【摘要】：在多通道超導(dǎo)量子干涉器件(SQUID)磁探測系統(tǒng)中,磁場-電壓轉(zhuǎn)換系數(shù)(沆B/沆V)是系統(tǒng)的一個重要參數(shù).由于SQUID器件和讀出電路之間不可避免地存在差異性,因此對傳感器系統(tǒng)進行系統(tǒng)標定(每個通道的單獨標定)顯得十分重要.本文采用PCB板印制圓形線圈對36通道心磁系統(tǒng)進行標定,并與傳統(tǒng)的亥姆霍茲方形線圈產(chǎn)生均勻場的標定方法進行比較.結(jié)果顯示,PCB圓形線圈的標定結(jié)果在1.46—1.73 p T·m V-1之間,亥姆霍茲方形線圈標定的結(jié)果大都在1.56—1.64 p T·m V-1之間,結(jié)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，

本文編號：2479948