Recent Progress of Fluxgate Magnetic Sensors: Basic Research and Application

Sensors

Xiaoqi Liao¹  Songrui Wei²  Han Zhang²  Yan Zhou³  Jianhua Pang⁴ 

[1] College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China;Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China;School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, China;Shenzhen Institute of Guangdong Ocean University, International Biological Valley, Dapeng District, Shenzhen 518060, China;

关键词: magnetic sensor;    fluxgate;    noise;    sensitivity;    calibration;   

DOI  :  10.3390/s21041500

来源: DOAJ

【 摘 要 】

Fluxgate magnetic sensors are especially important in detecting weak magnetic fields. The mechanism of a fluxgate magnetic sensor is based on Faraday’s law of electromagnetic induction. The structure of a fluxgate magnetic sensor mainly consists of excitation windings, core and sensing windings, similar to the structure of a transformer. To date, they have been applied to many fields such as geophysics and astro-observations, wearable electronic devices and non-destructive testing. In this review, we report the recent progress in both the basic research and applications of fluxgate magnetic sensors, especially in the past two years. Regarding the basic research, we focus on the progress in lowering the noise, better calibration methods and increasing the sensitivity. Concerning applications, we introduce recent work about fluxgate magnetometers on spacecraft, unmanned aerial vehicles, wearable electronic devices and defect detection in coiled tubing. Based on the above work, we hope that we can have a clearer prospect about the future research direction of fluxgate magnetic sensor.

【 授权许可】

Unknown