Title :
Mixing and detection of RF signals in fibre-optic magnetostrictive sensor
Author :
Bucholtz, Frank ; Dagenais, D.M. ; Koo, K.P.
Author_Institution :
Naval Res. Lab., Optical Sci. Div., Washington, DC, USA
Abstract :
The author report the first demonstration of the detection of magnetic fields at frequencies above 50 kHz in a fibre-optic magnetometer using a technique which employs mixing of the signal with the field from a local oscillator. A flat response from 0.1 Hz to near 1.0 MHz is shown.
Keywords :
fibre optic sensors; magnetic field measurement; magnetometers; magnetostrictive devices; signal detection; 0.1 Hz to 1 MHz; 50 kHz; LO field; RF signals; fibre-optic magnetometer; fibre-optic magnetostrictive sensor; flat response; heterodyne detection; local oscillator; magnetic field detection; signal detection; signal mixing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890860
