magnetic selection 中文意思是什麼
magnetic selection
解釋
磁甄別-
Fourthly, according with the analyzing of flow measurement, we research the main problems needed to be solve in the process of measurement, such as analysis and measurement of the internal resistance, selection of excitation frequency, stable signal datum mark and restraining common mode interference, restraining for serial mode interference and working frequency interference ; transporting and shielding the flow signal, constant current excitation and magnetic field equalizing, flow measuring
第四，根據對流量測量問題分析的，深入研究了設計過程中需要解決的主要問題。如內阻分析與測量;勵磁頻率的選擇;穩定信號基準點與抑制共模干擾;串模干擾與工頻干擾抑制;流量信號傳輸與屏蔽;恆流勵磁與磁場補償;流量測量點的選擇等。 -
Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method
在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。 -
Selection of powder type and parameter in magnetic particle clutch
磁粉離合器中磁粉的類型和參數的選擇資料摘編 -
Eriez magnetic separator and model selection
磁選機及其選型 -
Some physical methods of herbage seed selection applied in grassland ecotogical resume were introduced, including electric field, magnetic field, physical radiation, laser, ion beam and alternative stress etc., and their application in biological effect, induced breeding and transgenic techniques
摘要介紹了草原生態恢復中選育優良牧草種子的一些物理學方法，包括電場、磁場、物理輻射、激光、離子束和交變應力等在植物的生物學效應、誘變育種和轉基因技術中的應用。 -
According to electric & magnetic and circuit analysis theory, monocable transmission characteristics is analysed. on this basis, the transmission characteristics of the monocable in use is analysed and caculated. monocable is thousands meter long, electrical signal transmission along monocable shows long line transmission characteristics. monocable characteristics analysis is helpful to monocable telemetry system design, such as data transmission rate selection, circuit design, etc
生產測井中應用的單芯電纜是地面系統和井下數據採集傳輸系統間的數據傳輸通道。它長約幾千米，屬長線傳輸。對它的特性分析可以對傳輸系統的設計提供理論指導，如數據傳輸速率的選取、電路設計等。 -
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。 -
The high - performance heat - reflective coated glass is also called sunlight control coated glass it is made by coating a number of metal or metal compaound films onto the high - quality float glass or other base glass with the vacuum magnetic control sputtering method, which can effectively control the reflection, transmission and absorption of solar energy, that is to say, this glass allows sufficient natural light to come in for daylighting, and can also reflect major part of sunlight irradiation to reduce the collection of indoor heat and lower down the expenses for ventilation and air conditioning ; furthermore, the transmission, reflection ratio and reflection color are ready for the selection by the users
高性能熱所射鍍膜玻璃也稱為陽光控制鍍膜玻璃，是在優質浮法玻璃或其他基片上用真空磁控濺射的方法鍍多層金屬或金屬化合物薄膜而成，可有效控制玻璃對太陽能的反射、透過和吸收，也就是說允許足夠的自然光進入室內用於採光，還能把大部分太陽光輻射熱反射掉，減少室內熱量的積聚，降低通風及空調的費用，而且可以根據客戶的需求，靈活選擇透過率，反射率及反射顏色。 -
In addition, circuit cost, power density and magnetic components are discussed qualitatively, as a reference to the selection of standard topologies
另外，作為補充，本文從成本、功率密度、磁元件等其他幾個角度定性地對這些拓撲進行了考查，作為確定標準拓撲的參考。 -
Core losses are caused by an alternating magnetic field in the core material, thie losses are a function of the operating frequency and the total magnetic flux swing, the total core losses are made up of three main components, hysteresis eddy current and residuallosses, these losses vary considerably from one magnetic material to a - nother, applications such as higher power and hither frequency switching regulators and rf designs require careful core selection to yield the highestinductor perfor - mance by keeping the core losses to a minimum
鐵損是由於在鐵芯中的變更磁場院所造成，這個損失與操作頻率及總流動的磁通量有關，總鐵損由三個成份組成，磁滯損，過流損及殘留損，這些損失因磁性材料不同而異，在如高功率切換調整器和rf的設計需要小心選擇鐵芯種類以降低鐵損使電感的表現最佳。
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