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2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science, 2020

DOI: 10.23919/ursigass49373.2020.9232298



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NFC based Polymer Strain Sensor for Smart Packaging

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This paper is available in a repository.

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This paper presents a polymer strain sensor integrated with an NFC tag to detect strain semi-quantitatively. The strain sensor is fabricated using flexible and transparent polymer Polydimethylsiloxane (PDMS) microchannel having conductive polymer poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) as an active material. The sensor was tested with different bending conditions and it was found that the resistance increases with higher bending. A maximum of 3 order change in resistance was observed for 100LI bending. The sensor was finally tested using a custom-developed passive NFC tag having an LED connected in series with the strain sensor and powered from the reader via the NFC antenna in the tag.