磁方向角 的英文怎麼說
中文拼音 [cífāngxiàngjiǎo]
磁方向角
英文
magnetic bearing-
Leather seat, gasoline ( unlead engine ), 4 speed automatic transmission, china specification, air conditioner, amfm radio & cassette, 6 cd changer, dual & side air bag, 16 " 6 - hole alloy wheel, sun roof, leather seat, windshield deicer, head lamp cleaner, wide inner mirror, seat heater, deluxe package ( including sport pedal set, sport scuff plate, privacy glass, sport steering wheel, sport suspension ), abs, remote key, 1 set of tools & spare tyre, front left & right power seats
，皮座，汽油（無鉛汽油發動機） ，四擋自動變速， 16 "六孔鋁合金鈴，中國標準規格，空調， amfm收音機及磁帶機，六碟cd音向系統，雙氣囊及側面氣囊式輔助保護系統，合金鈴，天窗，真皮座椅，車頭玻璃溶雪裝置，車頭燈清洗裝置，廣角后視鏡，前排電熱座，豪華型配套（包括:跑車型金屬踏板，車門框金屬裝飾襯板，感光玻璃，跑車型單色設計方向盤，跑車懸架） ， abs ，遙控，工具及士啤呔，前左右電動座椅Materials in cityu library s prd collection include books, reports, periodicals, newspapers, press clippings, statistical year books, annual reports, pamphlets, maps, databases on either cd - roms or computer discs, microforms and other ephemeral materials in all subject areas relating to the past, current position and projected growth of the pearl river delta region of china
城市大學圖書館內的珠江三角洲特藏書庫收藏有書籍、報告、期刊、報章、剪報資料、統計年報、年報、小冊子、地圖、電腦磁碟或唯讀光盤資料數據庫、縮微膠卷，及一些零散的資料。涉及科目及范圍廣泛，舉凡有關珠江三角洲地區的過往、現在及未來的發展動向和各方面的資料，均有收納，尤以第一手及參考性資料為主。Four kinds of c / c composites with different preparation techniques were graphitized at 2400 - 2880. the relations between magneto - resistance and orientation ( the angle between surface of samples and magnetic field ), measure temperature, the intensity of magnetic field ( b ) were studied for each sample. the micro - structure and x - ray diffraction pattem were investigated too
本論文在對制備工藝不同的四種碳/碳復合材料樣品進行2400 2880的石墨化處理后，應用ppms （ physicalpropertymeasurementsystem ）研究了測試位向（試樣某特定面和磁場方向夾角） 、測量溫度以及外加磁強對材料磁電阻特性的影響，同時研究了各試樣的微觀結構和x射線衍射譜圖。Third, this thesis analyzes the angle - control theory based on half bridge converter, and proposes a new way to find the optimized angle. simulation is performed to verify the results. then, this thesis introduces the hardware and software design of the digital control system of doubly salient electro - magnetic motor, which mainly discusses the speed and current loops and angle optimization control
再次，本文介紹了角度控制與電機轉向的關系，並對基於半橋變換器的電勵磁雙凸極電動機換相角與相電流及輸出轉矩的關系進行了理論分析和模擬驗證，提出了優化電勵磁雙凸極電機換相角的方法。Firstly, on the basis of analysis of needham ' s own investigation method and premise, the paper makes a study on the various solutions to needham ' s problem both at home and abroad. with regard to its deficiencies, it further explains the possibility and feasibility of nonlinear study upon the problem and makes a philosophical analysis of the nonlinear explanation
在對李約瑟本人的研究思路和前提假設利弊評析的基礎上，對國內外「李約瑟難題」的解決方案進行了分析；進而，針對其不足，闡明了非線性研究視角轉向的可能性和現實性，並求華才嘗頤星早蓉靈「孕洶久琴磁題」劣淤鰭邏澎尹對非線性解釋進行了哲學分析。In addition to pic method, the numerical computation method is used as a compensation for the study of the characteristics of electron beam. the two methods are used separately to attain the trajectory of axially - emitted electron beam in diode region and drift region, and the trajectory of radially - emitted electron beam with axial, azimuthal, as well as compounded axial and azimuthal magnetic field. three two - dimensional codes and two three - dimensional codes have been made out to compute the trajectories
本文特點之一就是採用粒子模擬和數值計算相結合的方法進行模擬計算，分別得到了軸向發射條件下電子在二極體區域和漂移區的軌跡，徑向發射條件下電子在角向磁場、軸向磁場、角向和軸向復合磁場中電子的運動軌跡，分別編制了三個二維電子軌跡計算程序和兩個三維電子軌跡計算程序，最後將粒子模擬和數值計算得到的結果進行了對比，得到了較為滿意的結果。The thesis analyse the error and the feasibility of the system. because the precision of position and direction is related with the precision of the heading and the distance, the thesis discuss the method of obtaining the distance using milemeter, water milemeten engine ' s rotate speed and accelerometer, and the method of obtaining the heading using the combination of the gyrocompass and the digital compass. then the thesis introduce the details of the system realization, include the hardware and the software
由於航位推算的精度與航程和航向的精度直接相關，因此，論文討論了用里程計、水速表、引擎轉速或加速度計等獲取里程的方法，用航向保持器和數字磁羅盤組合的方法獲取航向角的方法（初始尋北由數字磁羅盤來完成） ，這為採用數據融合方法提高航程和航向精度打下了基礎。The magnetic distribution of a - magnet is presented by analytic way and numeric simulation way. the single particle movement is studied in a - magnet and the movement rule of charged particle in ideal four poles magnetic field also is obtained. quantificational results of the incidence angle, trajectory length and the maximal distance in x direction are presented for ideal trajectory, and the equation indicates some important characters of a - magnet
論文對-磁鐵的有關物理問題進行了較為詳細的論述，從解析形式和數值模擬兩個方面給出了-磁鐵的磁場分佈，對單個粒子在-磁鐵中的運動進行了分析，利用數值求解方法研究了帶電粒子在理想四極磁場中的運動規律，提出了歸一化運動方程和理想軌道等物理概念，定量給出了消色散的入射角、軌道長度和x方向最大距離的解析表達式。The basic working principles and characteristics of srm will be described firstly in this paper, as well as its developing survey and researching directions. and then the srd system will be separated into several function parts to be introduced respectively in details : ( 1 ) to analyze the basic characteristics of the srm including electromagnetism, current and torque of every angle field of the rotor based on the subsection - linearized inductance characteristics of stator windings and several idealized supposes. ( 2 ) how to design and realize the h - bridge converter, and the method to use it ; ( 3 ) how to design and realize the controller based on dsp ( tms320f240 ) and the control strategies, as well as the program ; ( 4 ) to introduce the monitor program running in a pc, which is programmed by delphi
本文首先介紹了srm的基本工作原理和特點以及srd系統發展概況和研究方向，然後以srd的功能構成為線索分部分進行介紹： （ 1 ） srm的特性及控制策略分析，在電感分段線性化等簡化條件下分析得出了各個轉子位置角度區間的電磁、電流和轉矩特性並分析了控制策略； （ 2 ）分析設計了h橋式功率變換器的設計和工程實現的方法，並設計了基於這種功率變換器的換相邏輯； （ 3 ）分析設計了以dsp為核心的控制器以及控制方法，並介紹了該控制器的軟硬體實現； （ 4 ）介紹了如何用delphi編制實現上位機監控程序。The electrode angle should be adjusted to a position that tends to overcome arc blow
焊絲的角度應調整至克服磁偏吹的方向In multi - channel digital magnetic record / playback heads, the angle between the parallel lines measuring gap scatter and the nominal direction of tape motion over the head assembly
在多道數字記錄讀出磁頭中，測量間隙變化的平行線與磁帶在磁頭組合件上運動的標定方向之間的夾角。In this application, the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay. in this paper, we make an intensive study of the process of de - orbiting using electro - dynamic tether system. the concrete work includes : firstly, i have studied the basic principle of how to generate the electro - dynamic drag, modeled via accuracy geomagnetism, made a concrete analysis of the de - orbiting duration, the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models, set up a counterbalance between electro - dynamic torque and gravity gradient torque, emulate the de - orbiting process of spacecraft, and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models
本文對基於電動力纜繩的航天器離軌過程進行了深入研究，具體工作如下:首先，本文研究了電動力纜繩產生電動力拉力的基本原理，建立了精確地磁場模型;分別在偶極子模型和精確地磁場模型作用下，對電動力拉力的大小、方向、離軌時間及電動力纜繩傾角的大小進行了計算分析;建立了電動力力矩與纜繩系統重力梯度力矩的平衡關系;分析了電動力力矩為系統提供能量的原理;最後分別在偶極子地磁場模型和精確地磁場模型作用下，對受電動力纜繩作用的航天器的離軌過程進行模擬，分析了在不同精度地磁場模型下，航天器離軌過程中各軌道參數的變化情況，並比較了不同模型對離軌時間的影響。The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics
採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。Spin - valve gmr is a member of gmr materials. it ' s not sensitive in a typical magnetic field intensity but it ' s very sensitive with the direction of magnetic field, and so it ' s useful in angular sensors
自旋閥gmr是gmr巨磁阻材料的一種，它在一定的磁場范圍內對外磁場的大小不敏感，但對外磁場的方向很敏感，因而在開發角度傳感器上有一定的應用價值。This article researched finite element theory by using the method of object oriented programming, designed visual software system of numerical analysis of electromagnetic fields with the science attitude, combining the method of numerical analysisof electromagnetic fields with software science
本文從計算機科學的角度出發，將電磁場數值分析方法與軟體科學相結合，研究了面向對象有限元方法的原理，設計了電磁場數值分析可視化軟體系統。Conventional magnetic field form used in welding technology including horizontal magnetic field, vertical magnetic field and sharp - angled magnetic field, mainly excited by dc, ac and pulse excitation
傳統的外加磁場形式主要包括橫向磁場，縱向磁場和尖角磁場等幾種，勵磁方式主要採用直流、交流以及脈沖勵磁等。The lightning location is calculated using the time of arrival and direction of the electromagnetic waves generated by the lightning discharges as detected by the network sensors. the network monitors lightning activities over the pearl river estuary round the clock
，利用各探測站接收閃電釋放出來的電磁波的時間及方向來計算出閃電的位置，廿四小時不停監察發生於珠江三角洲的閃電。Traditional direct torque control uses two value torque regulator which makes zero voltage vector work long and make flux shape bad seriously and makes response time long when the speed of induction motor is very low or drops down quickly. in order to solve this problem the thesis puts forward a new way to use three - value torque regulator, when the motor speed is very low or drops down quickly, the contrary voltage vector is used instead of zero voltage vector and the between the stator flux and rotor flux is reduced quickly so that torque is reduced quickly and response time becomes shorter
為此，本論文提出三點式轉矩調節，這樣當電機低速運轉或給定轉速突降時，不是加零電壓矢量，而是加反方向的電壓矢量，使定子磁鏈與轉子磁鏈之間的夾角迅速減小，從而使電磁轉矩也迅速減小，大大減小了調速時間，同時磁鏈值仍然保持基本恆定，輸出比較穩定的電磁轉矩，這在電機制動過程中非常有用。The method to correct the declination error of uav geomagnetic heading with gps and igrf is proposed, by means of which the true heading of the craft can be obtained with magnetic sensor in global scope
提出了基於gps （ globalpositionsystem ）和igrf （ internationalgeomagneticreferencefield ）的無人機磁航向地磁偏角修正方案，使無人機能夠在全球范圍內利用磁傳感器獲得子午線航向。In mass tape storage, an access mode of operation in which the rotating head rotates in a direction that is at an angle ( neither parallel nor vertical ) with the tape movement direction
在海量磁帶存儲裝置中，旋轉磁頭沿與磁帶運行方向構成某一角度（既不平行，也不垂直）的方向旋轉，以進行存取信息的一種工作方式。分享友人