磁場掃描 的英文怎麼說
中文拼音 [cíchǎngsǎomiáo]
磁場掃描
英文
magnetic field scanning-
The shadow mask is the critical component of the colour picture tube and the important component for the choice of colour, its function concentrates on the limitation of electronics bound diameter and the screening direction, the electronics bound which is sent by the electronics gun goes scanning, during the scanning process, we should guarantee every bound gathering into the small holes situated on the screen, then these bounds will point to the regularized position through the small holes on the flat mask, and then three basic colours will be produced, at the same time, those useless electronics will be blocked by the mask board
平板蔭罩是彩色顯像管的關鍵部件之一，是一個重要選色元件，其作用是限制電子束直徑和上屏方向，由電子槍發射的電子束在偏轉磁場的作用下進行掃描，掃描過程中必須使每個電子束只能射中熒光屏上的為該束指定的那些小孔上會聚，並通過蔭罩上諸多的小孔分別打到各自對應的熒光質點上，發出三種基色（紅，綠，藍） ，而無用的電子則被蔭罩板截獲。For the convenience of testing, sampling software was programmed using vc + + 6. 0 through computer. this software can control the scanning device to move in various ways, and can take real - time data from gauss meter by rs232. now, weak magnetic measurement system has been completed
又利用vc + + 6 . 0編制了軟體，控制掃描架按照多種方式進行掃描，將高斯計測得的漏磁場數據實時採集到數據庫中，組成了一套可精確定位、自動採集數據的弱磁場測量系統。In this paper, a high integrated and intelligent digital dsp - spm system is developed based on the nspm6800 spm manufactured by the beijing zhongke mechanical & electrical equipment co. at present, the pc of spm system is burdened with not only sending and receiving data, but also disposing of image, which hinders the enhancement of speed of the system. in addition, as the function of spm is expanding, including tappingmode afm, efm, mfm, scm, etc, one hand, it amplifies the range of the application of spm, on the other hand it also means that the task of autocontrol and data transfer heavier. the advantages offered by the dsp compared to analog systems include considerable flexibility in the choice of the signal processing algorithm and greater ease in managing control parameters by the host computer, which are very important for the improvement of spm
本課題以北京市中科機電設備公司的nspm - 6800型掃描探針顯微鏡為基礎，重新設計了以dsp為控制核心的控制系統，主要解決原系統存在的以下問題： （ 1 ） pc機既要實時控制數據的採集與發送，又要進行圖像的后處理，整個系統的實時性難以達到要求； （ 2 ）隨著spm功能的擴展，一方面包括輕敲式原子力顯微鏡、電場力、磁場力、掃描容場顯微鏡等技術在內的spm技術擴展了儀器的測試范圍和功能，另一方面也意味著自動控制量的增加和數據處理量的增加； （ 3 ） 16位a d 、 d a都採用的是購買的板卡，也通過isa槽插在pc機內，成本高，不利於擴展； （ 4 ）另外，數字板通過isa槽插在pc機內，易受于擾，而且給安裝帶來不便。The phase structure of different cu - fe thin films were studied by using grazing incidence x - ray analysis ( gixa ). the texture and residual stress of different cu - fe thin films were measured by scan of x - ray diffraction ( xrd ) and 2 scan with different. the thicknesses of different thin films were characterized by means of small angle x - ray scattering ( saxs ) technique. by using atomic force microscope ( afm ) measured surface roughness of thin films. the component of different thin film was characterized by energy disperse spectrum ( eds ) and x - ray fluorescence ( xrf ). the magnetic properties of cu - fe thin films were measured by means of vibrating sample magnetometer ( vsm ). in addition, the giant magnetoresistance ( gmr ) effects of different films were also measured. the original resistance of the film fabricated by a direction - current magnetron sputtering system is directly affected by bias voltage
利用掠入射x射線分析（ gixa ）技術對不同cu - fe薄膜的相結構進行了研究;利用xrd掃描及不同角度的2掃描對薄膜進行了結晶織構及殘余應力分析;運用小角x射線散射（ saxs ）技術測量了薄膜的厚度;採用原子力顯微鏡（ afm ）觀察了薄膜的表面形貌;運用能量損失譜（ eds ）及x射線熒光光譜（ xrf ）對薄膜進行了成分標定;使用振動樣品磁強計測量了不同cu - fe過飽和固溶體薄膜的磁性能;最後利用自製的磁阻性能測試設備測量了真空磁場熱處理前後不同薄膜的巨磁阻值。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 pulsed field magnetization condition, we find some new phenomena characteristic, that is, the trapped fluxes of ybco bulk increase with increasing intensity of applied field up to about 1. 9t, but decease beyond this value and the scanning distribution map of the trapped fluxes on the surface of the superconductor is not slick, which is different with the superconductors magnetized in constant magnetic field and the normal permanent magnets
超導體在脈沖場下具有特殊的勵磁特性，當脈沖場在1 . 9t左右時，由於在脈沖場下超導體內的磁通線運動受到較大的粘滯力作用，超導體表面中心的俘獲場分佈掃描圖將出現一些凹陷區域，這是跟超導體在恆定場下的勵磁和一般永磁體所不同的。In order to realize the flaw identification of link - thread bolt, it establised the flawidentification method which depended on the local maxima abstracted from detecting signal. itsorted all flaws into three kinds, and assayed the characteristics of signal and expounded thecriterion for each kind of flaw
綜上所述，本文在研究場量測量和頻率掃描技術的基礎上，利用同一硬體系統實現了渦流檢測和交變漏磁檢測的缺陷識別和深度測量，同時也實現了螺紋緊固件的缺陷檢測。The probability in the probability tomography method is defined with the degree of correlation or fitting in this paper. the methods of the definitions of the scan functions and the occurrence probability functions, the electric field under the tm model and the magnetic field under the te model, are given respectively. we also have brought forward the correlation probability tomography method of magnetotelluric field - derivative and the waveform function - fitting probability tomography method, and have analysed and tested these methods in the way of the selection of the setting field and the capability of noise - standing, etc with synthetic models
本文用相關程度和擬合程度兩種概率定義方法進行概率成像，給出電磁場tm模式下的電場和te模式下的磁場概率成像方法中各自的掃描函數的定義方法和異常源的發生概率的定義原則，提出了導數場相關概率成像方法和波形函數擬合概率成像方法，並從對背景場的選擇和成像方法的抗噪性能等方面對概率成像方法進行理論分析和數值模擬實驗。After vaccum annealling in magnetic fileld, the films were studied by grazing incidence x - ray diffraction analysis and scan of x - ray diffraction. the results showed that fe atoms could be separated from cu matrix, which results in the increasing of the interface scattering, and enhance gmr effect
通過對真空磁場熱處理前後的薄膜的gixa分析及xrd掃描發現，真空磁場熱處理能夠使沉積態薄膜中的fe原子從cu的晶格中定向析出，這使得熱處理后薄膜內部的界面散射增多，能夠有效的提高薄膜的巨磁阻值。It could provide high definition examination image of all body systems and organs, which is a safe, precise, reliable, woundless, high definition diagnosis of tumor and all kinds diseases. full digital computerized three - dimensional precise position system
Mr磁共振掃描主要利用強磁場和射頻脈沖的原理，藉助計算機技術，對人體各系統各臟器病變進行高清晰度影像學檢查，是一種安全準確可靠無創的先進診斷設備。Aiming at advancing the measuring precision, a simplified experimental method is given
改進后的實驗可以避免對水平磁場、地磁場水平分量和掃描場關系的誤判。During the experiments, a scanning device with high - order accuracy ( planar 2 - d positioning ) was designed to help realize exactly positioning measurement of mfl of specimens. the driving circuit of scanning device was designed
為實現泄漏磁場數值的精確定位測量，自製了高精度的掃描架及其驅動電路，並將其與弱磁場測量設備高斯計相配合。To measure the size of ba - ferrite fine magnetic particles, electromagnetic field was employed to drive the fine magnetic particles displace in order, then scanning electron microscope ( sem ) was used to observe and measure the size of ba - ferrite fine magnetic particles
為了迅速、準確地測定鋇鐵氧體磁粉顆粒的厚度、直徑和厚徑比的統計分佈，採用對磁顆粒施加外加電磁場的方法，使各個磁顆粒的易磁化軸方向趨於一致，並用掃描電子顯微鏡觀察鋇鐵氧體磁粉顆粒。分享友人