電機常數 的英文怎麼說

中文拼音 [diànjīchángshǔ]
電機常數 英文
constant of the machine
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 機 : machineengine
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 電機 : （任何產生和應用電能的機器 特指發電機、電動機） any power generating or power driven machine esp ...
  1. Ionization constants of inorganic acids in aqueous solution

    無機酸水溶液的電離常數
  2. Dielectric constants of inorganic compounds

    無機化合物的介電常數
  3. Dielectric constants of organic compounds

    有機化合物的介電常數
  4. In this paper, a safe, reliable, and intellectual control plan is provided aiming at the heat charge for dwelling district, which contains epigynous machine responsible for data processing and hypogynous mahcine responsible for unlocking the valve, by means of serial communication between them, combining homemade three - channel valve, to adminstrate the charge data and the valve efficiently. the main idea is based on the homemade three - channel valve. the vavle is locked at peacetime, while it is opened with the help of open tool and a water flow in the caliduct. as soon as the flow stops, the valve locks automatically. the open tool has data in its memory, and implement function by lcd and keyborad. so it can identify data and drive motor, to open the valve intellectually. the epigynous machine database manage system administrator the dweller information, standard heat charge and payment infomation etc, including store, configure, query, print etc, then store in the memory of open tool. as a result, the plan can do well in the experiment

    此閥平時是鎖閉的，只有用開啟器配以暖氣片中的水流才可打開，一旦水流斷開，則此閥會自會鎖閉。而開啟器則是根據其存儲器中的數據配以液晶顯示及小鍵盤，完成數據確認及電機驅動，自動對相應用戶的三通閥打開特定角度，完成開啟任務。上位機數據庫管理系統完成對用戶信息、熱費標準、繳費信息等原始數據的常規管理，包括存儲、設置、查詢、列印等，最後將處理后的數據傳到開啟器中存儲。
  5. This paper analyse the feasibility and necessity of examine and repair about the qiangui co. ltd of generate electricity base on the frmework of guizhou wire network and the run state and exerience of the factory. at the same time, in the base of the lucubrate and analyse of stats examine in domestic and abroad, this paper has analyse the abrupt librate of steamer generator by online data check in pancountry power plant. it acquire obvious effect and prove the applicability and feasibility about the examine in power plant by take correspond measures to ensure the normal operate of the set

    本文根據貴州電網的結構形式以及黔桂發電有限責任公司機組的運行狀況和經驗，進行了黔桂發電有限責任公司實行狀態檢修的可行性和必要性分析，同時在深入研究分析國內外狀態檢修技術基礎上，對盤縣發電廠汽輪發電機組突發振動事例用在線檢測數據進行分析、採取相應措施處理，使機組正常運行，取得了明顯的成效，同時也證明點檢與狀態檢修在火電廠的適用性和可行性。
  6. This paper theoretically analyses the armature current and magnetomotive force in ac exciter of brushless synchronous machine with rotating rectifier. under the normal or fault conditions of rotating rectifier, the mathematical expressions of the armature current, the m. m. f and induced electromotive force are approached

    本文通過對旋轉整流器在正常與故障狀態下的交流勵磁機電樞電流和電樞電勢作了初步的理論分析，推導出旋轉整流器在正常與故障狀態下電樞電流、空間諧波合成磁勢及其感應電勢的數學表達式。
  7. The relations between piezoelectric characteristic such as piezoelectric constant, electromechanical coupling coefficient, mechanical quality factor, etc. and its components, granular diameter and manufacturing technology were studied

    研究壓電材料壓電常數、機電耦合系數、機械品質因數等特性與其組份、顆粒直徑及製作工藝過程之間的關系。
  8. So it can be used as both sensor component and driving component. pzt have better electromechanical coupling coefficient, piezoelectric constant, mechanical quality factor, curie temperature and stability, etc. so, pzt can be used widely in smart materials and structure

    與其它壓電陶瓷相比，鋯鈦酸壓電陶瓷（ pzt ）有較好的機電耦合系數、壓電常數、機械品質因數、居里溫度和穩定性等，因此， pzt能廣泛應用於智能材料結構中。
  9. But there is a main question that pvdf does not be in p phase with higher piezoelectric property, but be in other phases with lower or without piezoelectric property, thus, which can not improve distinctly piezoelectric constant d33, reduce notably dielectric spoilage ( tg5 ) and raise remarkably mechanical coupling factor ( kp ) of 0 - 3 pzt / pvdf piezoelectric composite, so these will restrict its development and application. in this paper, 0 - 3 pzt / pvdf piezoelectric composite will be prepared by room pressing - solidity, high - temperature - pressing and room - pressing techniques respectively

    由於這個壓電復合材料體系存在一個主要問題? pvdf在0 ? 3型pzt / pvdf壓電復合材料中通常不是以具有較強壓電性的相晶態形式呈現，多是以其它的相態存在，不能有效地提高0 ? 3型pzt / pvdf壓電復合材料的壓電常數d _ （ 33 ） 、降低介電損耗tg和增大機電耦合系數kp等壓電和介電性能，從而嚴重地制約它的發展和應用。
  10. Eddy - current sensor conversion circuit consist amplification circuit, band - pass filter circuit, demodulation circuit, differentiation phase and data sampling circuit. these circuits are used to convert the test signal of eddy - current sensor to discrete signal tend to process. the microprocessor system that formed of dsp chip is used to data fitting of test system, data displaying and data communicating with personal computer, etc. the interference questions of hardware design and the measure of eliminating interference signal in the subject are introduced in the last of this chapter

    硬體電路的設計主要分三大部分來實現：激勵源電路部分，由分頻電路和頻率合成電路組成，產生頻率穩定的激勵信號以確保檢測任務的正常進行；傳感器變換電路部分，由放大電路、濾波電路、檢波電路、鑒相電路和數據採集電路組成，主要將電渦流傳感器檢測線圈檢測到的信號變換成只含有被測信息的離散信號，易於后續電路處理；由dsp晶元構成的微處理系統，主要完成檢測系統的數據擬合、顯示及與主機通信等功能。
  11. This paper mainly discusses the variation of rotor time constant t2 and its influence to the system stationary and dynamic performance in electric vehicle ( ev ) drive system

    本課題針對電動汽車驅動系統的要求，主要討論了轉子時間常數的變化對于電機靜態和動態性能的影響。
  12. The paper proceeds from the transient equation for voltage and torque, analyze the electromechanic time constant of permanent - magnet dc servomotors based on the theory, and compare with the several testing methods which are used normal in the engineering, point out the difference and applying area also for the testing error which is led to possibly

    摘要為了準確評價伺服電動機的動態性能指標，從電機的電壓、轉矩平衡方程式出發，在理論上對永磁直流伺服電動機的時間常數進行了分析探討，並對工程實際中常用的幾種測試方法進行分析和比較，指出其差別和適用范圍以及可能造成的測試誤差。
  13. In the past, the establishment of dynamic mathematical model neglected iron loss generally, but iron loss exists truly

    以往建立感應電機動態數學模型時，通常忽略了電機的鐵耗，但在電機中鐵耗是真實存在的。
  14. Analysis for magnetic field of srm is very complicated since the flux waveforms in different parts of the motor vary with motor phase, stator pole and rotor number, also with the winding connections, etc, which results in the srm losses, especially iron loss calculation difficult. the temperature analysis due to the losses has become a study hot spot

    Sr電機鐵心的磁通波形不僅與電機的相數有關，還與定、轉子齒極數、定子繞組連接方式等密切相關，從而使得sr電機磁場分析很復雜，復雜的磁通密度波形導致電機損耗特別是鐵損的計算非常困難。電機的損耗又會引起電機的溫升，因此高性能的sr電機的熱分析也成為目前的研究熱點。
  15. This dissertation majorly researchs and designs full digital dc driving system with fuzzy control. it makes a scheme argumentation firstly, analyzing the pid algorithm and fuzzy control algorithm the ordinary digital pulse trigger algorithm and the double remainder method of pulse trigger in detail, and fuzzy control and the double remainder method are put forward to settle the under - mentioned problems, namely, the new viewpoint and the task having finished in this dissertation as follows : ( 1 ) in rder to overcome the influence of dc motor ' s parameter changing with time and nonlinear on the control system performance, this dissertation adopts fuzzy control as outside regulator and pi control as inside regulator in double regulators of the full digital dc motor driving system design ;. ( 2 ) aiming at the pulse trigger reliability of the ordinary d igital pulse trigger being low and leaking the pulse or the order of pulse confusion, this paper adopts the double remainder algorithm with short response time high pulse trigger reliability good adaptability and anti - jamming ; ( 3 ) this dissertation adopts tms320lf2407 which has good performance as major control chip this chip has power function with fast calculation capability, and accomplishes the software and hardware design in the dc motor driving system with fuzzy control ; ( 4 ) this dissertation also puts emphases on anti - jamming in hardware and software ; ( 5 ) after having designed the sample of full digital dc motor driving system with fuzzy control, a lot of experiments are performed to verify the performance and settles problems during experiment. the result of experiment proves the feasibility of design

    首先進行了方案論證，對模糊控制演算法和數字pid調節演算法、觸發脈沖的一般演算法和雙余演算法進行了詳細地研究分析，提出應用模糊控制和雙余法解決下述問題，即該論文主要的新見解和所完成的工作： （ 1 ）為了克服直流電機參數時變性和非線性因素對控制性能的影響，本設計中，雙閉環調速系統的外環採用模糊控制，內環採用pi控制，使系統在一定范圍內對直流電機參數變化和非線性因素影響有自適應能力； （ 2 ）針對常規數字觸發器演算法中觸發脈沖的可靠性不高，經常出現漏脈沖或是脈沖混亂的情況，本文採用雙余法，該演算法具有響應快，可靠性高，具有良好的適應性及抗干擾能力； （ 3 ）本設計中採用了速度快、功能強的tms320lf2407作為系統的主控晶元，應用該晶元完成系統的軟硬體設計： （ 4 ）本文對系統抗干擾的軟硬體措施進行了重點研究； （ 5 ）設計了具有模糊控制的全數字直流傳動系統原理樣機，並進行了試驗驗證，對試驗過程中出現的問題及時解決，最終實驗結果證明設計是可行的。
  16. Finally, the rules used to design the induction motor and set the inverter v / f curve are summarized to improve the stability of the system movement in the forth part of the dissertation, three measures are brought forward to eliminate the system low frequency oscillation. the first measure adopts pulse based dead time compensation to suppress the oscillation. as second measure, considering the motor and inverter as an integration, the discontinuous space vector modulated strategy named dpwm3 is proposed for the first time to suppress the oscillation

    措施一是在總結常用死區補償方法的基礎上，提出脈沖為基礎的死區時間補償法（ pbdtc ）對死沈陽工業大學博士學位論文區進行補償，抑制系統的低頻振蕩;措施二是從逆變器與電機的機電一體化配合更加完善的角度，首次提出採用不連續空間矢量調制策略dpwm抑制系統的低頻振蕩;措施三是通過對系統中電機參數的調節，達到抑制系統低頻振蕩的目的;最後進行了實驗驗證。
  17. It is both a theoretic and a practical project. after analyzing several identification methods, the writer put forward a method based on t - model equivalent circuit. to consider the skin effect, the writer modified the t - model equivalent circuit, adding the skin effect coefficients

    經過分析幾種常用的電機參數辨識方法，如頻響法，最小二乘法和卡爾曼濾波法等之後發現在本課題的前提條件? ?空載全電壓起動下無法進行辨識，因此藉助于電機的t型等效電路模型。
  18. In research of controlling system about the switched reluctance motor system ( srd ), there are two prominent problems, one is that it is difficult to set up accurate mathematical model of srm due to serious nonlinearity caused by double - salient structure, the other is that the previous schemes of srd are always equipped with rotor position sensor, which determines the system ' s high speed performance, reliability and cost. as a result, how to detect the position of non - position sensor rotor has become one major direction in the study o f srd

    其中較為突出的問題是： 1 ）由於sr電機的雙凸極結構，電機模型具有嚴重的非線性，使得建立sr電機的數學模型非常困難； 2 ）轉子位置傳感器的存在影響了電機控制系統的高速性能、可靠性和成本，所以研究無位置傳感器轉子位置檢測技術（或間接位置檢測技術）是開關磁阻電機系統（ srd ）系統研究的重要課題之一。
  19. In this paper, the starting process is studied by simulation thich is carried out using identification parameters and common test parameters respectively and the results are compared with that of test. it can be indicated that the running state is considered by the method of indentification parameters

    在論文中，分別利用辯識參數和常規實驗測試的參數，對復合籠條轉子感應電動機的起動過程進行模擬，將兩種模擬結果與實測結果比較，表明利用辨識的方法測取電機參數能夠考慮到運行狀態對參數的影響。
  20. According the analysis of current test methods of the three parameters, i have found that the normal test methods can not apply for automatic measurement additionally, the automatic measuring system are usually strictly kept in secrete as know - how by motor manufacturer, so the purpose of my paper is to develop a set of automatic system to measure those three methods for product detection

    常用的方法無法實現對三個電機參數的自動測試，而且國內外電機廠家都把電機參數自動測試系統作為企業技術秘密嚴加封鎖，因此本文的研究目的就是開發一套能夠一次性檢測上述三個參數的自動測試系統以適用於電機產品出廠檢測。
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