A Study on the Development of a Novel Pressure Sensor based on Nano Carbon Piezoresistive Composite by Using 3D Printing

3D 프린팅을 활용한 탄소 나노 튜브 전왜성 복합소재 기반 압력 센서 개발 연구

  • Kim, Sung Yong (Dept. of Mechanical Design & Engineering, Pukyong Nat'l Univ.) ;
  • Kang, Inpil (Dept. of Mechanical Design & Engineering, Pukyong Nat'l Univ.)
  • 김성용 (부경대학교 기계설계공학과) ;
  • 강인필 (부경대학교 기계설계공학과)
  • Received : 2016.08.08
  • Accepted : 2016.10.28
  • Published : 2017.03.01


This paper presents an ongoing study to develop a novel pressure sensor by means of a Nano Carbon Piezoresistive Composite (NCPC). The sensor was fabricated using the 3D printing process. We designed a miniaturized cantilever-type sensor electrode to improve the pressure sensing performance and utilized a 3D printer to build a small-sized body. The sensor electrode was made of 2 wt% MWCNT/epoxy piezoresistive nano-composite, and the sensor body was encapsulated with a pipe plug cap for easy installation to any pressure system. The piezoresistivity responses of the sensor were converted into stable voltage outputs by using a signal processing system, which is similar to a conventional foil strain gauge. We evaluated the pressure-sensing performances using a pressure calibrator in the lab environment. The 3D-printed cantilever electrode pressure sensor showed linear voltage outputs of up to 16,500 KPa, which is a 200% improvement in the pressure sensing range when compared with the bulk-type electrode used in our previous work.


Carbon Nanotube;Pressure Sensor;Smart Nano Composites;3D Printing;Offshore Plant


Grant : LNG 추진 선박 엔진용 GVT(Gas Valve Train) 국산화 개발사업

Supported by : 산업통산자원부


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