多通道心磁系统标定方法研究
发布时间：2019-05-18 11:16
【摘要】：在多通道超导量子干涉器件(SQUID)磁探测系统中,磁场-电压转换系数(沆B/沆V)是系统的一个重要参数.由于SQUID器件和读出电路之间不可避免地存在差异性,因此对传感器系统进行系统标定(每个通道的单独标定)显得十分重要.本文采用PCB板印制圆形线圈对36通道心磁系统进行标定,并与传统的亥姆霍兹方形线圈产生均匀场的标定方法进行比较.结果显示,PCB圆形线圈的标定结果在1.46—1.73 p T·m V-1之间,亥姆霍兹方形线圈标定的结果大都在1.56—1.64 p T·m V-1之间,结果基本一致.
[Abstract]:In the multi-channel superconducting quantum interference device (SQUID) magnetic detection system, the magnetic field-voltage conversion coefficient (Kang B / Kang V) is an important parameter of the system. Because of the inevitable difference between SQUID devices and readout circuits, it is very important to calibrate the sensor system (the separate calibration of each channel). In this paper, the 36 channel cardiomagnetism system is calibrated by PCB printed circular coil, and compared with the traditional calibration method of Helmholtz square coil to generate uniform field. The results show that the calibration results of PCB circular coil and Helmholtz square coil are 1.46 鈮，
本文编号：2479948
[Abstract]:In the multi-channel superconducting quantum interference device (SQUID) magnetic detection system, the magnetic field-voltage conversion coefficient (Kang B / Kang V) is an important parameter of the system. Because of the inevitable difference between SQUID devices and readout circuits, it is very important to calibrate the sensor system (the separate calibration of each channel). In this paper, the 36 channel cardiomagnetism system is calibrated by PCB printed circular coil, and compared with the traditional calibration method of Helmholtz square coil to generate uniform field. The results show that the calibration results of PCB circular coil and Helmholtz square coil are 1.46 鈮，
本文编号：2479948
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