scholarly journals Digital Signal Processing by Virtual Instrumentation of a MEMS Magnetic Field Sensor for Biomedical Applications

Sensors ◽  
2013 ◽  
Vol 13 (11) ◽  
pp. 15068-15084 ◽  
Author(s):  
Raúl Juárez-Aguirre ◽  
Saúl Domínguez-Nicolás ◽  
Elías Manjarrez ◽  
Jesús Tapia ◽  
Eduard Figueras ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Signal Processing ◽  
Digital Signal Processing ◽  
Biomedical Applications ◽  
Digital Signal ◽  
Magnetic Field Sensor ◽  
Virtual Instrumentation ◽  
Field Sensor

Research on Features Extraction of Magnetic Field Sensor Based on Kalman Filter

2011 ◽  
Vol 396-398 ◽  
pp. 2240-2244
Author(s):  
Jian Sun ◽  
Wei Guo Lin
Keyword(s):  
Magnetic Field ◽  
Signal Processing ◽  
Kalman Filter ◽  
Wire Rope ◽  
Features Extraction ◽  
Magnetic Field Sensor ◽  
Magnetic Memory ◽  
Metal Magnetic Memory ◽  
Signal Noise ◽  
Field Sensor

In this paper,a method for wire rope non-destruction testing is proposed based on metal magnetic memory technology.The identification of metal magnetic memory signal depends on Signal Noise Ratio (SNR), but the sensor and signal processing determine the SNR.The unstabitily of environment and amplifier saturation can decrease the SNR, By signal processing, the necessity of realtime filtering for SNR is demonstrated.This paper utilizes Kalman filter to analysis the signal.The principle of Kalman filter is introduced The results shows us that the SNR and reliability of system is greatly improved with this method.

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