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논문 기본 정보

자료유형
학술저널
저자정보
이원준 (서울과학기술대학교) 이상훈 (서울과학기술대학교)
저널정보
한국센서학회 센서학회지 센서학회지 제33권 제3호
발행연도
2024.5
수록면
165 - 172 (8page)

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초록· 키워드

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In this study, we investigated the detection properties of piezoresistive carbon nanotubes/polydimethylsiloxane (CNT/PDMS) deviceswith porous structures under applied pressure. The device, having dimensions of 10 mm × 10 mm × 5 mm, was fabricated with a poros ity of 74.5%. To fabricate piezoresistive CNT/PDMS devices, CNTs were added using two different methods. In the first method, theCNTs were mixed with PDMS before the fabrication of the porous structure, while in the second, the CNTs were coated after the fab rication of the porous structure. Various detection properties of the fabricated devices were examined at different applied pressures. TheCNT-coated device exhibited stable outputs with lesser variation than the CNT-mixed device. Moreover, the CNT-coated device exhib ited improved reaction properties. The response time of the CNT-coated device was 1 min, which was approximately about 20 timesfaster than that of the CNT-mixed device. Considering these properties, CNT-coated devices are more suitable for sensing devices. Toverify the CNT-coated device as a real sensor, it was applied to the gripping sensor system. A multichannel sensor system was usedto measure the pressure distribution of the gripping sensor system. Under various gripping conditions, this system successfully measuredthe distributed pressures and exhibited stable dynamic responses.

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