magnetic symmetry 中文意思是什麼
magnetic symmetry
解釋
磁對稱-
If a magnetic field is switched on, the symmetry is broken.
如果加上磁場，就破壞了這種對稱性。 -
For the mesoscopic metal ring system in external magnetic field, supposing the system has a symmetry under translation in charge space, the quantum current and the quantum energy spectrum in mesoscopic metal ring are given by solving thire eigenvalue equations ; and the quantum fluctuations of the current and the energy have been calculated by the character of the minimum shift operator
摘要針對處于外磁場中的介觀金屬環系統，假設在電荷空間中具有變換的對稱性，通過求解本徵值方程給出系統的量子電流、能譜關系；利用最小平移算符的性質等，計算介觀金屬環中電流和能量的量子漲落。 -
For one - dimensional mesoscopic metal rings system in external magnetic field, supposing the system has a symmetry under translation in charge space, the quantum current relation in mesoscopic metal rings is given by solving the eigenvalue equation of the current, the property of quantum current have been investigated and analysed
摘要針對處于外磁場中的一維介觀環系統，假設在電荷空間中具有變換的對稱性，通過求解電流算符的本徵值方程，給出系統中的量子電流關系，分析和研究一維介觀金屬環中量子電流的性質。 -
On structure design aspect, this article adopts magnetism material to form a closed magnetic route around the giant magnetostrictive material, which can improve magnetic symmetry and reduce leakage of magnetic field
在超磁致伸縮微位移驅動器的結構設計方面，採用磁性材料將超磁致伸縮棒上下及四周構成閉合磁路，這樣不僅提高了超磁致伸縮棒內磁場的均勻性，並且減少漏磁。 -
On structure design aspect, a closed magnetic route around the gmm is formed, so magnetic symmetry and intension of gmm are improving ; on analysis of electricmagetic characteristics aspect, ansys software is applied to analyze the gma to optimize its structure ; on ampliflcatory power system aspect, based on the characteristic of driving power of gma and the principle of constant current source, a power amplifier using power mosfet is designed ; on testing equipments aspect, measure bracket is designed including transom, stand beam, screw, pedestal ; on cooling system aspect, a constant temperature cooling system is designed theorily
本文根據稀土超磁致伸縮材料的特點及其在工業元件、系統中的應用要求，在以往微位移致動器的基礎上，克服他們的不足，經過各方面的完善，設計出一種精確的、適合於主動控制的稀土超磁致伸縮位移致動器，主要在稀土超磁致伸縮致動器結構設計、電磁特性分析、功放系統以及最後的實驗測試系統方面進行了設計，同時對溫度冷卻系統也做了一些理論設計。
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