最大脈率 的英文怎麼說
中文拼音 [zuìdàmàilǜ]
最大脈率
英文
maximum pulse rate-
The thermal damping is maximum for frequencies corresponding to pulsations that are somewhere between isothermal and adiabatic.
當脈動處于等溫和絕熱之間某個狀態時,相應頻率下的熱阻尼是最大的。In light of the limitation of fast fourier transform ( fft ) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test on the vibration of two - row placed units in lijiaxia hydropower station, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source
摘要基於李家峽水電站雙排機組振動的現場試驗研究,並且針對傳統頻譜分析方法傅立葉變換( fft )對于非平穩信號已力不從心這一缺陷,利用小波分析方法在時域和頻域上同時具有良好的局部化性質,通過對開停機這一典型非平穩過程信號進行小波及小波包分析,將其分解到不同頻帶內,獲取微弱信息和提取優勢頻率,並對其作振源分析,得出開停機初始時刻因水流不穩均出現強烈的振動現象,且低頻段信號能量最大,開停機過程水流脈動壓力和尾水渦帶擺動是引起定子基礎振動的主要原因。Although the flux per revolution of the optimized pumps is a little smaller than that of tatsuno combined pumps, other characteristics, such as fluctuation rate, maximum pressure angle and velocity fluctuation rate etc, are much better. the methods to cut gears are proposed in the theory for the practical produce in the future
雖然,在體積相等的條件下,優化出來的外圓弧包絡線內嚙合齒輪泵的排量略小於tatsuno組合泵的排量,但其它性能(如:流量脈動率、最大壓力角、速度波動量)都更優。A model made up of pulse compression grating pair with wavefront aberration is applied to calculate the effect of the wavefront aberration on pulse compression
理論分析結果表明:脈沖壓縮光柵系統最大波像差不大於/ 4時,脈沖壓縮比的最大變化率約為2 % 。It works at high frequency with a selectable pin outside ; the working frequency is fixed at 640k / 1. 2mhz. so far as the output signal of the single - chip ic is concerned, the maximum time proportion of its high level is 88 percent, but the minimum one is 10 percent
該控制器為pwm脈沖寬度調制方式;電路正常工作溫度范圍為- 20oc 85oc ;工作開關頻率根據外圍電路輸出電壓需要為640k / 1 . 2mhz可選;輸出信號的最大占空比為90 % ,最小占空比為10 % ,晶元主要應用於lcd電壓電源管理設備。The nonuseful loss of cavity were got by measuring the threshold of laser under the different output mirrors. the loss was caused by prague angle unmatching. 3. the pulse train with minor pulse width 22ns and frequency 23khz, peak power 3. 5kw were obtained in cr4 " : yag passively q - switch experience. the stability of pulse is 6 %
( 3 )實現了在大功率泵浦、無水冷的情況下cr ~ ( 4 + ) : yag飽和吸收體被動調q ,得到了最小脈寬為22ns 、重復頻率為23khz 、峰值功率為3 . 5kw的激光脈沖輸出,脈沖的穩定性為6 。At last, an experiential power supply was made, and a series of experiments is done. a lot of high - frequency pulse current was superposed on dcen current, modulated the welding current waveform we required and optimized the energy distribution, which satisfied the basic requirement of cathode cleaning
最後製作了一臺實驗電源,並進行了一系列的電弧實驗,通過在變極性電源電流dcen基礎上疊加一系列脈沖電流,調制出所需電流波形,實現輸出能量的最優分配,在滿足陰極清理的前提下,最大限度地提高焊接效率。The figure of daily mean value in resent year showed : the medium term anomaly with impulse jumps appeared 11 months before the event, and the maximum of anomaly was 84 times of the normal rising rate ; the short term anomaly appeared 4 - 1 month before the event, and the maximum of anomaly was 274 times of normal mean fluctuation ; the imminent anomaly appeared 9 days before the event, and the maximum of anomaly was 2. 5 times of normal mean fluctuation
年日均值圖顯示,中期異常出現在震前11個月左右,表現為脈沖式向上突跳及階躍式上升,最大異常量為日均正常上升速率的84倍;中短期異常出現在震前4個月和1個月,最大異常量為正常日均波動值的274倍;臨震異常出現在震前的第9天,震前25小時達到最高值,最大異常量為正常日均波動值的2 . 5倍。The compensator was h ( s ) = 2370s. the results of simulation showed that attenuation factor of the first order of the third control system was as much as ten times of the value of the system without controller
通過模擬表明,採用速率傳感器,在前三塊帆板上布置壓電驅動器時,一階最大衰減因子為無控時的10倍,可以使脈沖衰減時間縮短15倍。The selection rule of the hysteresis width has been developed in order to make the thd and rms value of the output voltage to be the best with high efficiency, according to the principle of pulse density modulation
根據脈沖密度調制技術的原理導出了使輸出電壓失真度最小、有效值最大,系統效率也較高的環寬取值公式。Energy distribution involves many radar ' s parameters, such as peak power of transmitter, maximum pulse width, antenna gain, rotating speed of antenna, beam width, covering range of elevation, maximum height and range and so on
能量分配牽涉到雷達系統的各種重要參數如發射機峰值功率、最大發射脈寬、天線增益、天線轉速、波束寬度、仰角覆蓋范圍、最大高度覆蓋、最大作用距離等。In addition, a calculating method of parametrically designing hydraulic motor with non - circular planetary gear is proposed aiming at maximal unit displacement and the minimal pulsation ratio by means of visual c + + 6. 0 software
此外,探討了以單位體積排量最大為設計目標,流量脈動率最小為約束條件對非圓行星齒輪液壓馬達的參數化設計方法。Then, under the condition of satisfied the output volume request, a designing method of parametrically designing hydraulic motor with multi cylindrical gear is proposed aiming at minimal cubage with by means of visual c + + 6. 0 software, a calculating method of parametrically designing hydraulic motor with non - circular planetary gear is proposed aiming at maximal unit displacement and the minimal pulsation ratio by means of visual c + + 6. 0 software, and some designing method examples are provided for verifying the accuracy and possibility of those design methods
再次,在滿足排量要求條件下,以體積小為設計目標,利用visualc + + 6 . 0軟體對圓柱多齒輪式液壓馬達進行了參數化設計軟體的開發;另外,以單位體積排量最大為設計目標,以流量脈動率最小為約束條件,利用visualc + + 6 . 0軟體對具有圓柱行星齒輪的非圓行星齒輪液壓馬達的參數化設計軟體進行了開發。C statistics : average load statistics, daily maximum load statistics, breaker operation and life statistics, service reliability statistics, reset statistics, etc
完成每日每周每月最大功率平均功率統計積分電度脈沖電度等電能量統計開關壽命統計和供電可靠性統計。This paper also presents a theoretical analyzing method for the instantaneous simulation of pulsed - preionization discharge by using pspice software, it is favorable to the optimal design of the laser discharge circuit
獲得的最大的電光轉換效率達19 。本文還發展了一種採用pspice軟體對脈沖預電離放電進行瞬態模擬的理論分析方法,有利於激光器放電電路的優化設計。The experiment with cr4 + : yag of 30 % and 63 % initial transparence was conducted in plane - convex unstable resonators and get the laser ' s fwhm and output energy are accordingly 8ns and 52mj, 18ns and 45. 7mj. it is proved that the nearer the max initial transparence is the initial transparence, the stronger intensity and smaller fwhm can be obtained cr4 + : yag crystal, which is consistent with the theoretical results. in addition, the experimental results acquired in different resonator structures and parameters are also analyzed
在平-凸非穩腔中,採用初始透過率為30和63的cr ~ ( 4 + ) yag進行實驗,得到能量和脈寬相應為52mj 、 8ns和45 . 7mj 、 18ns的調q脈沖輸出,這表明:採用初始透過率越靠近最大初始透過率的cr ~ ( 4 + ) yag ,可得到越理想的實驗結果,這與理論分析一致。The maximum average output power is 1 w, and the pulse duration is 210 ns, and the repetition rate is 47 khz, the opto - optical efficiency is 6 %, the slope efficiency is 8. 6 %
在16 . 9w的泵浦功率下,得到了最大平均輸出功率為1w ,脈沖寬度為210ns ,重復頻率47khz的532nm倍頻光。光光效率達到6 % ,斜效率達到8 . 6 % 。These mechanisms provide for maximum efficiency for high - bandwidth streams, power - management friendly implementations, and poled - style access for variable bit rate and bursty streams
這些機制提供了最大效率的高帶寬數據流、電力管理友善實現以及對可變位速率和脈沖式數據流的輪詢式訪問。This paper calculated the maximum mean velocity of wind and correspondences fluctuating wind continuous chart in duration of 100 years using greatest table sequence record in 10 minutes every month ( 3 ~ 5years ) in the basis of service life of the designed bridge and more probability
本文從實際風速時程記錄開始,利用短期( 3 5年)連續的10分鐘月最大時程記錄,在一定保證率下,按照小樣本推算極值的方法,推算100年一遇的平均風速以及在此基礎上的脈動風時程。Beoc ' s laser power controllers offer precise, stable, computerized control of beam power for cw or pulsed lasers up to 15 watts
Beoc的雷射功率穩定器可針對連續波或脈沖雷射的光束能量(最大可達15瓦) ,提供精確、穩定、電腦化的控制。分享友人