Development of contact less brain wave monitoring device using highly sensitiveMI sensor and its application for medical diagnosis

我们研制了一种基于高灵敏度磁阻抗(MI)传感器的梯度仪，用于非接触式脑电波测量。对头部后部磁场的测量结果表明，所研制的传感器原型系统可用于无磁屏蔽的非接触式脑电波测量或脑磁图测量。我们研究了豚鼠分离的平滑肌组织的电活动和磁活动的关系。

We have developed a gradiometer based on highly sensitive magnetoimpedance (MI) sensor aiming for non-contact brain wave measurement. The measurement results of magnetic field at the back of head support that the developed prototype sensor system is useful for non-contact brain wave measurement or magnetoencephalography measurement without magnetic shielding. We investigated relation between electrical activity and magnetic activity in a smooth muscle tissue isolated from guinea pig.