Title :
Strain and temperature discrimination using PCF Bragg-gratings filled with different liquids
Author :
Naeem, Khurram ; Youngjoo Chung
Author_Institution :
Sch. of Inf. & Commun., Gwangju Inst. of Sci. & Technol. (GIST), Gwangju, South Korea
Abstract :
A new photonic crystal fiber (PCF) Bragg grating sensor´s scheme is demonstrated for simultaneous measurement of strain and temperature. By writing gratings with similar Bragg wavelengths into two sections of PCF, and filling one of them with alcohol, different temperature sensitivities are obtained while leave the strain sensitivities similar. These gratings are then spliced to form a sensor head, and resolutions are achieved to be 95.26 με and 4.37 °C, respectively.
Keywords :
Bragg gratings; fibre optic sensors; holey fibres; organic compounds; photonic crystals; strain measurement; temperature measurement; PCF Bragg gratings; alcohol; liquids; photonic crystal fiber; strain measurement; strain sensitivities; temperature measurement; Fiber gratings; Strain; Temperature measurement; Temperature sensors; Wavelength measurement;
Conference_Titel :
Optical Fibre Technology, 2014 OptoElectronics and Communication Conference and Australian Conference on
Conference_Location :
Melbourne, VIC
