field magnet 中文意思是什麼

field magnet 解釋
【物理學】場磁體，場磁鐵。

  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • magnet : n. 1. 磁體；磁石；磁鐵。2. 有吸引力的東西[人]。
  1. I have contacted to a company makes field coil magnet and decided to convert alnico 288 to field coil magnet

    我和一個製造勵磁磁鐵的公司接觸過后，決定把288的鈷磁改裝成勵磁磁鐵。
  2. The form of the stable geomagnetic field is like that of a bar magnet at the center of the earth

    穩定地磁場的形狀與地球中心的棒磁鐵的形狀相似。
  3. Because the core current is somewhat symmetrical around the axis of rotation, the associated magnetic field is similar to that of a bar magnet

    因為地核流在旋轉軸周圍存在著一些對稱，所以相關的磁場與棒磁鐵的磁場相似。
  4. Birds and compasses know north from south because, like a giant bar magnet, the earth ' s magnetic field has two poles that line up closely with the planet ' s axis of rotation

    候鳥與指北針都知道何為北方、何為南方，因為地球就像一條巨型磁鐵棒，它的磁場有兩極，且這兩個地磁的磁場線和地球的自轉軸非常接近。
  5. We only observe the small portion of the magnetic field that extends to the surface and beyond, where its basic structure is a dipole that is, a simple north south field like that of a simple bar magnet

    我們僅僅觀察到擴展到地表和地表以外的磁場的一小部分，在這里它的基本結構是一個偶極子，就像一個簡單的棒磁鐵一樣是一個簡單的南北極磁場。
  6. Power mosfet is adopted to switch heavy current of magnet core in order to control rotating magnetic field effectively

    為了使磁場得到有效控制，本文採用功率nosfet實現電磁線圈大電流的開關。
  7. Torque analysis of planar permanent magnet micromotor based on magnetic field

    基於磁場觀點的平面永磁微電機轉矩分析
  8. Lastly, calculating the magnet performance using theoretical formulation, which expresses the relationship of the external magnetic field and remanence of the magnet, can tell the type of unknown magnet

    另外，通過對磁體國防科學技術大學研究生院學位論文表面場的測量，並結合理論公式可以判斷未知磁體類型。
  9. This paper presents our research in actuating in - vivo micro - robot based on the capsule endoscope platform by the external power. while seeking secure driving method we take several factors into account, such as driving environment, power transmitting and consuming, motion requirement and controllability, and locating technique. we mainly deal with driving the capsule with spatial gradient magnetic field, so we employ combined electro - magnetic coils, including gradient coils and homogenous coils, which have rotational dof around a translatable patient bed, to compose a controllable uniform gradient which act on the permanent - magnet embedded robot, thereby get an appropriate spatial force and torque to fulfill the anticipant locomotion such as move, stop, pitch and yaw

    基於驅動環境、能量供給和消耗、驅動動作要求及驅動安全性與可控性，定位方案等多方面考慮，尋求安全可靠的腸胃檢查微機器人的外部驅動控制方法，並著重研究直接利用外磁場磁力驅動微機器人:在微機器人內部嵌入永磁性體，利用體外的組合電磁線圈產生加載電流控制的驅動磁場，其中外部的電磁線圈由多組梯度線圈和勻場線圈組合構成，通過繞病床的旋轉以及病床的平移共同控制微機器人所在位置的磁場強度及梯度，作用於微機器人內嵌磁體以獲得空間意義上的必要驅動力和調整轉矩，從而有效地完成驅動動作要求。
  10. The good agreement showed the validity of the analytical methods. a new scheme of the complex excitated lsm is also proposed, which incorporates the advantage of electrical excitated lsm and permanent magnet lsm. this technique has potential application in the field of maglev

    論文還提出了一種混合勵磁的直線同步電機的概念設計方案，它結合了電勵磁直線同步電機和永磁直線同步電機的一些優點，在磁懸浮技術中有較好的應用前景。
  11. In this paper, we at fist analyse the distribution of magnetic field in the permanent magnet synchronous motor which rate power is 800w and calculate parameters of this motor on the basis of the traditional approach to ca1culating armature reactance, we put forward a new method which is based on the iteration of the electromotive force equation, and name it after " electromotive oprce method "

    本論文運用有限元方法分析一臺800w稀土永磁同步電動機內部電磁場的分佈情況，計算出相應的電機參數。並在傳統的計算電樞反應電抗的基礎上提出了一種基於電勢平衡方程式的計算方法，本論文稱之為「電勢法」 。
  12. Base on certain main magnets of nmr this thesis designs the most excellent structure of the pole shape and obtains a relatively uniform magnetic field in a large imaging volume. the calculating model of pole shape made of pure iron can be simplified with the infinite permeability and calculated with the scalar potential. the rule between pole shape and the homogeneity or the size of uniform region of magnetic field is discovered and factors of influencing the homogeneity of the magnetic field are held so that the main magnet with the optimized size of pole shape can produce a relatively uniform magnetic field in a large imaging volume

    本文針對一類典型結構的主磁體，通過磁場分析與大量的計算，找到了極靴形狀的改變影響樣品區磁場均勻度以及均勻區域范圍的規律，掌握了極靴形狀的變化趨勢及其形狀影響樣品區磁場均勻度的各種因素，進行了極靴的形狀優化設計並編制了相應的計算機軟體，給出了極靴形狀的具體尺寸，使得主磁體能在更大空間內產生相對均勻的磁場。
  13. 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。
  14. The massive magnetic field of a powerful mri machine aligns the nuclei of the atoms in the same direction, much as a magnet pulls a compass needle

    一臺效能強大磁振造影儀的強大磁場能使原子核往同一方向排列成行，就好像磁鐵吸引羅盤的指針一樣。
  15. We also analyzed the interaction among the distribution of the magnetic field around the magnet, the induced electromotive force in the coil and the vibration of the magnet

    對永久磁鐵在空間產生的磁場分佈、感應線圈中的感應電動勢與磁鐵相應振動等因素的相互關系進行了計算分析。
  16. Cardiogram is made according to the bioelectricity of brain cell on the basis of the principle that changing current produces magnet. thus, the biology magnetic field results from bioelectricity inside human body as well as some material magnetized by the magnetic field inside forming a residual magnetic field after the disappearance of effecting magnetic field, like lung magnetic field

    心電圖是由腦細胞的生物電流形成的，根據電動生磁的原理，故體內的生物磁場是由於體內生物電流形成的，除此之外還由於某些磁場物質的介入體內被磁化后而在外加磁場去掉后，產生的剩餘磁場，如肺磁場。
  17. Displays is functioned under the electromagnetic theory and can be easily effect by the magnetic field. however, please notice that most of the speaker has built - in a big magnet which can effect the functioning and level down the quality of the displays. please do not use your monitor when magnets or electronic products such as speakers operating nearby

    電腦顯示器是利用電磁原理來運作的，因此磁場干擾的隔離相當地重要，很多消費者都將喇叭放在顯示器兩側，而市面上防磁喇叭的防磁效果不一，因為喇叭後方有個相當大的磁鐵，如果喇叭過于靠近顯示器的話，就會造成干擾的情形，甚至於產生著磁現象而影響畫面品質。
  18. By successful solution of non - linear magnetic fields and revision of the program, we can reach following conclusions : in the computation of nonlinear magnetic fields, if iteration method is used, under - relaxation is necessary when amending the permeability distribution in soft magnetic materials ; and when < wp = 5 > calculating the equivalent current density in permanent magnets, under - relaxation is not a necessity ; when searching for permeability values by interpolation method on the demagnetization curve of soft magnetic materials, if a fixed saturation point is set, around this point an abrupt change of permeability values will be obtained ; this sudden change may cause a little problem in the smoothness of magnetic field distribution ; because the magnetic circuits of microwave tubes are too complicated, in the author ' s view, to describe the working state of a magnet system, the working points of magnets can not do it properly but average energy production of magnets will serve ; as to indicate the quality of a magnet system design for microwave tubes, the efficiency of magnetic energy utilization will be a very good criterion

    由此得出結論，在非線性磁場計算中：採用迭代法的情況下，在各迭代循環之間進行磁導率修正時，一個欠鬆弛迭代過程是必需的；對永磁體中的等效電流修正時可以不作欠鬆弛迭代；在純鐵的磁化曲線上指定某一個固定的磁感應強度為磁飽和值，會使得插值求出的磁導率在該磁飽和值附近有一突變，這一突變對計算結果中磁場分佈變化的光滑性稍有影響。在微波管磁系統設計中，由於微波管磁路比較復雜，作者認為磁體的工作點並不能很好地反映磁體的工作狀態，而採用平均磁能積為衡量磁體工作狀態的標準更加符合微波管磁系統的實際情況；要表示磁系統設計好壞的程度，則用磁能利用的效率為標準更好。
  19. Magnetic field strength h of sintered smco magnet

    燒結釤鈷磁鐵的最低飽和磁化磁場強度
  20. No, even thought the magnet in speaker is a permanent one and also can form costant magnetic field but cannot be used for health care

    不可以作為保健用磁。報廢的廣播喇叭磁塊，雖然也是一種永久磁體，也可以產生恆定的磁場，卻不可以作為保健用磁。
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