速動磁鐵 的英文怎麼說
中文拼音 [sùdòngcítiě]
速動磁鐵
英文
snap magnet-
And apatite. by these analyses and comparison with general granite both in china and the world and with the granite in other au or cu belt in china, the characteristics of the granite in this area are concluded as follows. it belongs to magnetite - i or syntectic granite and has crust - mantle mixed characteristics ; it was formed mainly by crystallization differentiation of melting magma and multiphase varied intrusion ; the degree of differentiation evolvement is not high ; the granite and its enclaves p. re congenetic ; the range of temperature is about 500 - 700, the range of pressure is about 2. 50 gpa - 4. 35 gpa, and the range of oxygen fugacity ( lg fo2 ) is - 15. 53 - - 14. 00 ; most granite bodies formed before the collision of plates, and few formed after the collision of plates
通過對測試數據的分析與綜合研究，並同中國和世界一般花崗巖類以及中國主要金、銅成礦巖體的花崗巖類進行對比，得出本區花崗巖類巖石具有以下特徵：屬磁鐵礦-型或同熔型花崗巖，其巖漿物質具殼幔混源特徵：主要由熔融態巖漿經結晶分異作用，通過多期變速上侵而形成；其分異演化程度較低；寄主巖基和包體具有同源性；巖石的形成溫度范圍約為500 - 700 ，壓力大約為2 . 50gpa - 4 . 35gpa ，氧逸度值1gfo _ 2為- 15 . 53 ? 14 . 00 ；該巖帶主要形成於板塊碰撞前消減的活動板塊邊緣期，為燕山至喜馬拉雅早期的大陸邊緣火山弧環境的產物。Ndfeb magnet is mainly made of neodymium iron and boron, with excellent magnetic property abundant raw material and reasonable prices, ndfeb magnet can be used as an ideal magnet in mini - motor permanent magnetic resonance sound device magnetic suspension system, magnetic transmission machine and iatrical apparatus and etc. for ndfeb, its surface is usually treatd with some special methods. the surface treatment method include zine nickel tin silver gold plating phosphor and spray epoxy resin etc
其主要應用在微特電機、永磁儀表、電子工業、汽車工業、石油化工、核磁共振裝置、音響器材、磁懸浮系統、磁性傳動機構和磁療設備等方面。釹鐵硼磁鐵容易生銹、氧化，所以對釹鐵硼磁鐵，其表面通常需作電鍍處理，如鍍鋅、鎳、銀、金等，也可以做磷化處理或噴環氧樹脂來減慢其氧化速度。Speed controls for traction include not only electrical vehicles of horizontal transportation such as electrical trains, internal - combustion locomotives with electrical transmissions, underground metros, light fait locomotives, trolley buses, even magnetic suspension trains and electrical cars etc., but also electrical vertical traction systems such as elevators, automatic moving staircases, mine winding engines, and gantry crane trucks etc
牽引調速既包括電氣火車、電傳動的內燃機車、地下鐵道、輕軌機車、無軌電車及磁懸浮列車和電動汽車等這類水平運輸電動車輛，也包括電梯、自動電梯、礦井卷揚機和龍門吊車等電動豎直牽引系統。Based on the special property of magnetic fluid ( mf ), we fill the magnetic fluid into the working clearances of the servo valve torque motor. one side, the magnetized magnetic fluid can exert a damping torque on the torque motor armature and reduce vibration of the armature ; on the other side, it can improve the magnetic circuit efficiency of the torque motor because of the magnetic fluid ’ s larger magnetic permeability
基於磁流體所具有的特殊性質，將磁流體添加到伺服閥力矩馬達的工作間隙中，一方面磁流體被磁化后可增大銜鐵的阻尼力，減少振動;另一方面由於力矩馬達氣隙中磁導率的提高，使氣隙中的磁通量增大，力矩馬達的磁路效率和輸出扭矩將增大，因此可以提高力矩馬達的固有頻率和伺服閥的響應速度。As a new type of functional material which has been developed in recent years, rare earth - iron giant magnetostrictive materials has many advantages, such as large magnetostriction strain, high coupling coefficient, quick response, high energy density and so on, which make it have good application future in fields of precision driving and microdisplacement based on the new type of functional material, this paper uses new principles and approaches to study this kind of microdisplacement actuator and its precision driving system
稀土鐵系超磁致伸縮材料就是近年來發展起來的?種新型的功能材料，具有磁致伸縮應變大、機磁耦合系數高、響應速度快、能量密度高等優點，已在精密驅動及微位移執行器等領域顯示出良好的應用前景。本論文以這種新型的功能材料為基礎，以基於該類材料的微位移執行器及其精密驅動系統為研究對象，並採用一些新的原理和方法，為新型、高性能微位移執行器及其精密驅動系統的研究提供一個新的途徑與思路。In this thesis, the characters of the high - speed maglev transportation safe speed protection system are introduced firstly in chapter one. subsequently, the realization of the speed curve watching function that is one of the core safety functions of the maglev train ' s operation control system is discussed carefully in chapter two. in chapter three the arithmetic of the maglev train ' s safe speed curves is discussed, including the safe braking speed upper limit curve, the safe braking speed lower limit curve, the safe speed upper limit curve and the range of the maglev train ' s safe operating speed
本文首先綜述了磁浮高速鐵路系統安全速度防護系統，第二章對運行控制系統的核心防護功能?速度曲線監控功能的實現作了詳細的論述，第三章則給出了速度曲線監控功能中磁浮列車安全速度防護曲線的演算法，包括磁浮列車安全制動上限速度防護曲線、磁浮列車安全制動下限速度防護曲線、磁浮列車安全速度防護上限曲線和高速磁浮列車安全運行速度的范圍。Report back in the exhibit schedule : march 8, 2006 - 10 days am09 : march 10, 2006 - 12 days remove time : march 12, 2006 exhibitors range : car, car, motorcycle, light truck bearings, railway bearings, magnetic bearing spindle ; aviation aerospace marine bearings, rocket and satellite bearings ; industrial robot bearings, machining center and machine spindle bearings, textile machine bearings, motor bearings, and farm machinery bearings, paper machine bearings, bearings press, bearing mill, metallurgical mining, petrochemical machinery bearings, bearings sporting goods, marine rig bearing ; bearings, bearings gyroscope, high - precision bearings, high - speed bearings, linear motion bearings, needle roller bearings, thrust bearings, ultra - low - temperature bearings, special bearings, ceramic ball bearings, spherical with trophies bearing miniature bearings, quiet motor bearings, ball bearings, roller bearings, lubricating bearings corrosion resistant bearings, bearing joints ; bearing ring blank refinement, precision ball and roller crown, with nails cage
撤展時間： 2006年03月12日參展范圍：轎車汽車摩托車輕型車軸承鐵路軸承磁懸浮軸承電主軸航空航天航海軸承火箭及人造衛星軸承工業機器人軸承加工中心及機床主軸軸承紡織機軸承電機軸承農機軸承造紙機軸承印刷機軸承軋機軸承冶金礦山石油化工機械軸承體育用品軸承海洋鉆機軸承組合軸承陀螺儀軸承高精軸承高速軸承直線運動軸承滾針軸承推力軸承超低溫軸承特種專用軸承陶瓷球軸承帶座外球面軸承微型軸承靜音電機軸承球軸承滾子軸承潤滑軸承耐腐蝕軸承關節軸承軸承套圈精化毛坯精密鋼球凸度滾子帶釘保持架軸承滾動體等軸承部件。Through using for reference main research methods of high - speed wheel - rail railway line ' s main technique criteria, this paper studies main technique criteria of maglev railway line, brings forward some advised datum of magelv railway line, and puts up dynamical analysis with computer
本文主要是通過借鑒高速輪軌鐵路線路平縱斷面設計標準的主要研究方法，對高速磁浮鐵路線路平縱斷面線形和設計參數值進行研究，提出了一系列設計參數建議值，並在計算機上進行了動力學檢算。As a new kind of motor, switched reluctance motor ( srm ) has a doubly salient structure, and its windings are only mounted on the stators. these characteristics bring srm lots of virtues : solid structure, high reliability and efficiency, good fault - tolerance, low cost etc. switched reluctance driver ( srd ) combined srm with modern power electronic technology and control technology
開關磁阻電機（ srm ）作為調速電動機的新品種，採用定、轉子雙凸極鐵心結構，並且只在定子上裝有集中繞組，轉子上無繞組或永磁體，具有結構簡單堅固、運行可靠、效率高、功率變換簡單、容錯性好和成本低等優點。The high speed of the maglev train need its operation control system assure that the train is safe. when the maglev train meets any troubles, it must stop at once. at this time how to make the train safely and accurately stop at the next parking station is a problem that need to research on
高速磁浮鐵路系統是未來高速鐵路的一個發展方向，高速磁浮鐵路的超高運行速度對其運行控制系統保證列車安全運行提出了較高的要求，當高速磁浮交通系統遇到故障，磁浮列車應立即緊急制動，此時如何保證列車安全準確的停靠在輔助停車點是一個值得仔細研究的問題。Taking core loss into account has important effect to improve the torque performance of the motors " field oriented control. in this paper, the transient mathematical model of the asynchronous motor with core loss is setup. the method is proposed that minimizes the loss in a variable speed and torque at the synchronous rotating coordinate
在對損耗分析的基礎上，建立了考慮鐵損時異步電機的動態數學模型，推導出在同步旋轉坐標系下變速、變轉矩時使電機功率損耗最小的方法，並且結合矢量變換提出了基於快速轉子磁場定向的矢量控制。The system composition structure includes 8031 single chip computer, signal test ( count sensor and speed sensor ), electrical interfaces ( amplification shaping circuit, drive, relay, 8155 parallel i / o, 8279 keyboard display, d / a converter ) and executive mechanism ( electromagnet and electromotor )
系統組成結構由8031單片機、信號檢測（計數傳感器和測速傳感器） 、電氣介面（放大整形電路、驅動介面、繼電器介面、 8155并行i o介面、 8279鍵盤顯示器介面和d a轉換介面） 、執行機構（電磁鐵和電機）組成。When the velocity is changed, in order to change the amount of seeding transplant, single - chip microcomputer adjusts the frequency of electromagnet
當行走速度發生改變時，單片機改變方波的頻率，經驅動電路改變電磁鐵的吸合頻率（激振頻率） ，以達到調節擺秧量的目的。3. according to these advised datum of magelv railway line, this paper carries out dynamical analysis with computer, analyses results, and puts forward some reference suggestion
對提出的高速磁浮鐵路線路設計的參數建議值，在計算機上進行動態分析，並對計算結果進行研究，提出一些參考建議。Yet, most existing high speed on / off valves use electromagnet as their electicity - mechanism conversion element, and good performant electromagnets have to be imported from other countries, in such situation, it is difficity to make excelent high speed electromagnet valve made in our country, even if we can make good performant high speed electromagnet valve in our country, it still has the shortcoming of not high enough respond speed, too small placket and big volumeo in this thesis, a new high speed on / off valve is developed based on two types of existing valves, this new valve has higher respond speed, a little big placket and little volume o for the new valve, several main task was made out as below : a ) several types of high speed on / off were first analyzed, then the basic performance of the actuator of the new valve was analyzed
高速開關閥是20世紀80年代發展起來的一種具有響應速度快、抗污染能力強、與電子電路配合好等特點的一個良好的動力放大元件。但是現有的高速開關閥基本上採用電磁鐵為電?機轉換元件，高性能的電磁鐵又基本為進口，難以滿足高性能高速開關閥國產化的要求，即使是高性能的電磁鐵式高速開關閥，仍存在著響應速度不夠大、開口過小、體積較大的缺點。本文在現有兩種高速開關閥的基礎上，設計了一種新穎的高速開關閥，在提高其動態性能的同時，增大了閥的開口，減小了閥的體積。According to the model : - " body " - organizational structure, " flow " - organizational learning and " magnetic field " - organizational culture - to accumulate the structure capital. the organizational knowledge will be accumulate with the spiral type by organizational learning. if we look the resource as scrap iron, the organizational culture will be the magnetic field in which the scrap iron to be magnetized
結構資本的積累以「體?流?場」模型進行分析，體?組織結構，通過組織結構的改進為結構資本的積累搭建一個更好的平臺:流?組織學習，其目的是使企業結構資本以螺旋式積累;場?組織文化，如果說組織中的資源猶如鐵屑，則組織文化就是磁場了，其作用就是通過培育匹配的組織文化使鐵屑掉進磁場立即被磁化產生磁力，它是組織學習的推動力，是釋放人力資本的加速器。Abstract : replacing the traditional data - input method with the graph - inputtechnique will simplify and accelerate the preprocessing procedure of the finite element calculation of electromagnetic fields. taking the translational electromagnet for example, such technique and a set of softwares are introduced
文摘:用圖形可視化輸入方式代替數據輸入可大大簡化並加速電磁場有限元計算的前處理過程，以直動式電磁鐵為例，介紹了可視化技術並對前處理軟體開發做了初步探討分享友人