Magnetoelectric sensor with miniature universal tunable bias magnetic circuit

作者：Shi Zhan^*; Tong Yongshuai; Deng Shuwen; Xue Hao; Yang Shuiyuan; Lu Yong; Wang Cuiping; Liu Xingjun

来源：Applied Physics Letters, 2013, 103(3): 032903.

DOI：10.1063/1.4815986

This paper presents a miniature alternating magnetic field sensor made from magnetoelectric (ME) laminated materials with a universal tunable bias magnetic circuit. By adjusting the width of the bypass passage in the bias magnetic circuit, the magnetic flux in the ME materials could be tuned and make the ME sensor work under the optimal bias magnetic field. In our design, the sensor's dimension is as small as 8 mm along the detecting direction. Due to the excellent linearity when measuring low frequency alternating magnetic fields of 50 Hz, this miniature sensor is ideally suited for power line current measurement.

• 出版日期2013-7-15
• 单位厦门大学