Title :
Wide dynamic range SQUID magnetometer with noise cancellation for magnetocardiogram without magnetically shielded room
Author :
Kobayashi, K. ; Murakami, T. ; Oyama, D.
Author_Institution :
Fac. of Eng., Iwate Univ., Iwate, Japan
Abstract :
A wide dynamic range SQUID magnetometer is developed in this study. This magnetometer uses the flux quanta counting method with direct-feedback noise cancellation in order to improve the signal-noise ratio in magnetocardiogram measured without the magnetically shielded room.
Keywords :
SQUID magnetometers; feedback; magnetic noise; magnetocardiography; photon counting; SQUID magnetometer; direct-feedback noise cancellation; flux quanta counting; magnetocardiogram; signal-noise ratio; Dynamic range; Magnetic flux; Magnetic noise; Noise cancellation; Noise measurement; SQUID magnetometers;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157578
