A Magnetic Sensor with Amorphous Wire

Sensors

Dongfeng He¹ 

关键词: magnetic sensor;    amorphous wire;    FeCoSiB;   

DOI  :  10.3390/s140610644

来源: mdpi

【 摘 要 】

Using a FeCoSiB amorphous wire and a coil wrapped around it, we have developed a sensitive magnetic sensor. When a 5 mm long amorphous wire with the diameter of 0.1 mm was used, the magnetic field noise spectrum of the sensor was about 30 pT/√Hz above 30 Hz. To show the sensitivity and the spatial resolution, the magnetic field of a thousand Japanese yen was scanned with the magnetic sensor.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.