| Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 10, 2015
|
|
|---|---|---|
| Article Number | 15025 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.2971/jeos.2015.15025 | |
| Published online | 17 May 2015 | |
Regular paper
Simultaneous measurement of magnetic field and temperature based on magnetic fluid-clad long period fiber grating
College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
Received:
12
February
2015
Revised:
21
April
2015
Simultaneous measurement of magnetic field and temperature is proposed and experimentalized with a magnetic fluid-clad long period fiber grating structure. Magnetic fluid is used as the surrounding material of the long period fiber grating. Both of the wavelength and intensity of the spectral resonance valley of the proposed structure can be influenced by the applied magnetic field and ambient temperature variation. A two-parameter matrix method is proposed and utilized to measure the magnetic field and temperature simultaneously. The linear relationship between the corresponding wavelength shift/intensity variation and magnetic field/temperature change is obtained at certain ranges of magnetic field and temperature, which is favorable for sensing applications.
Key words: Magnetic field sensing / temperature sensing / cross-sensitivity / magnetic fluid / two-parameter matrix method
© The Author(s) 2015. All rights reserved.
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