峰值脈沖 的英文怎麼說
中文拼音 [fēngzhímàichōng]
峰值脈沖
英文
peak pulse-
By using the processing method of sliding time window, the problem of the periodicity range ambiguity is solved. meanwhile, the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method. then, the pulse width parameter which is the most important in the parameters of fmicw is analyzed. the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing. at last this thesis introduces the different signal processing methods of fmpcw and fmicw
同時利用該方法解決了fmpcw信號的由於目標距離超過雷達的最大單值測距范圍而引起的距離模糊問題。然後對fmicw波形參數中最為重要的脈沖寬度進行了分析,給出了更為嚴格的約束條件,保證了信號處理后距離譜峰值的唯一性。最後,分別介紹了fmpcw和fmicw信號的不同處理方式,並對兩者不同的時域濾波性能進行了比較,並對二者的差異進行了分析。A design adding a dc chopper after the triphase rectification was given to reduce the peak of the pulse of voltage, aiming at the characteristics that the magnitude of the rated voltage of permanent magnet synchronous motor ( pmsm ) is far below that of the power supply, also the electric parameters of the devices were given
針對專用永磁同步電機額定電壓大大低於電網電壓這一特點,為降低電機上承受的峰值脈沖電壓,設計了在三相整流之後增加一級直流斬波器並給出了相應的電氣參數。Multiple functions available : start / crater arc current, increase / decrease time, base / crest value current, pulse frequency, pulse rate, post flow time, hf welding
功能豐富:起始/收弧電流、上升/下降時間、基值電流、峰直電流、脈沖頻率、占空比、滯后關氣時間分別可調,高頻引弧。Multiple funcyions available : start / crater arc current, increase / decrease time, base, crest value current, pulse frequency, pulse rate, post flow time, hf / friction welding, water / gas cooling
功能豐富:起始/收弧電流、上升/下降時間、基值電流、峰值電流、脈沖頻率、占空比、滯后關氣時間分別可調,高頻/接觸引弧、水冷/氣冷可供選用。We apply the agrawal ' s theory model of soa, and study the temporal characteristics of the output pulse for input picosecond optical pulses with different sharpness edges passing through a semiconductor optical amplifier, and find that the peak power and the pulse width of the output pulse depend on the input pulse peak power, the sharpness degree of the input pulse edge and the bias current of soa
本文應用agrawal的關于soa理論模型,詳細研究了具有不同陡峭邊沿的皮秒超高斯光脈沖經soa后的時域特性的變化,發現輸出脈沖的峰值功率、脈沖寬度與輸入脈沖的峰值功率、輸入脈沖邊沿的陡峭程度以及soa的偏置電流密切相關。A series of multi - pulse experiments are performed at breakdown voltage up to 400kv, peak current up to 30ka with an interval of 5ms, which shows spark gap switch could be obtained good insulation recovery in several milliseconds under the condition of water dielectric pulse power modulator with low load
在擊穿電壓400kv ,峰值電流30ka ,脈寬40ns的工作參數下,採用吹氣的辦法(氣流速度30m / s ) ,使氣體火花開關多脈沖運行間隔達到5ms ,實驗結果與理論估計相符。In hardware, we choose anti - disturbance photoelectric isolative sensor, take rc filter to resolve high - frequency for anti - disturbance. in software, we adopt arithmetic of recursion mean value to collective signal values to resolve low - frequency ac and pinnacle pulse disturbance
在硬體方面,選用抗干擾能力強的光電隔離電量傳感器,並採取rc濾波抗干擾措施解決中高頻干擾問題;在軟體方面,對採集到的信號量採取遞推平均值演算法,解決低頻交流和尖峰脈沖干擾問題。Pwm converter has low efficiency at light loads and high amplitude harmonic. on the other hand, the control circuit and filter for pfm are much complex
Pwm調制模式的spic在輕載下效率較低,控制脈沖諧波峰值較大; pfm控制電路較為復雜,后續濾波器設計困難。Pulse response characteristic of a quasi - peak voltmetre
準峰值電壓表的脈沖響應特徵On the basis of a lot of experimental data based on the orthogonal test of pulse peak electric current, pulse width and pulse intermission, experimental mathematical models of electric spark forming of several sorts of materials are built up with multiple linear regression analysis
摘要用正交試驗法對電火花加工中的峰值電流、脈沖寬度、脈沖間隔進行設計,在大量實驗數據的基礎上,採用最小二乘法建立實用的多種材料的電火花加工實驗數學模型。Based on the detection principle of pyroelectric sensing elements, this paper presents a symmetrical peak detection method of continuous double plus - minus pulse signals to eliminate external interference in fixed position heat source
根據熱釋電敏感元件的探測原理,本文提出一種對正負脈沖信號和連續正負脈沖信號進行對稱峰值檢測的方法。Some researches about frequency doubling are made, and two methods to improve intensity of second frequency generation are given. we realized q - switched 532 nm laser, by using nd : gdvo4 as laser crystal, using cr4 + : yag as saturable absorber, using ktp as intra - cavity frequency doubling crystal. average power of 109mw, repetition of 40khz, pulse width of 30ns, pulse energy of 2. 6uj, peak power of 91w are obtained
4 .對倍頻理論進行研究和分析:討論兩種提高二次諧波功率密度的方一法;實驗匕在國內首次實現ld端面泵浦nd : gdvo4 / ktp ,用cr4 + : yag作為可飽和吸收片的綠光激光器,腔內倍頻得到了平均功率為109mw 、重復頻率為40khz 、脈寬為3ons 、單脈沖能量為2 . 6閃、峰值功率為glw的調q綠光輸出。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 。2 for an impulse source there shall be a peak reading instrument voltmeter connected directly to the electrode head, indicating continually the potential of the electrode with or without a grounded test wire in the chamber
脈沖火花機,電壓表直接接在試驗電極上,顯示的是測試電線沒有接地的情況下的峰值電壓。It is found that the peak power of pump pulse is important and the fourth and fifth dispersions are crucial to flatly wideband sc generation from the fiber. the results show that the higher - order nonlinear effects on sc generation can be ignored
研究結果表明,泵浦脈沖峰值功率對sc譜的產生有著重要影響,光纖的四階、五階等高階色散的綜合作用對sc譜的形成起決定因素,高階非線性效應( raman自散射和自變陡效應)的影響可以忽略。Using the variational method, analytical conditions for stationary pulse propagation in dense period fibers with strong dispersion management are deduced. the expression of initial soliton peak power is given. by employing the obtained formulas, the soliton evolution semi - analytically in various dispersion maps can be investigated. effects of the third order dispersion are also studied in this paper. the results show that imperfect dispersion slope compensation can cause pulse central position shift and even serious degradation of soliton shape
利用變分方法,推導出了在強色散管理的密集周期光纖中脈沖穩態傳輸的解析條件,並給出了初始脈沖峰值功率的表達式.運用這些公式,對各種色散管理系統中孤子的演化進行了半解析的考察.三階色散也被考慮在內.結果表明:不完善的色散斜率補償將導致脈沖中心位置的偏移甚至嚴重的孤子形狀劣化In order to investigate the influence of characteristics parameters on detonation wave in a two - phase pulse detonation engine model. the peak detonation pressures and average velocities of two - phase pulsed detonation wave produced by pde model using gasoline as fuel and air as oxidizer under various ignition frequencies and various mixture ratios are measured systematically, and the relations influencing them are analyzed
為了探索氣-液兩相脈沖爆震發動機模型內特徵參數對產生爆震波的影響規律,系統地測試了以汽油為燃料、以空氣為氧化劑的氣-液兩相脈沖爆震發動機模型在不同點火頻率及不同余氣系數下爆震波的峰值壓力以及平均爆震波速,並對其變化進行了分析。Diode pumped solid - state q - switched laser is a good source of pulse laser with high peak power and high repetition rate
而ld泵浦的固體調q激光器是產生高峰值功率脈沖激光的優質光源。Pulses in the nanosecond and subnanosecond regimes with high power and high repetition rate have wide applications in lidar, ranging, remote sensing, microsurgery, micromachining, and so on
高峰值功率、高重復頻率的納秒至幾百納秒的脈沖激光,廣泛地應用於激光雷達、激光測距、遙感遙控、微型手術和微型機械方面。The pulse - peek sampling and adc module is able to catch a single and very narrow pulse in order to sample its peek value without being influenced by other pulses or noise. the pulse - peek sampling and adc module can also adapt itself to different rising edge of pulses, so it can scale different types of explorers made by our research institute
X射線探測器定標分析系統的前端脈沖峰值採集及其轉換電路能夠實現單個快速脈沖的捕捉及對不同脈沖上升沿陡緩的適應,它對不同傳感器的放大信號特徵都有很好的適應性,對脈沖峰值采樣的結果具有很高的精度。分享友人