excitation source 中文意思是什麼

excitation source 解釋
激發光源
  • excitation : n. 1. 刺激，興奮，激發，鼓舞。2. 【物理學】激發；【電學】激勵、勵磁。3. 【植物；植物學】激感（現象）。
  • 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. The combustion excitation for this more general case comes from more than one source.

    對于更一般的情況來說，燃燒激勵的來源不只一個。
  3. In order to eliminate the influences caused by temperature, electrode - polarization and autoeciousness - capacitance, the traditional instrument has added complicated circuits so that it cause such shortcomings as big error, time - retardation and a relatively small scope. through the problems caused by 2 - probe electrode and ac current source, a new measuring circuit based on the excitation of bi - directional voltage pulse and the sensor of 4 - probe electrode is proposed, using single - chip to achieve auto - temperature compensation

    作者在參閱國內外大量相關參考文獻的基礎上，從電導測試技術的原理性研究出發，分析了採用交流激勵源、兩電導電極為傳感器的傳統電導測試系統所面臨的種種問題，提出並研製了一種基於雙極性脈沖電壓激勵、以四電導電極為探頭、運用單片機進行溫度自動補償的新型電導率測量系統。
  4. Source excitation and parameter extraction for time - domain simulation of rectangular waveguides

    矩形波導時域模擬中的激勵源設置和參數提取
  5. Based on characteristics above, a new theory of “ controlling movement by moving ” is proposed, which means that controlling welding arc by moving magnetic field. a new device for generating rotating magnetic field is designed ; magnetic head and excitation power source are included

    本文基於以上幾種磁場形態和勵磁方式的特點，提出了「以動制動」的控制思想，即用動態變化的磁場來控制電弧的運動，研製了一套新型旋轉磁場發生裝置，本裝置包括磁頭裝置和勵磁電源兩部分。
  6. It is convenient for x - ray tube excited source to detect multi - component on site due to the advantages of high excitation flux, easy protection, and characteristic x - ray and continuous bremsstrahlung spectrum included in its exciting spectra

    X光管激發源具有活性強、易於防護等優點，產生的激發譜包括特徵x射線和連續的軔致射線譜，方便現場測定多元素。
  7. Multiple activation is that several piezodielectric ceramics are used as excitation sources, the neighboring piezoelectric discs used as sensors to record the propagating waves, and one piezodielectric ceramic act as both excitation source and response source, which can be used alternatively to form multipoint excitations and multipoint responses

    多激勵是指用多個壓電陶瓷做為激勵源，而且每一個壓電陶瓷都可以同時作為激勵和響應，可以輪換使用，因此是多點激勵，多點響應。
  8. By the test of three - dimensional distribution, form character, rotating frequency and magnetic field intensity of rotating magnetic field, it showed that the magnetic field produced is a highly rotating magnetic field and mainly distribute on welding arc region, rotating frequency and magnetic intensity can be regulated through excitation power source

    通過對產生磁場的空間分佈，形態特徵，以及旋轉頻率和場強大小的測試證明該磁場是一個高速旋轉的磁場空間，而且磁場主要集中分佈在焊接電弧區域內，磁場的旋轉頻率和場強大小都可以通過勵磁電源進行良好調節。
  9. The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system

    本文從麥克斯韋旋度方程出發，建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程，詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置；推導了mur一階和二階邊界條件在圓柱坐標下的差分格式；給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術；最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場，並分析了天線的一些參數的變化對天線輸入阻抗的影響，得出了一些有用的結論。
  10. Theoretically, the main work is the simulation of source excitation. by comparing the advantages and disadvantages of previous methods of source simulation, a novel simulation method of excitation source is presented. the details of the application to microstrip feed, waveguide feed and coaxial - cable feed using this simulating method are given

    在fdtd用於天線計算理論研究中本文重點研究了激勵源設置問題，比較了現有的各種激勵源設置方式的優缺點以及它們的適用范圍，在此基礎上，提出一種新的激勵源設置方法，並將其推廣到微帶線饋電、波導饋電、同軸線饋電等天線的通用饋電方式。
  11. The design of excitation power source based on principle of three phase step motor and pulse width modulation ( pwm ) technology, intelligent power model ( ipm ) is used for inverter switches, the output ac pulse used as excitation signals. the speed of rotation and magnetic intensity can be changed by regulate the exciting converted frequency and magnitude of exciting current. constant current is achieved by closed loop feed back

    勵磁電源結合步進電機原理與脈寬調制技術，選用智能功率模塊ipm作為逆變開關器件，輸出交流脈沖勵磁信號，以調節勵磁轉換頻率和勵磁電流大小為手段，實現對磁場旋轉頻率和磁場強度大小的有效調節，並通過閉環反饋實現閉環恆流控制。
  12. In former stl instruments, a laser beam with a gaussian distributed intensity was commonly used as the excitation source. nevertheless, the output of a high power laser is usually a superposition of multi - modes rather than a gaussian distribution ( tem00 ). therefore, it is very convenient to add an aperture to get a top - hat beam

    以前的表面熱透鏡裝置中，多使用高斯光束作為激勵光，但由於高功率激光器一般為多模輸出，要獲得嚴格的基模高斯光束比較困難，而平頂光束可以通過在激光器前加一定大小的光闌實現，降低了對激光光束質量的要求，更有利於實際的測量。
  13. The main works are listed as follows : ( 1 ) based on the excitation of bi - directional current pulse technique, a new measuring circuit for weak variation of resistance was proposed for electrical resistance tomography. traditional ac current source is n ' t adopted as the exciting source. through fast bi - directional current switching, the polarization effects are eliminated

    該電路主要優點如下：該電路沒有採用傳統的交流電流激勵法作為系統的設計原理，而是通過快速的正負極性電流切換來削弱直流電流激勵時激勵電極的極化效應，使通過直流法來測量氣液兩相流的電阻微弱變化成為可能。
  14. Moreover, higher sensitivity can be achieved when a top - hat beam is used as the excitation source

    且使用平頂光束作為激勵光可以提高光學薄膜微弱吸收的測量精度。
  15. Describing and specifiying the excitation source in emission spectrochemical analysis

    在發射光譜化學分析中激發源的描述和定義
  16. The influence of frequency, voltage, waveform of the excitation source and other factors in the new exciting scheme are discussed, based on which an optimum excitation scheme is presented to maximum the torque output of the machine in the low speed range

    在此基礎上，系統地分析了在單相勵磁條件下的勵磁頻率、電壓、波形等因素對電機特性的影響，並提出了最佳勵磁的方案。
  17. The ac - dc - ac voltage source inverter ( vsi ) main circuit and tms320lf2407 are selected to form high performance alternating current ( ac ) excitation system of asg in this dissertation after detail schemes argumentation

    本論文在詳細方案論證的基礎上選擇了交直交電壓型主電路和數字信號處理器tms320lf2407構成高性能的異步化同步發電機交流勵磁系統。
  18. Through optimization of excitation parameters of the glow - discharge source and calculation of the sputtering rate of the certified reference materials, a method for the quantitative surface analysis of nc - si : h film was established

    方法應用於實際摻雜納米硅薄膜樣品的分析，並將分析深度、剖析結果與表面形貌儀的結果進行了對照。
  19. The vertical delay stacked source obtains optimum matching with wall rock by controlling the charge mode and the excitation velocity, and maximum utilizes its energy. thus the seismic signal with the high frequency abundance and frequency bandwidth wide be obtained

    垂直延遲迭加震源通過控制裝藥方式和控制炸藥速度來達到與圍巖的最佳匹配，最大限度的利用其激發的能量，激發出高頻成份豐富、頻帶寬、高頻能量高的地震信號。
  20. The green ' s function for point - source excitation is also very simple in homogeneous media. however, since global basic functions like plane waves occupy the entire domain and point source excitation radiates to all directions, their evolution through a non - homogeneous medium constitutes a problem that may become at least as difficult to solve as that of the propagation of the total field

    例如dirac函數（點源）在空間域可以有精確的定位，但在傳播方向上（波數域）卻毫無確定性；而平面波（波數域的基本解）則具有精確的傳播方向，但其波前卻是無限延伸的，不具任何空間局域性。
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