熱磁系數 的英文怎麼說
中文拼音 [rècíxìshǔ]
熱磁系數
英文
magnetic temperature coefficient-
The relations between relative measurementerror resulting from temperature and heat distensibility coefficient of coil ’ s framework andwindingcoilwerecarriedout. theinfluenceofelectromagnetisminterferenceontheaccuracyof rogowski coil, as well as the effect of temperature on integraph, were studied. somemeasures based on the above investigating results were proposed to insure the precision ofrogowski coil sensor head, such as the selection of materials and facture methods, improvment of technics and design of additional compensation
利用建立的rogowski線圈的數學模型對溫度和外界干擾磁場的影響進行了分析，得出了溫度造成的相對誤差與線圈骨架和繞組線圈熱膨脹系數之間的關系;從兩個方向上分析了干擾磁場對線圈精度的影響;分析了溫度對積分器的影響等。Thirdly, the paper discusses the driver of the peripheral equipment, how to port the uc / os - n and uclinux, h. 323 protocol and the application of the system in the digital speech classroom. also some software and hardware measure are adopted to enhance the system stability. at last, the shortcoming and the something to be improved are given. dsp can be used to realize real - time speech coding algorithm, and after porting ( ac / os - n, arm can manage the keyboard, the lcd and the ethernet peripheral etc. then the embedded network system with specific purpose can be used in others fields, such as pda, set of top, web tv, ect
在實際設計實現中，為提高系統軟、硬體整體穩定性和可靠性，使用了以下幾種方法： （ 1 ）低電壓復位、抗電源抖動能力、增加時鐘監測電路、抗電磁干擾能力、散熱等技術； （ 2 ）多層pcb設計，線路板結構緊湊，電源部分採用數字5v 、 3 . 3v 、 3v 、 1 . 8v和模擬5v多電源供電； （ 3 ）選用表面貼和bga封裝的器件； （ 4 ）按照軟體工程的要求進行系統分析，規劃系統框圖、流程分析、模塊劃分，減小了不同模塊的相關性，從而最大限度避免了錯誤的發生。After studying the relation of distributive function and density matrix, the electron energy is calculated in magnetic field according to the distributive function in the thermodynamic statistical physics and the density matrix average value principle in the quantum mechanics, respectively
摘要研究正則系綜中的配分函數與密度矩陣的關系，分別採用熱力學統計物理中的配分函數和量子力學中的密度矩陣與平均值原理，計算電子在磁場中的能量。The entropy or number of states of system or subsystem are closely related to interaction of particles and energy level distribution, therefore, to study the temperature dependence of the specific heat may supply some important and useful microscopic information which may play an important role in understanding electronic structure, density of state, phonon spectrum etc. the specific heat measurements at low temperatures also play important roles in the finding of the third law of thermodynamics, the quantum theory of solid and bcs theory for superconducting etc. moreover, specific heat measurements help us to understand the different kinds of phase transitions ( such as : structural phase transition, magnetic phase transition, superconducting phase transition etc. ) and the scaling behavior near the critical point
系統、子系統的熵或微觀狀態數與微觀粒子間的相互作用及能級分佈密切相關，因此研究比熱與溫度的依賴關系能夠提供被測量系統許多極其有用的微觀信息，對理解固體的電子結構、電子態密度、聲子譜等起著十分重要的作用。低溫比熱的測量和研究對熱力學第三定律、固體量子理論和超導bcs等理論的建立起到了積極的推動作用。比熱研究還有助於認識各類相變如結構相變，磁性相變，超導相變等及臨界點附近的標度規律。But difficulty in maths will come forth when meeting high spin particles if we using such method. on base of the characteristic of energy space, we obtained the wavefunctions and geometric phase by the trial function method in this paper. the berry phase of the system are also obtained after an evolution period
文中在絕熱近似下根據自旋粒子能級間隔特點用嘗試波函數法求出了旋轉磁場中高自旋粒子系統的波函數及幾何相位，解決了用一般方法求解時出現高階微分方程的困難。The paper establishes mathematics model of electromagnetic heating system of eddy current field and temperature field, and gives corresponding discrete format with elements as eight nodes, hexahedron equal cell, through calculating eddy - current field to gain the internal heat source that the temperature field needed, to use discrete method to solve the problem of induction - heating part ' s temperature field by axial symmetrical electromagnetic, and then to analyze the characteristic of instantaneous temperature field
本文建立了電磁加熱系統的渦流場和溫度場間接耦合的數學模型，分析了不同頻率下渦流和溫度的分佈情況，並以八節點六面體等參元為例給出了渦流場對應的離散格式，通過計算渦流場獲得溫度場所需要的內熱源強度，加熱部件的溫度場以軸對稱格式進行離散求解，並對瞬態溫度場有限單元法的求解特點進行了分析。General model c38 dc meters are portable taut - band suspended moving coil instruments with light - spot indication. the meters have the feature of extremely high in sensitity and small in consumpition being particularly suitable to be used for measuring weak electric quantity on dc circututs, also for testing the static paramenters of transistors as well for measuring the output of millivolt values of zhermocouple in the vacuun furnaces ( or hydrogen furnaces )
C38型直流電表是磁電系張絲支承光點指示可攜式電表儀表具有極高的靈敏度，功耗小，特別適合弱電量直流電路測量及晶體管靜態參數測試用以及用做真空爐（或氧氣爐）中測量熱電偶的輸出毫伏值Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system
該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。In the dissertation, the study on carbon fiber reinforced concrete ( cfrc ) and plain concrete has been reviewed. then mechano - electric effect of cfrc and plain concrete, its mechanisms, the interaction among mechano - electric effect, piezoresistivity and seebeck effect, the electrical circuit model of concrete based on mechano - electric effect, electromagnetic emission of concrete, the mathematical model of mechano - electric effect are investigated. also the converse effect of mechano - electric effect of cfrc and plain concrete, that is, electromechanical effect, and the interaction between electromechanical effect and electrothermal effect of cfrc are examined
本文對碳纖維混凝土和素混凝土機敏性的國內外研究現狀進行了全面的評述，在大量實驗分析的基礎上，系統地研究了碳纖維混凝土和素混凝土的力電機敏性，研究了力電效應機理、力電效應與其它效應（壓阻效應、塞貝克效應等）的耦合關系、基於力電效應的混凝土電學模型、混凝土電磁發射現象、混凝土力電效應的數學模型等；論文同時對混凝土和素混凝土的電力效應、碳纖維混凝土電力效應與電熱效應的耦合關系等進行了探討；最後開展了基於力電效應的機敏混凝土結構應用研究。Our experiments emphasized the correlation between micro structures and some properties of the coatings and tried to obtain the protective coatings with the comprehensively good properties, in which auger electron spectroscopy ( aes ), scanning electron microscope ( sem ), and x - ray diffraction ( xrd ) were employed to investigate the composition, microstructure and crystal phase of the coatings respectively, and the properties test was primarily considered with the wear resistance and corrosion resistance of the coatings
本論文主要採用pvd技術中的磁控濺射鍍膜（ ms或rms ）及部分用等離子噴塗（ ps ）和熱氧化（ to ）表面處理技術研究了鈾的具有代表性的三種防腐保護鍍層，即單質al 、氧化物al _ 2o _ 3和合金al - zn鍍層。實驗力圖在制備技術、工藝參數及鍍層的微結構和性能之間找到一些內在的聯系，探索綜合性能較好的防腐蝕鍍層。Starting with automation system, this paper, firstly, outlines the status of sensor lying in automation field and its developing state, shows the superiority about eddy current test by comparing it with the other nondestructive tests, expatiates the modern developing state about eddy current technology both here and there, shows the vista about eddy current test in our country and the background of the subject about the test for the width and thickness of stripe in the in - wall of cylinder after laser thermal treatment. secondly, beginning with maxwell equation in electromagnetic field theory and combining with some electromagnetic phenomena in real life, this paper explains qualitatively the operating principle about eddy current technology and the test theory for multi - parameter test with multi - frequency by math illation and gives some applying occasions about it
通過同其它幾種無損檢測技術的比較，給出了電渦流技術的優越性，闡述了國內外電渦流技術的發展現狀，展望了我國電渦流技術發展的未來，給出了汽缸內壁激光熱處理條紋厚度與寬度的檢測這個課題的背景；然後從電磁場理論中的麥克斯韋方程出發，通過一系列的數學嚴密推導，並結合現實生活中的一些電磁現象，定性地解釋了電渦流技術的原理，以及電渦流傳感器多頻率多參數的檢測原理，給出了電渦流技術的部分應用場合，以及電渦流檢測的等效電路。Temperature measurement techniques for microfluids in capillary and microfluidic systems are reviewed, including exterior contact methods, fluid physical - parameter - based methods, thermo - sensitive marker methods, nmr and raman spectrometric methods, and laser - based interface measurement technique
摘要綜述了近年來應用於毛細管和微流控系統中的各種微流體測溫技術，包括外部接觸測溫、依據液體物理參數變化測溫、基於熱敏物質測溫、核磁共振和拉曼光譜測溫以及基於激光的界面測溫，並對各種測量方法和優缺點進行了討論。By a large amount of calculations, the influence of the structure dimensions and the dielectric parameters on dispersion characteristic and coupling impedance of this kind of slow - wave structure is obtained. then, the linear beam - wave interaction theories of the arbitrarily - shaped helical groove waveguide and the dielectric into the arbitrarily - shaped helical groove waveguide are deduced. by the numerical calculations, the relationship is got between the small signal gain, bandwidth, electromagnetic " hot " velocity and the electronic beam, the structural parameters
通過數值計算，獲得了此類慢波結構的色散特性和耦合阻抗隨結構幾何尺寸和介質參數的變化規律;在此基礎上，建立了任意槽形螺旋槽及中心加介質棒的任意槽形螺旋槽行波管的注-波互作用線性理論，並編製程序，計算了管子的小信號增益、帶寬、電磁慢波的「熱」相速與電子注參數、結構參數之間的關系，獲得了增加帶寬或增益的途徑。5. manganin thin films with low temperature coefficient of resistance were prepared by magnetron sputtering. the changes of tcr under difference deposition and heat treatment conditions were studied
首次採用磁控濺射法沉積了低電阻溫度系數的錳銅薄膜，研究了在不同電子科技大學博士學位論文沉積及熱處理條件下薄膜tcr的變化。The regenerative characteristics, performance parameters and optimal theories of the encsson and stirling cycles using respectively a ferroelectric material, a ferromagnetic material, a classical gas, a quantum gas and a spin system as the working substance are researched for different operating conditions
本論文主要研究以鐵電材料、鐵磁材料、經典氣體、量子氣體和自旋系統等不同材料為工作物質的埃里克森循環和斯特林循環在各種不同條件下的回熱特徵、性能參數及優化理論。We prove the general characters of gapped system in low temperatures again : near zero temperature, the specific heat and uniform susceptibility take on exponent behavior
我們再一次驗證了有能隙系統在低溫下的普遍特徵：在零溫附近，比熱和零場下的磁化率隨溫度表現為指數上升的現象。Now, the reported fgs can measure many physical parameters including temperature, strain, stress, displacement, pressure, torsional angle, twist moment ( moment of torque ), accelerated velocity, current, voltage, magnetic field, frequency, density, coefficient of thermal expansion, trembling etc. some of the fiber grating sensing systems have been put into practical use
目前，已報道的光纖光柵傳感器可以檢測的物理量有:溫度、應變、壓力、位移、壓強、扭角、扭矩（扭應力） 、加速度、電流、電壓、磁場、頻率、濃度、熱膨脹系數、振動等，其中一部分光纖光柵傳感系統已經實際應用。分享友人