公开(公告)号：US20060041398A1

公开(公告)日：2006-02-23

申请号：US10523396

申请日：2004-11-04

申请人： Richard Alexander ,  Richard Manley ,  Carol Walker

发明人： Richard Alexander ,  Richard Manley ,  Carol Walker

IPC分类号： G06F15/00

CPC分类号： G01D5/145

摘要： An increased precision position sensor comprises a first magnetic field sensing device; a second magnetic field sensing device; and a processor, the processor further comprising a calibrator; a mathematical model to predict the magnetic field at a given position relative to the object; and an estimator algorithm to compare the measured magnetic field within the predicted magnetic field, thereby calculating the most likely position of the position sensor relative to the magnetic object. A position sensor in accordance with the invention is capable of locating the axis of a cylindrical magnetic object to within ±0.5 mm through 70 mm thick aluminium, and is expected to find application, in the aerospace industry, or other industries where high precision during manufacture is required. The invention may be conveniently embodied in a portable, handheld device.

摘要翻译： 增加的精密位置传感器包括第一磁场感测装置; 第二磁场感测装置; 和处理器，所述处理器还包括校准器; 用于预测相对于物体的给定位置处的磁场的数学模型; 以及用于比较预测磁场内的测量磁场的估计器算法，由此计算位置传感器相对于磁性物体的最可能的位置。 根据本发明的位置传感器能够将圆柱形磁性物体的轴线定位在±0.5mm至70mm厚的铝之间，并且预期在航空航天工业或其他制造中具有高精度的其它工业中应用 是必须的。 本发明可以方便地实现在便携式手持设备中。