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. 2019 Nov 27;19(23):5196. doi: 10.3390/s19235196

Figure 7.

Figure 7

Nafion-deposited MKR relative humidity sensor [36]. (a) Experimental scheme for measurement of relative humidity using the MKR with Nafion; (b) photograph of the MKR deposited by Nafion; (c) transmission spectra with variations in relative humidity; (d) wavelength shift as a function of relative humidity. The system humidity calibration curve is shown in the inset. [Reprinted/Adapted] with permission from [36] © The Optical Society.