Tohoku University Technology: Magnetic sensor: T19-383
Tunnel magneto-resistive sensor (TMR sensor) with high sensitivity and accuracy
Various magnetic sensors such as the Hall sensor, are widely used for the realization of an advanced IoT society. In particular, magnetic sensors based on the tunnel magnetoresistance effect (TMR sensor) discovered at Tohoku University has made dramatic progress in increasing sensitivity, making it possible to detect a weak magnetic field such as bio-magnetic field. However, the conventional TMR sensor did not achieve both high sensitivity and accuracy. This invention is able to provide a TMR sensor with extremely high linearity output which is necessary to achieve high sensitivity and accuracy, by controlling the higher-order magnetic anisotropy of the used ferromagnetic material.
- Company：Tohoku Techno Arch Co., Ltd.
- Price：Other
