magnetic core material 中文意思是什麼
magnetic core material
解釋
磁芯材料-
The essential aspect of the mathematic model for inductor is the description of the hysteresis loops of the magnetic core material. the jiles - atherton ferromagnetic theory combined with the experience formula proposed by h. g. brachtendorf, c. eck and r. laur, was applied in this case. the model is more flexible than jiles - atherton ’ s, especially in the circuit model convert
本文採用了由h . g . brachtendorf 、 c . eck 、 r . laur提出的經驗公式與jiles - atherton鐵磁磁滯理論相結合的修改新數學模型，並將該模型轉換為等效電路模型模擬磁滯特性，實驗結果表明，該模型比jiles - atherton模型靈活，利於轉換為宏觀電路模型。 -
Yueqing zhengda soft magnetic alloy co., ltd is a high - tech company that mainly produces ultra - crystallite ( nanometer cryst - allite ) material, ultra - crystallite magnetic core, current transformer, zero sequence current transformer, toroidal transformer
樂清市正大軟磁合金有限公司，是一家專業生產超微晶（納米晶）帶材，超微晶磁芯，電流互感器，零序互感器，環型電感的高科技、軟磁公司。 -
Wth zf1 magnetic - optic glass as core and material iii as coat, we drew bare optic fiber and with coat, and then put them into helmhotz coil inspective. when introduced with linear - polarzed light, the intensity of the magnetic field can be calculated by measuring the output light signal
介紹了磁光玻璃工作原理及概況，研製了磁光玻璃光纖，以zf1磁光玻璃作為芯料，以號料作為皮料，將其拉成裸光纖和帶皮層的光纖兩種。 -
Long tr images show greater signal heterogeneity within the lesion core as a function of increasing te, probably because of the paramagnetic properties of hemorrhage : the main magnetic field is locally augmented by paramagnetic material and therefore a susceptibility difference is produced
長tr影像作為一種增加功能的te ，對病變中心顯影更多的不均勻高信號區，這可能是源於出血產生的順磁效應，即主要磁場的局部由於順磁材料產生的磁性差異產生的一種結果。 -
On the base of comparing many kinds magnetic material, the amorphous iron material is acted as magnetic core of high power spiral strip pulse transformer
通過比較各種磁芯材料的性能，最終選用鐵基非晶態材料作為高功率帶繞式脈沖變壓器的磁芯材料。 -
Based on the relevant theoretical researches, the loss property of the magnetic core material and winding were analyzed in this thesis. and 500 khz high frequency switching mode power supply transformer was made of pc40 magnetic core material for the first time in this thesis, which has good application perspective and can lead to enormous economic profits
本文在理論研究的基礎上，仔細分析了磁芯材料及繞組的損耗特性，首次採用pc40磁芯材料設計了500khz高頻開關電源變壓器，這在工程上有良好的應用前景和經濟效益。 -
For the air - core pulse transformer has no magnetic material to form the magnetic loop, its coupling coefficient and energy efficiency is lower. in order to improve its property, partial magnetic material is inserted in air - core spiral strip transformer. this method not only results in better property of transformer, but also reduces the bulk of transformer
本課題設計的變壓器是在帶繞式空芯脈沖變壓器中加部分磁芯材料以提高變壓器耦合系數，進而提高其能量傳輸效率，此方法彌補了空芯變壓器耦合系數低的缺點，並且可以使變壓器小型化，因此對部分磁芯脈沖變壓器理論和試驗的進一步研究具有重要的理論和實踐意義。 -
Considering that the ferrite core is often made from good permeable material, the dissertation presents the condition that the normal component of the magnetic field strength is zero approximately at the inside surface of good permeable material, i. e. bn = 0 to determine the eigenvalues for the separation constant. during the solving process, the solenoid coil is supposed to be wound closely by infinite symmetrical delta - coils
考慮到磁芯通常是由導磁性能非常好的軟磁材料構成，本文提出利用靠近良導磁材料內側磁場強度法向分量近似為零，即b _ n 0 ，這一邊界條件，來確定邊值問題中的本徵值。 -
1. nizn ferrite was developed for using in mini high frequency dc - dc converters and inductors. we measured and analysed the parameters of the nizn ferrite, which we concern about when designing the dc - dc converter. 2. the low loss sample of nizn ferrite were chosen for design - optimization of the high frequency transformer. based on the relevant theoretical researches, the loss properties of the magnetic core material and winding were analyzed in this thesis
因此，以nizn功率鐵氧體材料為開關電源芯材為基礎，並優化各種開關電源的設計已成為國際上的熱點和技術瓶頸，本論文正是以上述背景為研究目標而開展工作的，主要進行的工作和創新有: 1 .對研製的新型高頻低功耗的功率nizn材料進行參數的測試，並針對dc - dc變換器設計關心的參數對芯材特性進行了分析，選擇在特定頻率下，功耗較小的nizn材料磁芯樣品作為變壓器優化設計的預備磁芯。 -
The armoured single - core cables are used for d. c. system only. as for a. c. system, non - magnetic armour material should be used, or a magnetic isolation shouls beapplied
單芯鎧裝電纜僅用於直流系統，若用於交流系統，應採用非磁性材料鎧裝或隔磁措施。 -
First in this thesis, calculation methods and work states of five high frequency switching mode power supply transformers in circuit form had been studied systematically. then the optimum square - approach - method was used to fix the pcv - f - bm curve of the pc40 magnetic core material. the values of m1, m2 and m3 in the high frequency formula pcv = m1 * bm2 * fm3 can be gotten and the experience values of these parameters during the traditional design was modified
首先本文系統研究了五種電路形式的高頻開關電源變壓器的工作狀態及其計算方法，然後用最佳平方逼近法對pc40磁芯的pcv f bm曲線進行擬合，求得了高頻下磁芯損耗pcv = m1 * bm2 * fm3公式中的m1 、 m2 、 m3值，修正了傳統設計中對這三個參數的經驗取值。 -
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。 -
Aiming at the suppression principle of switch power supply emi, this paper designs the magnetic core of emi filter, which includes the choice of common - mode inductor ' s material and the calculation of magnetic core ' s winding
摘要針對開關電源的電磁干擾抑制原理，設計了電磁干擾濾波器磁芯，包括共模感應器材料的選擇，磁芯線圈的計算。 -
Secondly, it discusses the problem of material choice of the the key components - permanent magnetic iron and moving iron core in detail, according to the kinds of the present magnetic material and the characteristic of the valve itself
其次，針對目前磁性材料的種類及該電磁閥本身的特點，對電磁閥中關鍵部件永久磁鐵和動鐵芯的材料選擇問題進行了詳細的探討。
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