Temperature measurement of supercapacitor with the use of ZnO coated microsphere-based fiber-optic sensor - 90 Celsius degrees

Application of a microsphere-based fiber-optic sensor with 200 nm zinc oxide (ZnO) coating, deposited by Atomic Layer Deposition (ALD) method, for temperature measurements of supercapasitor, is presented.  Internal temperature of the supercapacitor is investigated in the range between 30°C and 90°C. The supercapacitor temperature was investigated using interferometric setup consisting of broad band light source with a central wavelength of 1310 ±10 nm (SLD-1310-18-W, FiberLabs Inc., Fujimi), which generates an optical signal.During the measurements, the integrity of the sensor head can be simultaneously controlled. The study shows the temperature of supercapacitor can be successfully monitored by embedding the microsphere-based sensor inside the capacitor.
 The obtained signal is gathered by the Optical Spectrum Analyzer (OSA, Ando AQ6319, Yokohama, Japan). In the data set there are information about optical spectrum analyzer settings and:
the wavelength of measurement and after comma the measured  the optical power 
  The microsphere-based fiber-optic sensor embedded in the supercapacitor