磁场梯度 meaning in English
gradient magnetic field
magnetic field gradient
magnetic gradient
Examples
- When the rf pulse is combined with magnetic field gradients , a spatially encoded signal is produced that can be detected and translated into images
当射频脉冲与磁场梯度联合起来时，我们可以探测到一个空间编码信号的产生并且将它转变成图像。 - The system has its own style . the trapping beams can be independently adjustable and three double - passed circularly polarized cooling / trapping beams intersect at the center of mot . about 1 107 cesium atoms with equivalent temperature of ~ 270 k are successfully trapped in our vcmot
在每束冷却俘获光的光强约4 . 9mw cm ~ 2 、失谐量为- 10mhz 、轴向磁场梯度约11 . 6gauss cm的条件下得到的冷原子样品中典型的原子数约1 10 ~ 7个，温度约270 k左右。 - Results show that the levitation force is generated between the high temperature superconductor and the magnetic field under the critical temperature . the value of the levitation force is determined by the temperature and the gradient of magnetic field . that is the smaller of the gap , the larger of the levitation force when the temperature is fixed , and the value of the levitation force is an exponential function of the gap
研究表明，当高温超导体的温度低于其临界温度时，在磁场中开始受到力的作用；受到的悬浮力大小由温度和磁场梯度共同决定；即温度一定时，悬浮间距越小，对应的磁场梯度越大，悬浮力就越大，力的大小与悬浮间距成指数关系；而当悬浮间距一定时，温度越低，对应的悬浮力也越大，且超导体刚进入超导态的一段温度区间悬浮力增大最快。 - In view of the fact that there is often a gradient in the external magnetic field in true magnetic separation equipment , and its direction is often not identical with that of magnetic field , a formula of the magnetic force exerting on the magnetic particles is deduced and the factors influencing the magnetic force are analysed
考虑实际磁选设备中外部磁场常有梯度，并且磁场梯度方向常与磁场方向不一致的情况，推导出了磁性矿粒所受磁力公式，分析了影响磁力的因素。 - Magnetic anomaly detection is a kind of magnetic technology of target - detection . it is developed with the progress of magnetic sensors , which is based on the phenomena that ferrous objects disturbs the magnetic lines of force of the earth . so we can gain the neccesary informatin of the target through processing the data of the magnetic anomaly signatures . this technology has a wide perspective in the future . this paper will study the technoly of mad through a lot of experiment . the platform for the experiment is made
本论文通过大量实验对磁异信号目标探测技术进行了研究,研制了磁异信号目标探测技术试验平台,利用amr磁阻传感器开发了提取磁异信号特征量?磁梯度计,并基于磁场梯度计通过实验对模拟磁性目标的磁异常场的分布进行了研究,用图示法将其分布特征表现出来,发现了磁异信号测量的最佳角度,并给出了理论分析和结论。