相差損耗 的英文怎麼說

中文拼音 [xiāngchāsǔnhào]
相差損耗 英文
phase difference loss
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 損 : Ⅰ動詞1 （減少） decrease; lose 2 （損害） harm; damage 3 [方言] （用尖刻的話挖苦人） speak sarcas...
  • 耗 : Ⅰ動1 （減損; 消耗） consume; cost 2 [方言] （拖延） waste time; dawdle Ⅱ名詞1 （壞的音信或消息） ...
  • 相差 : phase difference
  • 損耗 : 1. （損失消耗） loss; wear and tear; deterioration; waste 2. [商業] wastage; spoilage
  1. It is found that in the absence of dissipation and average photon number of the reservoir the linear entropies of the atom and the field varies with time periodically, going to zero at the disentanglement times, and the period is the same as that of bell function and the linear entropy of the total system is zero at any time. if the cavity dissipation and the average photon number of the reservoir is taken into account, the linear entropies of the atom and the field present local maxima and minima and the difference between them diminishes with time, tending to asymptotic values

    結果表明，在忽略腔損耗和熱庫的平均光子數時，原子和場的線性熵有周期性的變化，在沒有糾纏的時刻，值為0 ，此時的周期與bell函數相同，而系統的線性熵在任何時刻都為0 ；如果考慮到腔場的損耗和熱庫的平均光子數，原子和場的線性熵有局部的最大值和最小值，它們之間的差距隨時間逐漸減小，趨向一個漸進值。
  2. This movie demonstrates the phase difference and the amplitude decay of the e and h field in a very lossy medium

    本片演示高損耗介質中電和磁場的相位差及振幅衰減情形。
  3. In order to improve the behavior of transformer protection that is incomplete at present in distinguishing magnetizing inrush current from fault current, the paper puts forward a kind of new principle of transformer differential protection after analyzing the characteristic of magnetizing inrush and active power consume of transformers. this protection uses differential protection based on positive sequence active power as a criterion to discriminate internal faults from magnetizing inrush, and ratio restraint differential current protection as a signal to touch off the protection

    針對當前電力系統中變壓器保護由於勵磁涌流鑒別理論不完善而導致的誤動率相對較高的問題，論文在分析了變壓器勵磁涌流特性和有功損耗的基礎上，提出了用變壓器正序有功功率差動作為區別勵磁涌流和故障電流的判據，並以成熟的比率制動差流保護作為內外部故障判據的變壓器主保護。
  4. The tbc algorithm simulates that wave near the boundaries is plane wave, and its amplitude and direction are decided by trial and error. in this thesis, the operation principle of an awg is introduced and the structure parameters of 8x8 awg with its central wavelength 1550. 12 / 7 / n and channel spacing 3. 2nm are designed by discussing the crosstalk to neighboring waveguide, the insertion losses and losses equal, etc. this thesis employs the waveguide theories to analyze the slab waveguide and the arrayed waveguide, and offers the distributions of stable optical fields

    本文旨在設計一個中心波長為1550 . 12nm 、波長間隔為3 . 2nm的8 8awg波分復用器，通過綜合考慮相鄰波導間的最大串擾、插入損耗、通帶寬度以及各通道損耗均勻等指標來設計、優化awg的各個結構參數，如輸入、輸出波導和波導陣列中相鄰波導的間隔，平板波導的聚焦長度，波導陣列中相鄰波導的長度差等。
  5. 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 。
  6. Secondly, because of the faultiness of these algorithmic routines of dissipation factor in existence, this dissertation puts forward an improved correlation function algorithm based on wavelet analysis, and the improved algorithm focuses on two lesding aspects : one is the methods to reduce noise and distill the fundamental, the other is the means to reduce the errors resulted by frequency fluctuating

    其次針對現有介損計算方法的不足，提出了一種基於小波變換理論的改進相關函數法的介質損耗值計算方法，主要從去噪、提取基波的方法以及降低由於電網頻率波動所造成的誤差兩個方面來考慮。並對此方法進行了模擬分析和驗證了改進演算法的優越性。
  7. Finally, it takes a detailed test to the processed millimeter 4 - bit digital phase shifter. the test result is better than expectant guideline : the maximum of the phase error is 10, the insertion loss is better than 10. 74db, the return loss is more than - 14. 88db in the 33. 9ghz 34. 5ghz frequency band. the whole volume of the phase shifter is 80mm 35mm 20mm

    最後，對加工出的毫米波四位數字移相器進行了測試，測試結果完全達到了預定指標要求:在所要求的33 . 9ghz 34 . 5ghz頻帶內，最大相移誤差小於10 ，插入損耗小於10 . 74db ，輸入輸出回波損耗大於- 14 . 88db ，整個電路尺寸為80mm 35mm 20mm 。
  8. The results show that the discrepancy of resonance frequencies, between lossy resonator and corresponding lossless ( ideal ) resonator, is increased as the losses are increased and the harmonic number is decreased

    分析結果表明：諧振（或反諧振）頻率與理想無損時的相應值的偏差隨損耗的增大而增大、隨諧序的增大而減小。
  9. 3 ) < wp = 12 > using perturbation analysis, the space - correlation loss and the bearing - estimated error for finite - bandwidth incoherently distributed sources are evaluated analytically, respectively. it is disclosed that bandwidth - induced bearing bias increases monotonously with the signal ' s relative bandwidth. when the relative bandwidth is not small enough to be negligible, the spatially - only processing cannot lead to accurate bearing estimate, that is, the joint space and time processing is necessary for high - precision bearing estimation

    3 ）利用擾動分析方法，解析評價了有限帶寬引起的非相干分佈源的空間損耗及其對波達方向估計的影響；分析表明，帶寬擾動引起的方向估計偏差隨信號相對帶寬單調增加；當相對帶寬無法忽略時，為了得到高精度的波達方向估計，需要進行聯合空時處理。
  10. In developing the planar lightwave circuits, the coupling loss between a waveguide with a high refractive index difference and a single mode fiber is considered. a novel spot - size converter based on a y - branch structure is proposed and numerical simulation results indicate that it can reduce the coupling loss effectively with low polarization dependent loss and good fabrication tolerance

    在平面波導光器件研製中，提出了高折射率差二氧化硅波導與光纖的新型低損耗連接，與現有波導單側變窄的結構相比較，有效的降低了連接損耗，同時具有偏振相關損耗低，工藝容差性好的優點。
  11. The influence on phase shift, isolation and insertion loss of rotary - field phase shifter caused by mismatch and phase shift error is analysed

    本文分析了反射系數、波片相位誤差對輸出相移、隔離度及損耗的影響。
  12. It is approved that the deficiency level keeps relatively the lowest and the dielectric constant however shows the highest, if the contents of mn3 + and la3 + are comparatively the same. on the contrary, the dielectric constant decreases with increasing the contents difference of mn3 + and la3 + ions. the effect of overlap appeared when the dielectric loss was aroused due to the activation of positive and negative carries at certain temperature, which brought abnormally high dielectric loss

    證實了材料在mn ~ （ 3 + ）含量與la ~ （ 3 + ）含量相當時體系中產生的缺陷相對最少，其介電常數最大，反之隨兩者含量偏差的增大而下降；材料中由正負兩種局域載流子在一定溫度下激活過程中產生的損耗出現了迭加效應，給出了異常的高損耗值;材料中隨著mn摻量的增大，體系提供的3d電子數增多，電子輸運通道改善，導電性提高。
  13. The experience results indicated the reliability of this kind of thermostatic control system. the analysis and compare about modern dielectric loss measuring methods are presented on chapter 3, and the zero - crossing testing phase discrimination method is adapted as the measuring method of this measuring system. furthermore, applied high frequency pulse technique, channel self - correction technique, anti - harmonic technique are used to increase accuracy and reliability of measurement

    本文對現代介質損耗測量技術進行了分析與比較，採用過零鑒相比較法作為介質損耗測量方法，並結合外施高頻脈沖技術、通道自校正技術、抗諧波技術，設計了高精度介質損耗測量電路，有效提高了介質損耗測量的精度，減小了測量誤差。
  14. The paper proves that in the 2d non - linear case, the coulomb gauge is been meet naturally. in the paper, the second - order isoparametric fem is adopted in the non - linear transient magnetic field simulating excited by current source and the results of transient field and static field solved by the second - order isoparametric and linear fem are compared and analyzed, besides, the effect of the eddy currents in the magnetic materials of the different conductivity is analyzed, it is obtained that the magnetic material of high magnetic conductivity and low loss should be chosen in designing of pma

    文中採用二次等參元有限元法推導出在電流源激磁下的非線性瞬態磁場的計算方法和編制了相應的計算程序，並採用二次等參元有限元法和雙線性有限元法分別對瞬態場和靜態場進行了計算，並對計算結果進行了誤差分析，此外，還對不同電導率的導磁材料中渦流產生的影響進行了分析，得到結論設計永磁操動機構時，應選擇導磁性能好，損耗低的導磁材料。
  15. For the 32 phase states, within the frequency band of 60mhz 10mhz, the insertion loss of the phase shifter is lower than 2. 3db, the imbalance of scope is lower than 0. 3db, the phase error is better than 3. 3 degree, the input / output vswr is lower than 1. 7. physical dimension is 40mmx30mmx20mm

    實測結果表明:中頻寬帶五位數字移相器在60mhz 10mhz頻率范圍內， 32個相位狀態的插入損耗都低於2 . 3db ，幅度不平衡小於0 . 3db ，相位誤差小於3 . 3度，輸入和輸出電壓駐波比都小於1 . 7 。
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