日本三洋公司和三洋电机中央研究所共同研制出 MS—F 型磁敏传感器。其结构是在永久磁铁产生的磁场中装有锑化铟磁敏元件,在金属外壳内装有树脂模。能以很高的灵敏度,检测出周围微小的磁场,并可辨别用磁性墨水写出的文字等。其特点如下:①体积小;②用金属封装,提高了密封效果。采用磁偏压方法,使信噪比提高了3dB;③它的形状和调音用的磁头相同,可与磁头的器件调 Japan’s Sanyo Electric and Sanyo Electric Institute jointly developed MS-F-type magnetic sensor. Its structure is in the magnetic field generated by a permanent magnet with indium antimonide magnetoresistive components, the metal shell with a resin mold. With a high degree of sensitivity, the detection of tiny magnetic fields around, and can distinguish the use of magnetic ink to write the text and so on. Its features are as follows: ① small size; ② metal package, improved sealing effect. Using magnetic bias method, the signal to noise ratio increased by 3dB; ③ its shape and tune the same head, with the head of the device tune