Applications of Fiber Optic Grating Technology to Multi-Parameter Measurement

Abstract In this article, approaches reported in the literature for multi-parameter measurement relying on fiber grating technology are reviewed. Due to its importance, the particular case of temperature/strain simultaneous measurement is addressed in further detail, as well as the techniques and sensing heads for temperature-independent strain measurement. Specific criteria are also proposed for sensing head classification in the context of multi-parameter measurement. Keywords: fiber optic sensorsBragg gratingslong period gratingmulti-parameter measurement