軸轉數計數器 的英文怎麼說

中文拼音 [zhóuzhuǎnshǔshǔ]
軸轉數計數器 英文
shaft revolution counter
  • : 軸Ⅰ名詞1. (圓柱形的零件) axle; shaft 2. (對稱部分的直線) axis 3. (圓柱形的纏繞器物) roller; spool Ⅱ量詞(用於纏在軸上的線以及裝裱帶軸子的字畫)
  • : 轉構詞成分。
  • : 數副詞(屢次) frequently; repeatedly
  • : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 計數 : count; tally; counting計數卡 numbered card
  1. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上,詳細介紹了dfl理論,通過比較闡明了dfl理論其本質是逆系統方法的一類,並結合具體課題推導出的模型方程將dfl理論進行了擴展,使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程,此模型方程涵蓋了電力系統中特別引人注目的幾個量- -子角、速、發電機q電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力系統簡化的學模型,並將擴展的dfl理論應用於此模型系統,結合線性二次型最優控制理論設出大型汽輪發電機的非線性綜合控制及機端電壓最優控制,通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節和基於二次型性能指標設的最優快控汽門(考慮發電機的飽和因素)進行了對比,證實了採用此種控制可以有效地提高電力系統的暫態穩定性,並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  2. During the process of measuring valve phase, the grating displacement sensor and photoelectric axis - angle encoder are applied to measure the displacement of valve and the angle of curving shaft respectively. their signals are sampled and imported into computer. then the three signals are compared to find the relationship of valve phases in order to offer the reliable measuring parameters for the researchers and quality controllers

    在氣門相位測量中,採用光柵位移傳感和光電角編碼,分別將發動機進、排氣門位移量和曲位移量的變化信號通過采樣,輸入算機,對三路信號加以比較找出氣門的相位關系,從而為設開發人員、品質控制人員提供可靠的測量參
  3. With the computer controlling the output of the digital signals and the analog signals, controls and adjusts startup, stop, turn and rotational rapidity of the transducer - electromotor and the strength of brake actuator ; installs the torque sensor on dynamical axis, and installs the encoder on non - dynamical axis of the dimensional globoidal indexing cam mechanism ; utilizes the virtual instrument language labview development the test and control system, with the computer real - time monitoring, late displays and storages the data of the test, and processes the data and analyses it

    利用算機控制字量輸出和模擬量輸出來達到控制和調節變頻電機啟停、向、速;控制制動的啟停和加載力;在弧面分度凸輪的加載和空上安裝扭矩傳感和編碼;應用虛擬儀語言labview開發試驗臺的測控軟體系統,用算機進行實時監測與事後顯示與存儲,並進行信號處理與分析。
  4. The design methods, such as the theory of mechanism dynamic design, the finite element method and the theory of fuzzy reliability etc, are introduced to study the vibration and structural parameters optimization design of the swing movable teeth drive system. the dissertation includes the following six aspects : a ), the torsional vibration dynamic model of swing movable teeth transmission system ; b ). the torsional and flexural vibrations dynamic analyzing model of swing movable teeth drive ; c )

    研究的內容包括以下六個方面: a )擺動活齒減速傳動系統扭振動的動力學建模; b )擺動活齒減速傳動系統彎、扭耦合振動的動力學分析建模; c )擺動活齒減速箱體振動的有限元模態分析; d )擺動活齒減速高速的抗共振模糊可靠性設; e )結構參對活齒傳動嚙合剛度的影響; f )擺動活齒傳動的模糊可靠性優化設
  5. Through establishing three mathematics models including the movement equation of the mechanical and electrical transmission system, the control of the load and the sliding in stable status, direct - current - brake of ac motor, this paper ascertained the range of the frequency value of drive motor and the efficiency of transmission system, calculated the efficiency of load motor in stable status and the moment of load motor in braking. this paper completed the design of the mechanical part of inertia brake test platform and provides a tool for the measurement of the inertia brake parameters

    本文還通過建立慣性制動試驗臺的包括機電傳動系統的運動方程、穩態運行時負載與差率控制、交流電動機直流制動在內的三個學模型,確定驅動電機的頻率取值范圍和傳動系統的傳動效率,驗算慣性制動穩態運行時負載電機功率和慣性制動制動時負載電機力矩,完成慣性制動試驗臺設中的機械部分,為慣性制動各參的測量提供工具。
  6. Finally, the wave equation of the electromagnetic field of this kind damper is derived from the maxwell ' s equation. the magnetic flux density at the boundary is assumed to be harmonic, so the analytical result of the wave equation is solved. when the rotor rotates, eddy currents flowing inside the conducting material field are caused

    最後,應用ahrens的電磁承簡化模型,從maxwell方程出發推導了應用於本文所述的被動式電磁阻尼的波動方程,並用傅立葉級把矩形磁場展開的諧變磁場作為磁場的邊界條件,通過求解波動方程得到磁場的解析解,從而算了阻尼子的電磁力和由渦流引起的切向力產生的阻尼附加功耗。
  7. In this thesis the author developed a method for measuring the axial and radial deformation in triaxial test by analyzing the digital image from area ccd and correcting the errors. this method is more accurate and more convennient than traditioanal techniques, and can be used to deformation measurement for unsaturated soil specimn directely

    其基本原理是利用ccd圖像傳感獲取土樣圖像信息,經圖像板採集、 a d換和預處理後送入算機進行字圖像處理,求出土樣在不同時間的徑向寬度和向高度據,並經過系統誤差的修正,從而精確得出土樣的變形量。
  8. Magnetic force pump magnet couplings " universal energy equation is educed by analyzing of demagnetization curve, ways of reverting force calculating are introduced according to the equation when inside magnet rotor have axial direction and radial displacement, circumferential moment of magnetic force has been given, magnetic force pump alnico ' s axial direction length, circumferential length, radial thickness amounts are summarized with the analyses of experiment results

    利用退磁曲線法,推導磁力泵聯能量通用公式,導出內磁子在向偏移和徑向偏置下產生的回復力算方法,周向傳動算方法,結合試驗結果,總結推薦磁力泵磁鋼向長度、周向長度、徑向厚度、磁極方法。
  9. The principal axis torsion angle, produced by torque, is converted to two channel square waves with phase difference through grating sensor. then the degree of torsion angle is measured by data collection card. finally the value of torque and the other parameters of the axis can be calculated by upper pc

    將主受扭矩作用而產生的扭角,通過光柵傳感換為兩路有相位差的方波信號,再通過據採集系統檢測出扭角的度,最後由上位pc機算出扭矩的大小和主的各種參量。
  10. The article probes into the theory of detection, analyze the magnetic bridge by the ideal mathematics model. study the ability of differentiation by the axes of the theory of magnetic bridge and design the corresponding sensor to make the converting come to reality

    本論文對該檢測原理進行了具體的探討,通過建立學模型對其進行了磁路分析,研究了磁橋路檢測原理的向解析度,且設並製作出相應的缺陷檢測傳感,實現了鋼絲繩金屬截面積損失信號向電信號的換。
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