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Simultaneous Strain and Temperature Sensor Based on a Fiber Mach-Zehnder Interferometer Coated with Pt by Iron Sputtering Technology.
- Source :
- Materials (1996-1944); Sep2018, Vol. 11 Issue 9, p1535, 1p, 1 Diagram, 7 Graphs
- Publication Year :
- 2018
-
Abstract
- We demonstrated a fiber in-line Mach-Zehnder interferometer (MZI) coated with platinum (Pt) for the simultaneous measurement of strain and temperature. The sensor was fabricated by splicing a section of multimode fiber (MMF) between two single mode fibers (SMFs) and the Pt coating was prepared by iron sputtering technology. Fine interference fringes of over 20 dB with a compact size of 20 mm were achieved. The experimental results of the two different resonant dips showed strain sensitivities of −2.06 pm/με and −2.21 pm/με, as well as temperature sensitivities of 55.2 pm/°C and 53.4 pm/°C, respectively. Furthermore, it was found that the Pt coating can improve the strain sensitivity significantly, resulting in an increase of about 54.5%. In addition, the sensor has advantages of easy fabrication, low cost, and high sensitivity, showing great potential for the dual-parameter sensing of strain and temperature. [ABSTRACT FROM AUTHOR]
- Subjects :
- TEMPERATURE sensors
INTERFEROMETERS
SPUTTERING (Physics)
PLATINUM
MATERIALS science
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Volume :
- 11
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Materials (1996-1944)
- Publication Type :
- Academic Journal
- Accession number :
- 131986027
- Full Text :
- https://doi.org/10.3390/ma11091535