Title :
Optical readout of resonant quartz sensors
Author :
Soref, Richard A.
Author_Institution :
US Air Force, Rome Air Development Center, ESO, Bedford, USA
Abstract :
A force-sensitive AT-cut quartz disc produced variable-frequency optical modulation with a depth of 8% at the 2 MHz fundamental resonance. The elements of a fibre-optic sensor were demonstrated, including optical powering of the oscillator and optical modulation at the difference frequency between a reference crystal and a sensor crystal.
Keywords :
crystal resonators; optical modulation; quartz; 2 MHz fundamental resonance; force-sensitive AT-cut quartz disc; optical powering; optical readout; oscillator; reference crystal; resonant quartz sensors; sensor crystal; variable-frequency optical modulation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840194
