NSSC OpenIR  > 空间科学部
Resolution limit of anisotropic magnetoresistance(AMR) based vector magnetometer
Qiu, Fuwei1,2; Wang, Jindong1; Zhang, Yiteng1; Yang, Gen3; Weng, Chenghan1
Department空间科学部
Source PublicationSENSORS AND ACTUATORS A-PHYSICAL
2018
Volume280Pages:61-67
DOI10.1016/j.sna.2018.07.031
ISSN0924-4247
Language英语
KeywordAMR Resolution Noise Magnetoresistive magnetometer
AbstractAn AMR based vector magnetometer was developed for the Separated Payload program to explore the field-aligned currents in Earth polar region. It has the advantages of low volume and CubeSat platform compatible mass while still maintains adequate resolution. In order to determine the resolution limit of AMR based magnetometer, we measured the sensor's intrinsic noise. This characteristic was in conflict with our prototype magnetoresistive magnetometer since phase sensitive detection(PSD) could only reject noise from interfacing circuit without affecting the signal to be measured. We believe that besides flipping the magnetization direction periodically, the set/reset technique also functions as a modulation to the magnetic field. The sensor operates at the modulation frequency and its noise level is much lower than that at low frequency. This technique is analyzed theoretically and a description from frequency perspective is given. By modulating the signal beyond corner frequency of the sensor and amplifier, both the sensor and interfacing circuit work in white noise region. Then we calculate the theoretical resolution limit of HMC1001 based magnetometer and the result shows that the noise floor is 24.9 pT/Hz(0.5)@1 Hz under 5 V bias with proper -matched amplifier. (C) 2018 Elsevier B.V. All rights reserved.
Indexed BySCI ; EI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6548
Collection空间科学部
Affiliation1.State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China;
2.University of Chinese Academy of Sciences, Beijing, China;
3.Key laboratory of electronics and information technology for space systems, National Space Science Center, Chinese Academy of Sciences, Beijing, China
Recommended Citation
GB/T 7714
Qiu, Fuwei,Wang, Jindong,Zhang, Yiteng,et al. Resolution limit of anisotropic magnetoresistance(AMR) based vector magnetometer[J]. SENSORS AND ACTUATORS A-PHYSICAL,2018,280:61-67.
APA Qiu, Fuwei,Wang, Jindong,Zhang, Yiteng,Yang, Gen,&Weng, Chenghan.(2018).Resolution limit of anisotropic magnetoresistance(AMR) based vector magnetometer.SENSORS AND ACTUATORS A-PHYSICAL,280,61-67.
MLA Qiu, Fuwei,et al."Resolution limit of anisotropic magnetoresistance(AMR) based vector magnetometer".SENSORS AND ACTUATORS A-PHYSICAL 280(2018):61-67.
Files in This Item:
File Name/Size DocType Version Access License
2018S092442471732141(2479KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Qiu, Fuwei]'s Articles
[Wang, Jindong]'s Articles
[Zhang, Yiteng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Qiu, Fuwei]'s Articles
[Wang, Jindong]'s Articles
[Zhang, Yiteng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Qiu, Fuwei]'s Articles
[Wang, Jindong]'s Articles
[Zhang, Yiteng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.