2017 Volume 137 Issue 8 Pages 448-453
Recently developed fundamental mode orthogonal fluxgate (FM-OFG) offers high sensitivity sensing systems for magnetic signals with the amplitude ranging 1pT∼10µT. The mechanism of the FM-OFG is reviewed briefly and various sensors made based on it are presented. Magnetic field from human heart is measured with an array of 36 channels of FM-OFG magnetometers. Also shown are several applications using gradiometers built by extending a magnetometer design, including detection of lightening residue and of magnetic nanoparticle sample.
The transactions of the Institute of Electrical Engineers of Japan.A
The Journal of the Institute of Electrical Engineers of Japan