Title :
A first order gradiometer based low noise magnetoelectric sensor system
Author :
Mei, Lin ; Rupprecht, S. ; Yang, Qingxiong ; Zhang, Q.M.
Author_Institution :
Dept. of Electr. Eng., Penn State Univ., University Park, PA, USA
Abstract :
Magnetoelectric sensor belongs to the passive piezo sensors based on the coupling between magnetic and electric energies or signals. There is great scientific interest at the moment in the magnetoelectric (ME) coupling; different ME materials and structures has been studied and proposed. However most of previous study is focused on the magnetic field detection system with single ME sensor, and we present a first order gradiometer based low noise magnetoelectric sensor system in this letter; common mode noise could be eliminated based on this structure. Ultra sensitive magnetic sensor operating at room temperature used for bio signal detection like biomagnetic liver susceptometry (BLS) could be realized because of its high sensitivity and high saturation field.
Keywords :
magnetic sensors; magnetoelectric effects; magnetometers; ME materials; ME sensor; biomagnetic liver susceptometry; biosignal detection; common mode noise; electric energies; first order gradiometer; high saturation field; low noise magnetoelectric sensor system; magnetic energies; magnetic field detection system; magnetoelectric coupling; passive piezo sensors; ultra sensitive magnetic sensor; Magnetic fields; Magnetic resonance; Magnetoelectric effects; Noise; Saturation magnetization; Sensor systems; Temperature sensors;
Conference_Titel :
Device Research Conference (DRC), 2013 71st Annual
Conference_Location :
Notre Dame, IN
Print_ISBN :
978-1-4799-0811-0
DOI :
10.1109/DRC.2013.6633805
