THE POSITIONING PROBLEM IN BIOMAGNETIC MEASUREMENTS - A SOLUTION FOR ARRAYS OF SUPERCONDUCTING SENSORS
THE POSITIONING PROBLEM IN BIOMAGNETIC MEASUREMENTS - A SOLUTION FOR ARRAYS OF SUPERCONDUCTING SENSORS
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DOI：
10.1109/tmag.1987.1064889
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发表时间：
1987-03-01
影响因子：
2.1
通讯作者：
ROMANI, GL
中科院分区：
文献类型：
--
作者：
ERNE, SN;NARICI, L;ROMANI, GL
我们提出了一种系统来自动测量受试者头部在参考框架中的位置，该参考框架由一组超导生物磁传感器识别（同样的程序可以用于心脏研究，很少或不需要修改）。该系统由小的参考线圈（磁偶极子）组成，适当地放置在受试者的头部。线圈由已知的电流信号驱动。产生的磁场由超导阵列测量，并通过适当的算法解码，该算法计算线圈相对于阵列本身的相对位置。本文给出了该系统的原理图。对不同类型的超导探测线圈进行了计算机模拟，并给出了模拟结果。
We propose a system to measure automatically the location of the subject's head in the reference frame identified by an array of superconducting biomagnetic sensors (the same procedure may be employed for Cardiac studies with little or no modification). The system consists of small reference coils (magnetic dipoles) to be properly positioned on the subject's head. The coils are driven by a known current signal. The generated magnetic fields are measured by the superconducting array and decoded by a suitable algorhythm which calculates the relative position of the coils with respect to the array itself. In this paper we present a schematic of the system. The results of a computer simulation, carried out for different types of superconducting detection coils are also illustrated.