摘要
利用单辊快淬法制备了Co Fe Ni Si B非晶薄带,经过400 A/mm2电流密度、20 ms脉冲间隔条件下的脉冲退火后具有较好的弱磁场灵敏性能。以该带材为磁敏材料,基于纵向驱动方式研制了一种巨磁阻抗(GMI)磁传感器,该磁传感器尺寸小、灵敏度高、频率响应好,±0.05 m T弱磁场范围内灵敏度可达到44.15 V/m T,在高灵敏度小型磁传感器领域具有较大的应用潜力。
Co Fe Ni Si B amorphous ribbons prepared by single-roll rapid quenching had high sensitivity in weak magnetic filed after pulse annealing with current density of 400 A / mm2 and pulse separation of 20 ms. The ribbons are used as magnetic sensitive materials to produce a kind of giant magnetic impedance（ GMI） magnetic sensors based on longitudinal drive mode. The magnetic senors are characterized by small size,high sensitivity,and good frequency response,and their sensitivity can reach 44. 15 V / m T in weak magnetic field of ± 0. 05 m T,it has a great potential application for high sensitivity miniaturized magnetic sensors.
出处
《传感器与微系统》
CSCD
2016年第8期84-86,共3页
Transducer and Microsystem Technologies
关键词
巨磁阻抗
磁传感器
钴基非晶条带
灵敏度
giant magneto-impedance（GMI）
magnetic sensor
co-based amorphous ribbon
sensitivity
