摘要
磁道钉是基于磁信号导航的自动公路系统最重要的道路引导标志。文章介绍了用作磁道钉的永磁材料的主要性能,如剩磁、矫顽力和磁能积及稳定性,并以此为主要内容研究磁道钉的永磁特性;利用三通道高斯计测试不同型号的磁道钉的磁感应强度,包括X、Y、Z方向分量,得到其磁场分布数据及分布曲面图。提出了针对测试区域中任一位置的磁感应强度X、Z分量值,利用整个测试区域的磁感应强度X、Z方向分量数据,得到横向偏差的确定方法。
Magnetic marker is one of the most important guiding signals of the Automatic Highway System based on magnetic signals. The primary performance of the permanent magnet was depicted, such as remanence, coercive force, magnetic energy accumulation and stability. Three-channel Gaussmeter were used for detecting the flux density of different type of magnetic markers, including X, Y, and Z Axis with Vector Magnitude, to gain the data of the magnet field, and X, Y, Z direction distribution chart of magnetic field by utilized Matlab. Finally, a lateral positioning algorithm was put forward, which used the X, Z direction distribution data of the whole testing range to gain the lateral deflection value for giving either X, Z components in testing range.
出处
《交通与计算机》
2007年第2期23-26,31,共5页
Computer and Communications
基金
武汉市青年科技晨光计划资助(批准号:2004500-607129)
关键词
磁道钉
磁感应强度
横向偏差
三通道高斯计
magnetic marker
flux density
lateral deflection
three-channel Gaussmeter
