基于原子磁力计的穿戴式脑磁图动态测量研究

陈春巧,张欣,郭清乾,徐佳玉,冯晓宇,常严,胡涛,杨晓冬

Moving Wearable Magnetoencephalography Measurement Study Based on Optically-pumped Magnetometer

Chun-qiao CHEN,Xin ZHANG,Qing-qian GUO,Jia-yu XU,Xiao-yu FENG,Yan CHANG,Tao HU,Xiao-dong YANG

表1 补偿线圈系数实测值

Table 1 Measured coefficients of field nulling coils

匀场线圈 一阶梯度线圈 Bx By Bz dBz/dx dBz/dy dBz/dz dBy/dx 补偿线圈系数 1.37 nT/mA 1.84 nT/mA 9.74 nT/mA 11.62 nT/m/mA 13.17 nT/m/mA 52.24 nT/m/mA 5.22 nT/m/mA