DEVELOPMENT OF ARTIFICIAL SENSORY DEVICE USING THIN-FILM MAGNETIC SEMICONDUCTOR

人类的光、声、触觉、味觉、嗅觉等五种感官是维持生命的基础。薄膜磁性半导体TMS具有磁性和半导体特性。TMS的磁性能响应光、声和触觉刺激，而半导体特性则取决于味觉和气味。本研究讨论了经颅磁刺激的制备及其在人工感觉装置上的应用。TMS采用真空蒸发铁、锰、锌或印刷磁性半导体浆料制备。涂有炭黑或铂黑等辐射吸收剂的TMS吸收光能，使TMS温度升高，起到光传感器的作用。宽频率范围的磁声传感器由圆盘TMS、拾取线圈和磁体构成。将TMS与硅橡胶混合制成的触觉传感装置具有与皮肤一样的柔韧性，并随外界压力而改变磁阻。多通道经颅磁刺激是蔬菜、水果、清酒、咖啡、酒和酱油的味觉传感器。这些样品以雷达图的形式显示，因此在口味上有明显的区别。此外，经颅磁刺激作为一种气味传感器，对清酒、咖啡、酒和酱油也有反应。

The five senses related with light, sound, touch, taste and odor in human beings contribute to supporting life. The thin-film magnetic semiconductor TMS has both magnetic and semiconducting characteristics. The TMS's magnetic property responds to photo, acoustic and touch stimulus, and semiconductor characteristic depends on taste and odor. This research has discussed the preparation of TMS and application to artificial sensory devices. The TMS is prepared by vacuum evaporate Fe Mn and Zn or printed magnetic semiconductor paste. The TMS painted with radiant flux absorbent such as carbon black or platinum black absorbs light energy and makes TMS temperature to rise, so it acts as a photo sensor. The magnetic acoustic sensor with a wide frequency range is constructed with a disk TMS,a pickup coil and a magnet. The touch sensory device which mixed the TMS and silicon rubber has flexibility as the skin, and changes reluctance with external pressure. The multichannel TMS is used as the taste sensor on vegetables, fruits, sake, coffee, wine and soy sauce. These samples are shown as a radar chart, so a clear discrimination in taste is made. Furthermore, the TMS as an odor sensor has functions responding to sake, coffee, wine and soy sauce.