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| Content Provider | IET Digital Library |
|---|---|
| Author | Bhardwaj, Vanita Singh, Vinod Kumar |
| Abstract | In this study, an optical fibre magnetic field sensor is experimentally demonstrated using chemical etched multimode fibre sandwiched between two single mode fibres. The obtained result of the magnetic field and refractive index response shows that the decreasing fibre diameter in the sensing region plays an important role to enhance the sensitivity of the device. The magnetic field sensing is based on a tunable refractive index (RI) property of magnetic fluid infiltrated into the capillary tube. The sensing system is verified by testing RI of different concentrations of sodium chloride (NaCl) solution before sealing in capillary tube. Experimental results show that the sensor with taper fibre diameter of 45 µm has relatively high magnetic field sensitivity of ∼0.993 dB/mT ranging from 0 to 6 mT. The proposed devices find potential applications in magnetic field sensing. |
| Starting Page | 248 |
| Ending Page | 252 |
| Page Count | 5 |
| ISSN | 17518768 |
| Volume Number | 11 |
| e-ISSN | 17518776 |
| Issue Number | Issue 6, Dec (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-opt/11/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-opt.2016.0014 |
| Journal | IET Optoelectronics |
| Publisher Date | 2017-08-18 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Capillary Tube Chemical Etched Multimode Fibre Etching Fibre Diameter Fibre Gyros Fibre Optic Sonsor Magnetic Field Measurement Magnetic Fluid Magnetic Flux Density 0 MT to 6 MT Magnetic Instrument And Technique Magnetic Variables Measurement Magneto-optical Device Magneto-optical Sonsor Optical Fibre Magnetic Field Sensor Optical Instrument And Technique Refractive Index Refractive Index Response Single Mode Fibre Sodium Chloride Solution Concentrations Taper Fibre Diameter Tunable Refractive Index Property |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering |
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