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http://dx.doi.org/10.7839/ksfc.2016.13.1.043

A Study on Piezoresistive Characteristics of Smart Nano Composites based on Carbon Nanotubes for a Novel Pressure Sensor  

Kim, Sung Yong (Department of Mechanical Design & Engineering, Pukyong National University)
Kim, Hyun Ho (Department of Mechanical Design & Engineering, Pukyong National University)
Choi, Baek Gyu (Department of Mechanical Design & Engineering, Pukyong National University)
Kang, In Hyuk (Department of Mechanical Design & Engineering, Pukyong National University)
Lee, Ill Yeong (Department of Mechanical Design & Engineering, Pukyong National University)
Kang, In Pil (Department of Mechanical Design & Engineering, Pukyong National University)
Publication Information
Journal of Drive and Control / v.13, no.1, 2016 , pp. 43-48 More about this Journal
Abstract
This paper presents a preliminary study on the pressure sensing characteristics of smart nano composites made of MWCNT (multi-walled carbon nanotube) to develop a novel pressure sensor. We fabricated the composite pressure sensor by using a solution casting process. Made of carbon smart nano composites, the sensor works by means of piezoresistivity under pressure. We built a signal processing system similar to a conventional strain gage system. The sensor voltage outputs during the experiment for the pressure sensor and the resistance changes of the MWCNT as well as the epoxy based on the smart nano composite under static pressure were fairly stable and showed quite consistent responses under lab level tests. We confirmed that the response time characteristics of MWCNT nano composites with epoxy were faster than the MWCNT/EPDM sensor under static loads.
Keywords
Carbon nano tube; Pressure sensor; Piezoresistivity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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