磁致伸缩系数

对已有的铁基非晶薄膜的实验数据，在不同磁场强度下，磁致伸缩系数的计算结果与已有模型进行了比较，它们之间的差异得到了解释。

The experimental data of an Fe-based amorphous thin film were analyzed by using the model . The calculated results of the magnetostrictive coefficient on the external magnetic field was compared with the other existing models , and the discrepancy among these results were explained .

基于激光光杠杆放大法，实现了薄膜磁致伸缩系数的计算机辅助测试。通过标定，测试系统的分辨率小于1ppm。

Then , based on the laser cantilever deflection method , the film magnetostrictive coefficient measuring system was designed and realized .

原位磁化X射线粉末衍射法测还原铁粉的微观磁致伸缩系数

Magnetostriction Coefficient of Reduction Iron Powder Measured by In-situ Magnetization X-ray Diffraction Methed

首次报导X射线粉末衍射法测量铁粉晶胞的磁致伸缩系数。

In situ magnetization X-ray powder diffraction method is firstly applied to measure magnetostriction coefficient of reduction iron powder .

Cr，Cu，Co对Fe-Si-B非晶合金磁致伸缩系数的影响

Effect of cr , Cu and CO on magnetostriction of Fe-Si-B amorphous alloys

运用多参数磁测量系统测试了材料的磁致伸缩系数λ、磁感应强度B、动态磁致伸缩系数d33、增量磁导率μ33和磁机电耦合系数k33，研究了磁特性随磁场H的变化规律。

The dependent curves of magnetostriction , added magnetic conductivity and other magnetic parameters on magnetic field were measured by using multiple parameter magnetic measurement system .

研究了具有近零磁致伸缩系数Fe4.35Co68.15Si12.5B15晶态合金丝在外加压应力作用下显示的巨应力电阻抗（GSI）效应。

The giant stress impedance ( GSI ) effect shown in nearly zero magnetostrictive Fe 4.35 Co 68.15 Si 12.5 B 15 amorphous wire submitted to an external compressive stress is studied in this paper .

电容位移法精确测量磁性薄膜的磁致伸缩系数

A method for testing the magnetostriction coefficient of thin films accurately

薄膜磁致伸缩系数λs的简易测量

A Simple Measuring Method for Magnetostriction Coefficient of Thin Films

磁致伸缩系数实验测定方法的比较

A Comparison of the Determination Methods of the Magnetostriction Coefficient

磁致伸缩系数的智能化测量系统设计

Design of Intelligent Measuring System on Magnetic Flexible Coefficient

本文研究了利用具有近零磁致伸缩系数钴基非晶态合金丝研制的新型磁场传感器。

A new type magnetic sensor using near-zero magnetostriction cobalt-based amorphous wire was studied in the paper .

磁致伸缩系数的测量

Measurement of magnetostriction coefficient

考虑膜厚影响薄膜磁致伸缩系数、泊松比和杨氏模量的同时测量

Simultaneous measurements of the magnetostrictive coefficient , young 's modulus and Poisson ratio of the thin film considering the thickness of film

利用短时矩形脉冲电流对近零磁致伸缩系数钴基非晶态合金带进行退火处理，得到约114%的巨磁阻抗变化率。

The GMI ratio of about 114 % is obtained in near zero-magnetostrictive Co-based amorphous alloy ribbon annealed by short time rectangular pulse current .

另外，其磁电阻与外应力之间的关系紧密地依赖于两铁磁层的磁致伸缩系数以及磁晶各向异性等。

In addition , the stress field dependence of MR is close related with both the magnetostriction and the magnetocrystalline anisotropy of ferromagnetic layer .

具体介绍了零磁致伸缩系数非晶丝的磁特性、传感器制作及测量原理。

The magnetic characteristic of uncrystallized thread with zero magnetostriction coefficient and fabrication of the transducer as well as the principle of measurement are introduced concretely .

阐述了以单片机为核心的磁致伸缩系数的智能化测量系统的测量原理，详细论述了硬件系统设计的要点。

This paper is a detailed present of the principle of microcontroller intelligent measuring system on magnetic flexible coefficient and the key points about the hardware system designing .

用提拉法磁悬浮冷坩埚技术生长的RFe2（Tb0.3Dy0.7Fe1.95）单晶材料，其室温下的饱和磁致伸缩系数λs可达2×10-3以上，优于同成分的定向结晶材料。

Magnetostrictive coefficient of Tb 0.3 Dy 0.7 Fe 1.95 ( RFe 2 ) single crystal is much higher than that of directional solidification crystal with the same composition .

基于悬臂梁结构的激光光杠杆放大法，将薄膜磁致伸缩系数的测量转化为激光光斑位移的测量。

The measurement of magnetostrictive coefficient of the films is transformed into the measurement of the displacement of reflected laser dot by the reflected laser beam method based on cantilever structure .

为了进一步降低非晶合金配电变压器的成本，提高性能，对非晶合金材料提出了提高工作磁通密度、增加填充系数、适当降低脆性、减少磁致伸缩系数等要求。

In order to further reduce the cost and improve the performance , to increase flux density and fill factor , and properly reduce the brittleness and magnetostriction coefficient are required .

基于经典层合板理论，建立了一个能同时测量薄膜-基底系统中薄膜的磁致伸缩系数、杨氏模量和泊松比的板模型。

Based on the classical laminated plate theory , a plate model , which determines simultaneously the magnetostrictive coefficient , Young 's modulus and Poisson ratio of a thin film of a cantilever film-substrate system , is suggested .

本文研究了利用近零磁致伸缩系数钴基非晶态合金丝制成的单磁芯双绕组新型磁场传感器。通过对敏感元件的优化设计，改善了传感器的线性度、灵敏度、温度稳定性指标。

In this paper a new single core and double winding magnetic field sensor using near zero magnetostriction Co based amorphous wire is studied The linearity , sensitivity and stability against temperature variation of the sensor are improved by optimizing design to the sensitive element .

对模型进行数值分析后得到，声波产生的幅度受磁致伸缩应变系数和磁导率的共同影响，并且随提离距离的增大而减小。

Based on analysis of the mathematic model , it is concluded that the wave amplitudes are sensitive to both magnetic permeability and magnetostrictive strain coefficients and decrease exponentially with transducer lift-off .

阻抗电容耦合放大器超磁致伸缩材料机电耦合系数的测量

The Measurement of the Electromechanical Coupling Coefficient of the Giant Magnetostrictive Material

超磁致伸缩材料的伸缩系数及热膨胀等，都与温度有关。

The extension coefficient and thermal expansion of the GMM relate to the temperature .

本文采用丘克拉尔斯基法制备晶粒取向的（Tb0.28Dy0.72）Fe1.95磁致伸缩材料，研究了材料的微观结构对磁致伸缩系数的影响。

Czochralski techniques have been used to produce grain aligned rods of ( Tb 0 28 Dy 0 72 ) Fe 1.95 . The effect of microstructure on magnetostriction was investigated .

根据材料力学原理对磁致伸缩薄膜-基片悬臂梁结构进行了分析，推导得到了薄膜磁致伸缩系数与悬臂梁自由端挠度的关系式。

The main results are as follows : Firstly , based on the material mechanical principles , the magnetostrictive film-substrate cantilever was analysised . The formula of magnetostrictive coefficient and cantilever deflection is deduced .