磁化法 的英文怎麼說
中文拼音 [cíhuàfǎ]
磁化法
英文
methods of magnetization-
Circumferential magnetization method
周向磁化法Realizing method of magnetization curve on dc electromotor
直流電動機磁化曲線的實現方法Fe - ni alloy fiber were first prepared in a mixed solution of ferrous and nickelous salts, using kbh4 as a reducing agent. conditions, such as quantity of naoh, concentration of salts, and species of surfactants, of preparation of fe - ni alloy were studied. the result show that fe - ni alloy were soft magnetic materials and they exhibited superparamagnetization at room temperature that have been widely used in industry
本文用液相還原法首次制備出纖維狀的fe - ni合金、球形的fe - co 、 co - ni合金、 fe - co - ni合金粉體材料,並對其性能進行了分析和測試,結果表明:這些合金粒徑小,比飽和磁化強度較大,矯頑力為零,呈現超順磁性,是非晶態的軟磁材料。Our approach differs from a recent theoretical paper that dealt with the possible conservation of the combined spin and orbital angular momentum in relation to the susceptibility of the down - conversion crystal
我們的方法與新近一些理論文章提出的方法是不一樣的,他們處理自旋角動量和軌道角動量可能的守恆當中涉及到了下轉換晶體的磁化系數。Test method for d - c magnetic properties of materials using ring and permeameter procedures with d - c electronic hysteresigraphs
使用d - c電子磁滯曲線記錄儀響鈴和磁導儀程序的材料的d - c磁化特性測試方法The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation
二、在高頻變壓器原邊,當開關管接收控制信號脈沖列(經調制的spwm波列)導通時,在低頻調制信號的正半周或負半周內,施加在變壓器繞組上的是同一方向的電壓,變壓器磁芯中的磁通可能將級進地逐漸增加,導致磁芯飽和,造成磁偏或單向磁化,導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。The regional stratigraphic petrophysiacl column, which includes density, magnetic susceptibility, remanent magnetization, electrical resistivity and chargeability, has been set up to help geophysical survey in hebei province
摘要主要介紹河北省區域地層密度、磁化率、剩磁強度、電阻率、極化率物性柱的特徵,其地層物性統計表可供河北省境內的重力、磁法、電法勘查使用。Using results of this paper and thermodynamical bethe ansatz method, one can study the thermodynamics of this model under open boundary conditions
在本文結果的基礎上,利用熱力學betheansatz方法,可進一步研究此模型的一些熱力學性質,如比熱、磁化率等。In this paper, the authors used such geophysical exploration methods as the high - precision geomagnetic method, the resistivity profiling method and the induced polarization method to synthetically study the exhausted areas of the archean sedimentary metamorphic iron mines in eastern hebei, built an effective geophysical exploration combination model for the exhausted areas, and summarized the serviceability and validity of various geophysical exploration methods in the exploration of exhausted areas under different geological settings
摘要應用高精度磁法、電阻率剖面法、激發化法等常規地球物理勘查方法對冀東地區太古宙沉積變質鐵礦采空區進行綜合研究,建立冀東鐵礦采空區有效的地球物理勘查組合模型,總結不同地質環境條件下各種地球物理勘查方法在冀東鐵礦采空區勘探中的適用性和有效性。Our efforts were taken to lay the foundation of further studies on cloning and function of new genes in fish. the construction and evalution of the a, gtlo cdna library of grass carp leukocytes are described. total rna was extracted from head - kidney leukocytes using single - step method of rna isolation by acid guanidinium thiocyanate - phenol - chloroform extraction
本文第一部分取病毒感染36小時后的草魚頭腎並分離白細胞,用改進的異硫氰酸胍一步法從其中提取總rna ,磁珠法分離純化mrna ,電泳檢測其質量。Researching into electromagnetic field by the method of numerical calculation has had in mind, but the researcher of non - linear medium electromagnetic field numerical calculation with hysteresis characteristic is slowness. the reason is that it is difficulty to acquire the magnetization characteristic with high accuracy for non - linear medium magnetic material
近幾十年來採用數值方法對電磁場進行分析以取得了豐碩的成果,但對于考慮磁滯特性的非線性介質的電磁場數值分析進行緩慢,其原因是對于非線性介質磁性材料,很難精確的獲取其磁化特性。It is the main purpose of this paper to calculate the energy splitting of ground state and excited states induced by thermally assisted quantum tunneling. first, a brief introduction is given for the theoretical and experimental studies on the magnetic macroscopic quantum effects. then, spin tunneling in a uniaxial ferromagnetic particle in transverse magnetic field is converted to a pseudoparticle moving in effective double - well potential with the help of the effective potential description of quantum spin systems developed by ulyanov and zaslavskii. finally using the periodic instanton method we evaluate the transition amplitude, energy shift and prefactor of wkb exponential and the energy splitting of ground state and the tunneling rate for excited states induced by thermally assisted quantum tunneling are obtained
文章首先對磁性宏觀量子效應的理論和實驗方面作了簡單介紹,然後藉助于ulyanov和zaslavskii發展的一種等效勢描述方法,把外磁場沿難磁化軸方向時的自旋隧穿約化成在等效雙勢阱中運動的粒子,利用瞬子方法給出基態能級劈裂,最後利用周期瞬子方法分別計算了隧穿幅、能級移動以及wkb前因子,從而給出由於熱助量子隧穿引起的激發態的隧穿率。The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed
本文對空芯動圈式直線同步電動機進行了深入細致的研究,內容包括: ( 1 )採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式(集中電流法、分佈電流法) ,同時介紹了兩種永磁電機氣隙磁場計算方法(磁荷法,直接求解拉氏方程法) ,分析各種方法的優缺點,討論電機參數對氣隙磁密的影響; ( 2 )介紹了單層同心繞組的布置方式,根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式,分析靜態力?位移特性; ( 3 )建立空芯動圈式直線永磁同步電動機動態模擬模型,模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。In this paper we put fonvard the method of introducing the light and middling lanthanon into the tb - fe - co magneto - optical materials by taking advantage of the higher saturation magnetization intensity, higher anisotropy and higher magneto - optical effect of light and middling rare - earth. moreover the law and mechanism of how the addition affect the magneto - optical property of the films were discussed
本文是在比較、總結現有關于tbfeco磁光薄膜的理論和背景研究的基礎上,利用輕、中稀土元素的高飽和磁化強度、高磁晶各向異性、高磁光效應的優點,提出在傳統的tbfeco磁光材料中摻入輕、中稀土元素的方法。In the last part of the paper, we derive the euclidean equation of motion of the magnetic vector in a theoretical magnetic film consisting of biaxial - anisotropic molecular ferromagnets, which is reduced to the 2 + 1 dimensional sine - gordon field equation in the strong anisotropy limit. we obtain various domain structures which are the static solutions of the sine - gordon field equation
最後考慮由雙軸各向異性分子磁體形成的理想無界膜,在強各向異性極限下,採用半經典近似方法,將磁化矢量的時空運動方程約化為2 + 1維sine - gordon場方程,從而得到各類疇結構。In accordance with the driving characteristics of ac driving locomotive, the working status of its traction transformer is analysed. the questions that should be considered in the traction transformer design of ac driving locomotive are mentioned. these questions are the large short - circuit impedance of traction winding, higher harmonic current, over - excitation and dc magnetization caused by large variation of the network voltage, etc. some disposal methods are given
針對交流傳動電力機車的傳動特點,對其中的牽引變壓器的工作狀態進行了分析,指出交流傳動電力機車用牽引變壓器設計時需考慮的牽引繞組的短路阻抗大、電流的高次諧波、網壓波動大可能引起的過勵磁以及直流磁化等問題,同時給出了相應的一些解決方法。Magnetic fluid shows higher saturation when it is exposed to magnetic field. in this paper, magnetic fluid is used to improve the dynamic performance of jet pipe servo valve by filling magnetic fluid in the working clearances of torque motor between armature and core
本文利用磁流體在外加磁場作用下,具有較大磁化強度的特點,提出了在力矩馬達銜鐵和鐵芯的工作氣隙中加入磁流體,利用磁流體來改善射流管伺服閥動態性能的方法。Arm at the drawback of measure theory and measure method we have deeply studied and adopted the measure method of sst and developed double yoke iron sst
通過對這兩種方法的深入研究,針對其測量原理和測量方法的缺陷採用了磁化特性的單片測量方法,並研製了雙軛鐵單片測量裝置。Current magnetization method
電流磁化法Indirect magnetization method
間接磁化法分享友人