The principle and approach of constant magnetic measurement for diameter of coiled tubing is introduced, and an instrument for the measurement is designed.
介绍了连续油管直径恒磁测量原理及方法，给出了测量装置的构成和实验数据，分析了其测量精度。
The electromagnetic loss property was studied by the relative dielectric constant and relative magnetic permeability of the ferrites.
并测试样品的相对介电常数和相对磁导率，研究了它们的电磁损耗特性。
The electromagnetic loss property was studied by the relative dielectric constant and relative magnetic permeability of the above three ferrites.
经测试样品的相对介电常数和相对磁导率后，研究了它们的电磁损耗特性。
To calibrate and compensate the compass error of magnetic heading in a carrier with constant pitch Angle, the deviation compensation algorithm (DCA) for magnetic deviation compensation is put forward.
针对具有恒定俯仰角度载体的磁航向罗差标定和补偿问题，提出了一种用于磁罗差修正的偏差补偿算法(DCA)。
The important parameters for the wave absorption effects are electromagnetic loss factor, complex dielectric constant, complex magnetic conductivity.
评价吸波效能的主要参数是损耗因子、复介电常数、复磁导率。
Then a vector control method with speed closed-loop and magnetic linkage closed loops put forward, which is based on the constant velocity by means of stator flux-oriented vector control.
在基于定子磁场定向的矢量控制恒线速运行控制方案的基础上，提出了一个速度闭环、磁链闭环的矢量控制方案。
The calculated results showed that the effective magnetic anisotropy constants of ultrafine particles were larger than the magnetocrystalline anisotropy constant of Li-ferrite.
结果发现，有效磁各向异性常数随粒度的减小而增大，微粉的有效磁各向异性常数大于锂铁氧体的磁晶各向异性常。
To obtain a constant gradient magnetic field outside unilateral nuclear magnetic resonance (NMR), optimal design method based on finite element method (FEM) and topology optimization is proposed.
为了在单边核磁共振仪器外产生梯度恒定的磁场，提出利用基于拓扑优化和有限元法的优化设计方法。
It also showed that the complex dielectric constant and complex permeability decrease as the measuring frequency increasing, and maximum dielectric loss was 0.30, but magnetic loss is small.
其介电常数、磁导率基本都随测试频率的增加而下降；介电损耗值最大可达到0.30，磁损耗值较小。
Machine magnetic parameters influence the control performance of an interior permanent magnet (PM) machine, in both the constant torque and the flux-weakening operating regions.
无论是在恒转矩运行区域还是在恒功率运行区域，内置式永磁同步电机的电磁参数对其控制系统的性能都会产生重要影响。
The method adjusts time constant and gain of compensation-circuits with determining change of magnetic resonance signal of phantom.
本方法通过观察水模样品的磁共振信号的变化来调正补偿电路的时间常数和增益。
Uneven constant magnetic field could alleviate the deformation of neuronal nucleus and change of nuclear membrane structure induced by hypoxia.
非均匀恒磁场可缓解缺氧导致神经元的核变形以及核膜结构不光滑等现象。
The step through test and independent activity were used to observe effect of uneven constant magnetic field pole N and S on learning and memory impairment induced by hypobaric hypoxia .
用避暗实验法和自主活动法，分别观察了非均匀恒磁场N极、S极对急性低压缺氧引起的学习记忆障碍的影响。
Under the condition of constant load on the driven wheel. the magnetic field was calculated and the position of the rotating driven wheel was researched.
从恒定负载出发，得出从动轮在运动中的位置变化曲线并进行了实验验证。
The result shows that under the constant current exciting mode, the exciting magnetic field is the strongest and has a focusing effect, which improves the eddy detection sensitivity considerably.
结果表明，在恒流激励方式下的激励磁场最强，且具有聚焦效果，因而可有效地提高涡流探伤的灵敏度。
It can be seen from the formula: for a certain Hall device, the magnetic field B0 can be indirectly measured through measuring the Hall device if only the passing current I is constant.
从公式中可以看出，对于一定的霍尔器件，只要通过的电流i恒定不变，便可以通过霍尔器件的测量而间接测定磁场B0。
The control of the constant Phase difference between the current and the displacement of the magnetic damper in rotor-bearing system is studied.
对挠性转子轴承系统电磁阻尼器的电流位差常相位移振动控制进行研究。
Conclusion To some extent, the constant magnetic field can increase the antioxidation ability of rats during cerebral ischemia-reperfusion injury.
结论恒磁场能在一定程度上提高大鼠脑缺血—再灌注模型的抗氧化能力。
Objective: To study the effect of different intensity constant magnetic fields on the blood cells in rats.
目的：研究不同强度恒磁场环境对大鼠血细胞的影响。
A kinetic equation for uniform plasma in the presence of both constant electric and magnetic fields was obtained by the method of micro-density in the phase space.
在有恒定外电、磁场的情况下，采用微观相空间密度方法导出了均匀等离子体的动力学方程。
The statistical average value of electronic polarization vector, magnetic moment, energy and paramagnetic susceptibility, which are proceeded under constant magnetic field, is discussed.
研究均匀磁场中电子的极化矢量、磁矩、能量和顺磁磁化率的统计平均值，以及在低温、强磁场极限和高温、弱磁场极限下的统计行为。
Converter governor, in accordance with various loading natures, employs different control means. It is usually divided into constant magnetic f...
变频调速根据其不同的负载性质，采用的控制方法也不同，通常分为恒磁通调速和恒功率调速。
In this article, it is pointed out that calculating induced electric field caused by variable magnetic field in constant velocity by analogical method is a simple method.
用类比方法来计算以恒定速率变化的磁场产生的感应电场是一个简便的方法。
The effects of the rotated constant magnetic field on the biochemical parameters in rat serum are reported.
报道了旋转恒定磁场对大鼠血液生化指标的影响。
When the temperature of the surroundings was kept constant, the viscosity of magnetic fluid increased with increasing the magnetic field.
当环境温度一定时，在磁场的作用下磁流体的粘度会增加，粘度的大小与磁场作用的时间有关；
To keep leakage flux to be constant, the relation is analyzed between the air gap length and the non-magnetic material thickness with the rare earth magnet thickness under the air gap length variety.
在气隙长度发生变化时，为了保证漏磁大小不变，讨论了气隙与非导磁衬套厚度、磁钢厚度的关系。
Low field Nuclear magnetic resonance technique was used to evaluate the quality and behavior of water in navel orange during storage in constant temperature and humidity.
采用低场核磁共振技术研究脐橙储藏过程中水分的状态、变化以及水分的迁移。
From a teaching point of view, the author derives and proves the interrelation between electrostatic field and constant magnetic field in the light of the special theory of relativity.
本文从教学的角度，应用狭义相对论原理推早、证明静电场与恒稳磁场的相互联系，深刻揭示了静电场与恒稳磁场都是电磁场在不同参照系中的不同表现形式而己。
An example is periodic motion, such as the precession of a particle with intrinsic spin and magnetic moment in a constant magnetic field.
一个例子是周期运动，如一个带有自旋和磁矩的粒子在恒定磁场中的进动。
An example is periodic motion, such as the precession of a particle with intrinsic spin and magnetic moment in a constant magnetic field.
一个例子是周期运动，如一个带有自旋和磁矩的粒子在恒定磁场中的进动。
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