Nature-inspired position determination using inherent magnetic fields
Nature-inspired position determination using inherent magnetic fields
复制标题
利用固有磁场进行受自然启发的位置确定
DOI：
10.1142/s2339547814500149
复制
发表时间：
2014
影响因子：
4.2
通讯作者：
R. Rajamani
中科院分区：
文献类型：
--
作者：
Saber Taghvaeeyan;R. Rajamani
自然界中的许多生物，包括蝴蝶、蝾螈和鼹鼠，都利用地球固有的磁场来导航。它们利用磁力线和磁场强度的变化来确定它们的地理位置。本文试图应用类似的技术来测量我们日常生活中发现的单个铁磁物体的位置。铁磁物体周围有固有的磁场。我们在这里表明，铁磁物体周围的磁场变化可以建模纯粹使用的对象的几何形状考虑。通过利用该模型，可以使用小型廉价的磁传感器相当准确地测量对象的位置。此外，仅使用一个附加的冗余磁传感器可以消除校准位置测量系统的需要。实验结果表明，该测量系统适用于高速公路上的汽车、内燃机中的摆动活塞、气缸、液压缸以及许多机械中的运动部件等大小铁磁物体的精确位置测量。
Many creatures in nature, including butterflies, newts, and mole rats, use the Earth's inherent magnetic field for navigation. They use magnetic field lines and variations in field intensity to determine their geographical position. This paper seeks to apply similar techniques to measure the positions of individual ferromagnetic objects found all around us in everyday life. Ferromagnetic objects have inherent magnetic fields around them. We show here that the magnetic field variation around a ferromagnetic object can be modeled using purely the geometry of the object under consideration. By exploiting this model, the position of the object can be measured quite accurately using a small inexpensive magnetic sensor. Further, the use of just one additional redundant magnetic sensor can eliminate the need to calibrate the position measurement system. As demonstrated in the paper through a series of experimental results, the developed measurement system is applicable to accurate position measurement of small and large ferromagnetic objects, including cars on highways, oscillating pistons in internal combustion engines, pneumatic cylinders, hydraulic cylinders, as well as moving parts in many machines.