三维高精度霍尔探头的位置和角度标定  

Calibration for the non-alignment and the non-orthogonality of a 3D Hall-probe

作　　者：张伟[1] 周巧根[1] 王宏飞[1] 陆杰[1] 

机构地区：[1]中国科学院上海应用物理研究所,上海201800

出　　处：《核技术》2010年第11期801-805,共5页Nuclear Techniques

摘　　要：三维霍尔探头是测量空间三维磁场的重要手段,然而,三个探头位置间存在的空间距离以及不严格正交产生的角度偏差,会影响磁场测量的准确性。本文介绍上海光源(SSRF)使用楔形块磁铁做三探头间相对位置的标定以及使用APPLE-II结构的可变椭圆极化波荡器产生各种不同分布的周期性三维磁场,为三维霍尔探头的角度标定提供了方便,从而保证了测量结果的可靠性。The 3-dimensional Hall probe composed of three planar hall sensors is a popular method to measure magnetic fields with high precision. But the non-alignment and non-orthogonality between the three hall sensors will influence the accuracy of the magnetic field measurement, and must be calibrated in advance. Various types of periodic magnetic fields provided by EPU 100, a variable elliptical polarizing undulator of APPLE-II structure at Shanghai Synchrotron Radiation Facility （SSRF）, was used to calibrate the non-orthogonality between the three hall sensors of a 3D hall probe. In this paper, we describe the method and the procedure of the calibration in detail.

关 键 词：三维霍尔探头 标定 可变椭圆极化波荡器 

分 类 号：O441.2[理学—电磁学]