Title :
Fundamental limit to the performance of fibre-optic metallic glass DC magnetometers
Author :
Mermelstein, M.D.
Author_Institution :
Geo-Centers, Inc., Newton Upper Falls, USA
Abstract :
Thermal strains and eddy currents impose a fundamental limit to the minimum detectable field capability of metallic glass based fibre-optic DC magnetometers. A room-temperature magnetometer operating with a resonance Q of 100 exhibits a theoretical minimum detectable field of ~3×10¿11 Oe in the DC to 1 Hz bandwidth.
Keywords :
fibre optic sensors; magnetic field measurement; magnetometers; metallic glasses; dynamic response; eddy currents; fibre-optic metallic glass DC magnetometers; minimum detectable field; performance limit; resonance; thermal strains;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850832
