publication . Article . 2016

Mathematical Model for a Novel Cryogenic Flow Sensor Using Fibre Bragg Gratings

Thekkethil, S.R.; Reby Roy, K.E.; Thomas, R.J.; Neumann, H.; Ramalingam, R.;
Open Access English
  • Published: 01 Jan 2016 Journal: Procedia Technology, volume 24, pages 477-484 (issn: 2212-0173, Copyright policy)
  • Publisher: Elsevier BV
Abstract
In this work, a mathematical model is presented for a newly developed cryogenic flow meter which is based on fibre Bragg grating (FBG) principle. The principle of operation is to use the viscous drag force induced by a flowing fluid on an optical fibre placed transverse to the flow. An optical fibre will have a 5 mm long grating element inscribed in it and will be placed so that the sensor is at the centre of the pipe. The fibre will act as the bluff body, while the FBG sensor will pick up the bending strain induced in the fibre due to the drag force. The amount of bending strain which can be measured as a shift in Bragg wavelength can be calibrated to provide t...
Subjects
arxiv: Physics::OpticsPhysics::Fluid Dynamics
free text keywords: Fibre Bragg gratings, Flow meter, Low temperature measurement, Sensors, Cryogenics, Physics, ddc:530
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publication . Article . 2016

Mathematical Model for a Novel Cryogenic Flow Sensor Using Fibre Bragg Gratings

Thekkethil, S.R.; Reby Roy, K.E.; Thomas, R.J.; Neumann, H.; Ramalingam, R.;