We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Soft CNT-Polymer Composites for High Pressure Sensors.
- Authors
Eisape, Adebayo; Rennoll, Valerie; Van Volkenburg, Tessa; Xia, Zhiyong; West, James E.; Kang, Sung Hoon
- Abstract
Carbon–polymer composite-based pressure sensors have many attractive features, including low cost, easy integration, and facile fabrication. Previous studies on carbon–polymer composite sensors focused on very high sensitivities for low pressure ranges (10 s of kPa), which saturate quickly at higher pressures and thus are ill-suited to measure the high pressure ranges found in various applications, including those in underwater (>1 atm, 101 kPa) and industrial environments. Current sensors designed for high pressure environments are often difficult to fabricate, expensive, and, similarly to their low-pressure counterparts, have a narrow sensing range. To address these issues, this work reports the design, synthesis, characterization, and analysis of high-pressure TPU-MWCNT based composite sensors, which detect pressures from 0.5 MPa (4.9 atm) to over 10 MPa (98.7 atm). In this study, the typical approach to improve sensitivity by increasing conductive additive concentration was found to decrease sensor performance at elevated pressures. It is shown that a better approach to elevated pressure sensitivity is to increase sensor response range by decreasing the MWCNT weight percentage, which improves sensing range and resolution. Such sensors can be useful for measuring high pressures in many industrial (e.g., manipulator feedback), automotive (e.g., damping elements, bushings), and underwater (e.g., depth sensors) applications.
- Subjects
PRESSURE sensors; WORK design; MANIPULATORS (Machinery); BUSHINGS; DETECTORS
- Publication
Sensors (14248220), 2022, Vol 22, Issue 14, pN.PAG
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s22145268