Title :
All-fibre SAW sensor with frequency tuning capability
Author :
Vaez Iravani, M.
Author_Institution :
University College London, Department of Electrical & Electronic Engineering, London, UK
Abstract :
A new sensor for detecting surface acoustic waves (SAWs) is presented. The system uses single-mode optical fibres throughout, and requires only one 3 dB directional coupler. The sensor is tunable to acoustic frequencies above 8 MHz. The new system can be realised in a particularly compact form, and could form the basis of a miniature instrument.
Keywords :
acoustic transducers; fibre optic sensors; surface acoustic wave devices; tuning; SAW sensor; above 8 MHz; directional coupler; frequency tuning; single-mode optical fibres; surface acoustic waves;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860205
