Fiber Bragg grating-based high temperature sensor and its low cost interrogation system with enhanced resolution

• Autorzy: Mamidi V R , Kamineni S , Ravinuthala L N S P , Madhuvarasu S S , Thumu V R , Pachava V R , Putha K

Identyfikatory

DOI

10.5277/oa140210

• Języki publikacji: EN

Abstrakty

EN

A fiber Brag grating-based high temperature sensor together with a low cost, high speed and compact size interrogation system using a long period grating was designed, developed and tested. The designed sensor measures the temperature from room temperature to 550 °C. The sensor head was configured by encapsulating an fiber Brag grating (type-I) of Bragg resonance wavelength at 1552.88 nm in a capillary tube made of copper. Long period grating with peak transmission loss at 1550 nm was employed to convert the wavelength information from fiber Brag grating into an intensity modulated signal. Temperature related optical intensity information was again converted into its equivalent electrical signal by using a photodiode. The achieved resolution of the sensor was found to be 0.5 °C.

Słowa kluczowe

EN

fiber Bragg grating (FBG); long period grating; fiber optic temperature sensor; optical intensity modulation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2014
• Tom: Vol. 44, nr 2
• Strony: 299--308
• Opis fizyczny: Bibliogr. 18 poz., rys., tab., wykr.

Twórcy

autor

Mamidi V R

• Department of Physics, National Institute of Technology, Warangal-506004, India

autor

Kamineni S

• Department of Physics, National Institute of Technology, Warangal-506004, India
• Department of Physics, National Institute of Technology, Warangal-506004, India

autor

Ravinuthala L N S P

• Department of Physics, National Institute of Technology, Warangal-506004, India

autor

Madhuvarasu S S

• Department of Physics, National Institute of Technology, Warangal-506004, India

autor

Thumu V R

• Department of Physics, National Institute of Technology, Warangal-506004, India

autor

Pachava V R

• Department of Physics, National Institute of Technology, Warangal-506004, India

autor

Putha K

• Department of Physics, National Institute of Technology, Warangal-506004, India

Bibliografia

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