harmonic source 中文意思是什麼

harmonic source 解釋
諧波發生器
  • harmonic : n 1 【音樂】泛音；和聲。2 〈 pl 〉【數學】諧函數，調和函數。3 【物理學】諧波，諧音。adj 1 和睦的...
  • source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
  1. Secondly, we make an in - depth study and analysis in allusion to the given oscillatory circuit - butler common base harmonic circuit. the detailed analysis of the dynatron which is the main noise source in the oscillatory circuit is also made, including how excitation affects the dynatron and crystal

    然後針對特定的振蕩電路結構-串聯型巴特勒共基振蕩電路-進行深入的研究和分析，並對主振電路中主要的噪聲源-三極體進行的深入分析，包括激勵對三極體及晶體的影響。
  2. In this paper, error sources and the relation between error source and transmission error of harmonic gear drive are deeply analyzed based on its working principle and structure. then synthesize these errors by using stochastic error theory to write out estimative formula that calculate transmission error

    本文重點對諧波齒輪傳動的運動精度進行分析研究，從諧波齒輪傳動運動誤差的產生入手，首先對誤差源進行了深入分析，然後對運動誤差進行了分析和綜合。
  3. With the third harmonic 355nm nd : yag laser as the exposal source, the lithography of su - 8 photoresist is studied

    本文採用波長為355nm的三倍頻nd : yag激光作為曝光光源，對su - 8光刻膠進行光刻研究。
  4. Mixers are the key components of many microwave and millimeter - wave systems. the super - heterodyne receiver is always applied in modern communication system, mixer becomes the key component as is at the first part of system. but it is more and more difficult to get the choiceness lo source of the same band with the system is working at high frequency especially in the millimeter - wave. sub - harmonic mixer is a good solution to this problem now. in this circuit we need just half 、 quarter 、 even 1 / 8 of the rf signal frequency. in this paper the design and fabricate of sub - harmonic hmic mixers ( 2, 4 ) at w - band are introduced

    混頻器是微波通信、射電天文學、雷達、等離子物理、遙控、遙感、電子對抗，以及許多微波測量系統中至關重要的部件。在現代通信系統中，毫米波頻段通常採用超外差接收機，混頻器作為第一級就成為關鍵部件。由於在毫米波頻段，同頻段高性能的本振源成本高，技術難度大，採用分諧波混頻技術是解決此問題的有效途徑，只需射頻頻率1 / 2 、 1 / 4甚至1 / 8的本振頻率即可實現混頻。
  5. Study on the superposing methods of multi harmonic wave source based on the matlaib power supply system

    的供電系統多諧波源疊加方法的研究
  6. Harmonic maps between riemannian manifolds are very important in both differential geometry and mathematical physics. riemannian manifold and finsler manifold are metric measure space, so we can study harmonic map between finsler manifolds by the theory of harmonic map on general metric measure space, it will be hard to study harmonic map between finsler manifolds by tensor analysis and it will be no distinctions between the theory of harmonic map on finsler manifold and that of metric measure space. harmonic map between riemannian manifold also can be viewed as the harmonic map between tangent bundles of source manifold and target manifold

    黎曼流形間的調和映射是微分幾何和數學物理的重要內容。黎曼流形和finsler流形都是度量空間，自然可利用一般度量空間調和映射的理論討論finsler流形間的調和映射。但由於控制finsler流形性質的各種張量一般情況下很難應用到一般度量空間調和映射的理論中，使得這樣的討論大都是形式上的，並與一般度量空間調和映射的理論區別不大。
  7. This paper focuses on the control strategies to improve the performance of the three - phase ac - dc pwm voltage - source - converters ( vsr ) under unbalanced power supply. the problems such as negative sequences current, voltage and current harmonics and un - constant ( un - smooth ) power flow from ac to dc side are discussed in this paper. the analytical solutions for negative sequence current and harmonic current elimination are obtained by fully feed - forward of negative sequence voltage and producing a non - harmonic current command of the inner - loop

    電網不平衡時，基於電網平衡為約束條件設計的三相vsr將出現不正常運行狀態，比如三相vsr交流電流中出現負序分量，使交流電流嚴重不對稱；直流電壓和交流電流中出現非特徵諧波分量，使直流電壓和交流電流波形發生嚴重畸變；三相vsr從電網吸收不平衡的瞬時功率等一系列問題。
  8. At first we should construct a suitable green ' s function, which is an essential solution to displacement field for an elastic half space with an arbitrary - shape - canyon impacted by antiplane harmonic line source loading at horizontal surface

    首先構造了一個適合解答本文問題的green函數，該函數為含有任意形凹陷的彈性半空間在其水平面上任意一點承受時間諧和的反平面線源荷載作用時位移場的解答。
  9. First thing is to use a suitable green " function, which is a essential solution of displacement field for the elastic half space with a half circular lining, which impacted by out - plane harmonic line source loading at horizontal surface

    求解該問題的過程中，首先利用一個適合本問題的green函數，該函數為具有半圓環形襯砌的彈性半空間在其水平表面上任意一點承受時間諧和的出平面線源荷載作用時位移場的解答。
  10. In the system, a tunable dioxide laser is used as a sensor source, and the method of wavelength modulated is adopted, then concentration of gas is determined through detecting the generated second harmonic by opto - electronics converter

    用可調諧二極體激光作為傳感光源，採用波長調制方法，通過對諧波信號進行光電探測可得氣體濃度。
  11. Different measurement standard produce the estimate for the meter ' s measurement error. the theoretic analysis shows that the non - linear load is harmonic source, and the harmonic produced by it is transformed by part of basic wave absorbed by it from power system, therefore, traditional measurement mode has some

    通過對非線性負荷的理論分析表明，作為諧波源，非線性負荷所產生的諧波是吸收基波的一部分轉化而來，從而說明傳統的計量方式具有不合理性，提出相應的解決方法和對策，並建議一種新的電能計量方式供同行研究探討。
  12. As to the video signal, alarm signal, control signal, are all weak electricity signal, exceedingly easily be subjected to the jam, in case the power supply system does not steady, wave propag ation is greatly, the harmonic content of power source overtops, the veins wave factors are great unduly, and even power source equipment breakdown, outputting abnormal, will be about to affect the video signal image effect, and dependability cuts downs to the security and alarming system. we adopt fast fu lye ' s mutation rule - fft alternatives, by the way of carrying fft alternatives to the local junction circuit, regulated power supply, ups ' s power source, and switch power source, thereby diagnose every degree harmonious wave content of power souse, and abnormal coefficient, compared to the normal working situation. thereby diagnose out the working condition of the regulated power supply, ups ' s power source, and switch power source

    如果有供電系統不穩定、波動大，電源的諧波含量過高，紋波系數過大，乃至電源設備損壞、輸出異常等情況出現，將會嚴重影響視頻信號的圖像效果，大大降低防盜系統的穩定性和可靠性，我們採用快速傅利葉變換原理，即fft變換，通過對市電、穩壓電源、 ups電源、開關電源等的電壓信號進行fft變換，從而得出信號中各次諧波的含量及信號畸變系數，並將其與正常工況下的參數進行對比，從而進一步診斷出穩壓電源、 ups電源、開關電源等設備的運行狀況；組成監控系統的設備長期處于工作狀態，往往由於設備散熱條件不好、設備老化故障等原因導致設備表面溫度過高，從而影響設備的正常運行，降低設備的使用壽命。
  13. In the hardware aspects, this text analyses the voltage - source inverter and current - source inverters. in the same time this paper gives the strongpoints and weakness of them. in order to find the best way to induce the harmonic, the paper gives three control strategy, that is the voltage - source inverter adopt space vector pwm ( svpwm ) and singual pwm ( spwm ) and three - level inverter adopt singual pwm ( spwm )

    本文在逆變器的硬體電路上分析了電壓型逆變器和電流型逆變器的特點;在控制策略方面，提出了三種方案:電壓型逆變器分別採用svpwm 、 spwm控制策略和三電平逆變器採用spwm方法。
  14. One of open problems is to study harmonic maps between finsler manifolds and derive the first and second variation formula for harmonic maps between finsler manifolds. firstly, we define harmonic map between finsler manifold. in fact, it is the harmonic map from projective sphere bundle of source manifold to the projective sphere bundle of target manifold

    運算元的第一非零特徵值凡全mk .特別地，當『 ，二二k時， m的直徑為六?當m是黎曼流形時，由moer 「定理的推論直接可知m與半徑為去的球等距
  15. We got the pl spectrum of zno nanowires using an 806nm fs laser act excited source based nonlinear optical process. the results showed the second harmonic generation ( shg ) phenomenon besides the exciton - exciton collision peak at 388nm, at

    實驗中除388nm處的激子-激子碰撞峰之外，還觀測到了二次諧波產生（ shg ）現象，另外在515nm附近觀測到了由氧空位造成的綠光發射峰。
  16. Voltage type harmonic source and series active power filter

    電壓型諧波源與串聯型有源電力濾波器
  17. The thyristor valve is the main harmonic source that creates harmonics in operation

    換流器是換流站內主要的諧波源，其在運行中會產生各種諧波。
  18. Abstract ： in this paper, the shunt active power filter can compensate the harmonics generated by the harmonic source of current source type well, and it is built into models and simulated by the power system blockset, toolbox of matlab

    摘要：並聯型有源電力濾波器可較好的補償電流源產生的諧波，利用matlab中的電力系統模擬工具箱對其進行建模與模擬。
  19. If the time harmonic source is assumed to be constant voltage, the summed pulse propagation is the impulse response along the line

    若各頻率成份之電源為定電壓，則所得時域脈波即脈沖電壓源在傳輸線上之脈沖響應。
  20. In recent years, people have being paid extensive attention to harmonic pollution produced by power electronic devices, among which rectifiers act as a great harmonic source

    近年來，電力電子裝置的諧波污染問題受到了人們的廣泛重視，其中整流器是一個很大的污染源，因為絕大多數直流電源都需要通過交流電源整流來獲取。
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