DocumentCode
3352691
Title
Research of weak signal conditioning measurement method
Author
Ge, Ziqiang ; Dong, Haobin ; Tan, Chao
Author_Institution
Fac. of Mech. & Electron. Inf., China Univ. of Geosci., Wuhan, China
fYear
2010
fDate
26-28 June 2010
Firstpage
5647
Lastpage
5649
Abstract
For improving the measuring accuracy and stability of weak magnetic signal of sensor output, based on principles of the proton magnetometer, signal detecting conditioning circuit used analog circuits technology is designed. The feasibility of conditioning circuit is analyzed, the measured data is obtained. In current conditions, The results showed that the signal to noise ratio achieved 30dB.It can measure geomagnetic field in precision and mobile mode. And the error is less than 2nT.
Keywords
analogue-digital conversion; signal processing equipment; stability; analog circuits technology; geomagnetic field; magnetic signal stability; mobile mode; proton magnetometer; sensor output signal; weak signal conditioning measurement method; Analog circuits; Circuit analysis; Circuit stability; Magnetic circuits; Magnetic field measurement; Magnetic sensors; Magnetometers; Protons; Signal design; Signal detection; conditioning; geomagnetic field; weak signal;
fLanguage
English
Publisher
ieee
Conference_Titel
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location
Wuhan
Print_ISBN
978-1-4244-7737-1
Type
conf
DOI
10.1109/MACE.2010.5535841
Filename
5535841
Link To Document