the earth magnetic field

Laser pumping magnetometers using alkali vapors as sensing medium can reach very high sensitivities in magnetic fields covering the range from the earth magnetic field to biological magnetic fields .

激光光泵碱金属磁力仪具有很高的灵敏度，测量范围可以从地球磁场到生物磁场。

The measurement system of the Earth magnetic field for pico-satellites is presented .

本文设计了一种应用于皮卫星的地球磁场测量系统。

Study on the Earth 's Magnetic Field

对地球磁场的探讨

Usually the earth 's magnetic field acts as a shield .

平常，地球磁场构成了一个保护屏。

Fractal and chaotic features for varying component of the earth 's magnetic field

地球变化磁场的分形和混沌特征

Measuring level branching quantity of the earth 's magnetic field with digital quantometer

用数字冲击电流计测地磁场水平分量

The Earth 's magnetic field is constantly changing , and the way , which it changes , also changes .

地球磁场总是在不停地变化，并且其变化的方式也在变化。

These disrupt the Earth 's magnetic field and reverse the Earth 's magnetic poles'rotational direction .

这些破坏了地球的磁场和扭转地球磁极'旋转方向。

Fluxgate sensor is used to measure weak magnetic intensity such as the earth 's magnetic field .

磁通门是一种用于测量微弱磁场（如地磁场）的传感器。它的测量范围宽，并能测量磁场分量，可应用于许多领域。

A sudden disturbance of the earth 's magnetic field ; caused by emission of particles from the sun .

电磁场的突然干扰；由来自太阳粒子的发射引起的。

What we 're seeing now are charged particles plowing into the earth 's magnetic field .

我们看到的是带电粒子冲入地球磁场。

When they reach the earth 's magnetic field the energy is transferred into visual light around the earth 's Polar Regions .

当它们到达地球磁场之后，能量便在地球极圈地带转化成可视的光线。

We know from magnetic records locked in rocks that the earth 's magnetic field has reversed many times in the past .

我们从锁定在岩石中的磁记录中知道，地球磁场在过去倒转了很多次。

By calculation of the earth 's magnetic field , this paper proves the formula describing magnetic field and reveals the reason of its existence .

本文通过对地球磁场的计算，验证了本人发现的描述磁场的公式，同时揭示了地球磁场存在的原因.文章中确定了公式的比例常数转磁率μn的数值；

There is , however , a growing body of evidence that the Earth 's magnetic field is about to disappear , at least for a while .

然而，目前所收集到的证据越来越能证明地球的磁场将会消失一阵子。

In other variations , a planet named Nibiru crashes into us or the Earth 's magnetic field flips .

其他的版本还有名为Nibiru的行星撞向我们或者地球磁场翻转等灾难。

The Earth 's magnetic field is produced by the flow of electrically charged particles in the liquid part of the earth 's core , which is mainly composed of iron .

地球磁场是由地核流体部分中带电粒子的流动而产生的，其流体部分主要由铁组成。

It 's not a matter of if the earth 's magnetic field will disappear some day , it 's a matter of when . And what will happen to life if it does ?

问题不在于地球的磁场将会在哪天消失，这只是一个时间的问题。如果消失，地球将会是什么样子呢？

We are still not sure how , but this compass interacts with the Earth 's magnetic field , helping the bacteria to navigate through sediment to the best feeding grounds .

尽管我们仍然不太确定，但它确实可以对地球磁场产生反应，方便细菌找到最佳的觅食区域。

At this time some atoms , like iron , will align themselves with the earth 's magnetic field in a recognizable way . Then , as the lava solidifies into rock , these little compasses get frozen in position .

这时候，有些原子比如铁原子，以一种可识别的方式按照地球磁场的方向排列，当熔岩凝固成岩石时，这些小的指南针会在原地冷凝。

Normal and quick run ( H. D. ) records of the earth 's magnetic field were made at Ruili , Yunnan Province during Feb. 16 , 1980 , total solar eclipse . Daily variation , small disturbance and magnetic pulsation were analysed .

1980年2月16日日全食期间，在云南瑞丽进行了地磁场的正常与快速两种记录，分析了地磁日变化、小扰动和地磁脉动的变化。

They plotted the earth 's local magnetic field and worked out the theory of the gyroscope .

他们绘制地球区域磁场图，还提出了陀螺仪理论。

With a strong magnet close by , anything like a magnetic compass can no longer tell about the earth 's weak magnetic field .

如果把一块磁力很强的磁铁放在近旁，任何像磁性罗盘之类的东西都无法分辨出正确方向。

Perturbation effect of the earth ′ s magnetic field on the variation of the semimajor axis and eccentricity of the orbit of a charged equatorial sattellite

地球磁场对带电赤道卫星的轨道半长轴和偏心率的摄动影响

This is because the earth is a huge magnetic field while human body is a small one , and the large one influences the small one at all times .

这是因为地球是一个大磁场，人体也是一个小磁场，大磁场无时不对人体小磁场产生作用。

Relationship between cosmic ray flux , climatic changes and the variations of the earth 's magnetic field intensity

宇宙射线通量和气候变迁与地球磁场强度变化的关系

But after a period of time they reorient the dances to the earth 's magnetic field .

但过了一段时间之后，它们的飞舞重新取向于地磁场。

This is explained by referring to a well-known phenomenon , the changes in the Earth 's magnetic field .

它借助于人所共知的地球磁场变化现象进行解释。

The history of the Earth 's magnetic field provides basic information on the dynamics of core mantle boundary and core convection .

地球磁场的演化历史对研究地核与地幔边界的动力学和地核内的磁流体力学过程提供了重要的信息。

The disappearance of the Earth 's magnetic field and with no doubt reversal between biology major contradiction .

地球磁场的消失和逆转无疑与生物学之间有大矛盾。