準永磁性 的英文怎麼說

中文拼音 [zhǔnyǒngcíxìng]
準永磁性 英文
subpermanent magnetism
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 永 : Ⅰ副詞（永遠; 久遠） perpetually; forever; always Ⅱ名詞（姓氏） a surname
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 磁性 : [物理學] magnetism; magnetic; magnetic performance; magnetic property
  1. The paper proceeds from the transient equation for voltage and torque, analyze the electromechanic time constant of permanent - magnet dc servomotors based on the theory, and compare with the several testing methods which are used normal in the engineering, point out the difference and applying area also for the testing error which is led to possibly

    摘要為了準確評價伺服電動機的動態性能指標，從電機的電壓、轉矩平衡方程式出發，在理論上對永磁直流伺服電動機的時間常數進行了分析探討，並對工程實際中常用的幾種測試方法進行分析和比較，指出其差別和適用范圍以及可能造成的測試誤差。
  2. The research work in this paper was carried out at the second power factory of xici subsidiary. the production technology of strontium ferrite was studied and wet process of strontium ferrite pre - sintering material with anisotropic characteristic was determined. products of y30h - 2 which meet the standard series of sj / t10410 - 1993 were selected to be experimental products

    本文以西磁分公司料粉二廠為基點，研究了鍶永磁鐵氧體生產的工藝技術路線，確定了濕法工藝生產各向異性鍶永磁鐵氧體預燒料，並將試驗產品定位在sj t10410 - 1993標準中的y30h - 2產品。
  3. 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。
  4. 4. to get the motor ' s performance by calculation with known formulas, as a result an adjustment for the motor ' s configuration can be practised. when a combined method of altering the length of armature, the number of turns in the winding and the dimension of permanent magnet is used. 5. to get the motor ' s performance when it is driven by the power converter. finally, the calculated data are compared with the experimental measurements, so as to verify the rationality and reliability of the method

    Q採用數值分析直軸負載磁場和交軸電樞反應磁場的方法來計算，得到較為準確的結果；根據電機工作特性的計算公式計算電機性能，由計算結果調整電機的結構，而調整工作使用改變電機鐵心長度、繞組匝數和永磁體尺寸相結合的方法，這樣可以得到較為理想的結果；對變頻電源供電時電機的工作特性進行計算，以檢驗其變頻時的性能。
  5. Direct torque control using space vector modulation ( svm - dtc ) scheme is discussed and the detailed designed, including space vector choosing and modulating, to overcome the control difficulties coming with the characteristic of low inductance. comparing with the basic dtc, the simulation results confirm the feasibility and good performance of this strategy. in order to reduce the torque error in dynamic state resulted from the nonlinear relationship between the torque and torque angle, a proportional - plus - integral ( pi ) torque controller with variable proportion is presented to ensure exact and quick control of torque in dynamic state

    系統的闡述了永磁同步電機直接轉矩控制理論，分析了改進后的svm - dtc控制策略，並具體設計了控制技術的實現方案，包括參考矢量的生成和空間電壓矢量調制的方法；為減小電磁轉矩與轉矩角非線性關系這一因數給電機電磁轉矩動態調節造成的誤差，本文實現了變比例系數轉矩pi調節器的方案，確保了系統穩定性的同時，實現了電磁轉矩在動態過程中快速而準確調節。
  6. Verification regulation of standard sample of the magnetic properties of permanent magnet materials

    永磁材料標準樣品磁特性試行檢定規程
  7. Standard test method for magnetic properties of high - coercivity permanent magnet materials using hysteresigraphs

    利用磁滯圖示器對高矯頑永久磁性材料磁性能的標準試驗方法
分享友人
分享到 Line

分享到臉書