輸出迴路,並對其穩定性和峰值功率容限做了一些分析。From the theoretical calculation and the experimental results, we makehe conclusion that the last cavity setup is most suitable for the wavelength tuning. we calculated the stable regions and the peak power on the sesam, at the same time, ave the beam size on the sesam and on the crystal. we achieved the q - switchedutput with a three - mirror folded - cavity after optimizing it
計算了v型腔和五鏡腔的穩區、晶體和sesam上光斑半徑、 sesam上的峰值功率密度,對腔的參數進行了優化,並做了sesam被動調q和鎖模的激光實驗,實現了v型腔調q 、五鏡腔調q的激光輸出。The official power figure reads a metric 280ps at 6, 500rpm, which is equivalent to 276hp ( 206kw ). max torque stands at 422nm ( 311ft - lb ), coming in at 3, 500rpm
官方正式公布的動力數據為280公制馬力@ 6500轉,相當於276英制馬力( 206千瓦) 。不過我們預計最終量產版的功率要大於官方公布的數據。峰值扭矩將有望達到422牛米@ 3500轉。Frequency - domain equalization. at the same time discusses some key problems in ofdm : high ratio of peak - to - average power of output signals, problem of synchronization, channel estimation, adaptive bit, power and subcarrier allocation. emphasize on channel estimation, and present a new algorithm which can filtering more interpolation errors and noise. for the sake of improve the performance of resist narrowband noise and make efficient use of the spectrum apply malvar wavelet division
同時就ofdm系統中的一些關鍵問題如峰值平均功率比( papr )太高,同步問題,通道估計,通道、比特與功率必須動態分配進行了研究,著重研究了通道估計問題並提出一種改進的方法,能濾除更多的噪聲分量和插值誤差,提高系統的性能;為了提高抗窄帶噪聲的性能和提高通道利用率,用malvar小波變換實現了不等帶寬分配。Based on this arithmetic, the high frequency characteristics of five - cavity with open boundary is calculated by the code written in fortran language. then the transit effect of five modes of five - cavity with open boundary is also calculated using code mathcad and matlab. the results show that the working mode of five - cavity transit tube oscillator is 3 / 6 mode, and the analysis of the theory are in good agreement with the simulation results
根據從基於四腔渡越時間效應的自調制出發,經過一段飄移,然後再採用雙間隙提取腔邊耦合輸出高功率微波的思路,採用粒子模擬方法優化設計出一種峰值功率為1 . 5gw ,頻率為9 . 3ghz的六腔渡越輻射振蕩器,並研究了它的一系列工作特性。The simulation results show the existence of both limits and optima for the studied parameters, related to the stable operation and the maximum efficiency, respectively. underlying the conditions that the longitudinal guiding magnetic field is 1. 8t, diode voltage is 250 kv, the impedance is 150, we got a peak power as high as 100 mw for the tm01 mode at 38ghz
經優化設計,本文給出了一個相對論亞納秒毫米波返波振蕩器的物理模型,在引導磁場為1 . 8t 、二極體電壓為250kv 、阻抗為150的情況下得到了超輻射狀態下輸出微波峰值功率為100mw 、中心頻率為38ghz 、模式為tm _ ( 01 )模的微波輻射。With various types and apertures of calorimeters, this system, which has the capacity of peak value maintenance and power integration, can perform automatically data acquisition, processing and multi - path transportation through long distance along with its good anti - disturbance faculty
該系統兼容現有的不同型號和規格的激光能量計,具有峰值保持和功率積分功能,抗干擾能力強,可實現數據自動採集、處理及長距離多點傳送。Different distribution of power loss can be worked out by mathcad software based on the formula reasoning. the result of calculation is consistent with that of the experiment, which proves that this method is right. it is pointed out through the analysis of calculating data that the key to improve efficiency at the same output power is to decrease the peak current and rms current of power switches or the on - resistance of mosfet and windings
由推導可得損耗計算公式,利用數學計算軟體計算出電路輸出從空載到410w阻性負載時損耗分佈變化,該結果與實驗數據基本相吻合,證實了這種方法的正確性;通過對計算數據的分析,指出了進一步提高效率的關鍵在於輸出相同功率時降低功率管的電流峰值和有效值,減小繞組和mosfet的導通電阻。Analytical formulas for the peak power, pulse energy, pulse width, energy extraction efficiency, repetition rate and average output power are derived
計算出了自調q脈沖的峰值功率,單脈沖能量,脈沖寬度,能量利用率,重復頻率,平均輸出功率等。At the same time, a simple channel estimator that can suppress the peak - to - average power ratio ( papr ) for ofdm system with multiple transmitter antennas is proposed, its simulation proves again the result. ( 5 ) ofdm receiver is proposed with multiple transmitter antenna and alamouti scheme
結果表明,多個獨立天線ofdm系統的性能明顯優于單天線的ofdm系統;同時還給出了一種簡單的能有效抑制峰值功率平均功率比( papr )且適于多發射天線ofdm系統的導頻符號輔助的通道估計方法,模擬結果再次證明了上述結論。The linear relation between the peak voltage and the laser energy per pulse had been deduced from the formula. basing on the linear relation, we designed laser energy / power meter
由公式還導出了感生電壓的峰值與脈沖激光能量之間的線性關系,並根據此線性關系設計了lcmo及ybco薄膜激光能量功率計。For the ld pumped self - q - switched laser, the peak power, pulse energy, pulse width and energy extraction efficiency, which have been influenced by the loss in the cavity, cavity length and the threshold absorption coefficiency of the absorber, have been calculated. then we know how to choose the parameters of the self - q - switched laser for design
根據自調q二極體泵浦固體激光器的特點,計算了腔內損耗、腔長和飽和吸收體的初始吸收系數對于峰值功率、單脈沖能量、脈沖寬度和能量利用率的影響,並由此提出了設計自調q激光器中的參數選擇規律。Based on the analysis and comparison of the peak current - injection mode and average current mode control strategies, the method of designing average current control mode pi regulator is obtained. the digital simulation of the converter has been done with the help of matlab software. the good transient and stable character of the converter is attained while rated load
在分析與比較峰值電流模式與平均值電流模式控制策略的基礎上,給出平均值電流模式pi調節器的設計方法,利用matlab軟體對變換器進行了數字模擬,證實了變換器在額定功率范圍內動、靜態特性良好;過載情況下變換器具有自動限流、保護主功率器件的特性。With an experimental system built and two different switches designed by ourselves, a serial of high - energy high - coulomb repetitive experiments were performed at voltage up to 100kv, peak current up to 85ka, charge transfer up to about 0. 6c per pulse, repetition rate up to 10hz, and single shot energy up to 5kj
建立了一個高平均功率開關實驗系統,設計和實驗了兩種實用的三電極重復頻率氣體開關。實驗獲得的最大工作參數為:工作電壓100kv ,峰值電流85ka ,電荷傳遞量0 . 6c脈沖,重復頻率10hz ,單脈沖能量5kj 。Design of peak - current control circuit for high - power soft - switch inverter
大功率弧焊逆變器峰值電流控制電路設計This dissertation researches on wavelet theory applied to information transmission, including cdma spreading code design, waveform coding in digital modulation, over - saturated multi - access communication, diversity techniques for multi - path fading channels, and peak - to - average power ratio ( papr ) reducing methods for the wavelet packet modulation signals, etc.
本文以子波理論為工具,較深入地研究了通道傳輸方面的幾個問題,內容包括cdma擴展碼的設計、數字基帶波形成形技術、過飽和多址通信、克服衰落的分集技術和減小子波包調制信號的峰值功率/平均功率比值的方法等。分享友人