We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Design and Experimental Evaluation of a Dual-Cantilever Piezoelectric Film Sensor with a Broadband Response and High Sensitivity.
- Authors
Xin, Wei; He, Zhaoyang; Zhao, Chaocheng
- Abstract
Cantilever-beam-type PVDF (Polyvinylidene Fluoride) piezoelectric film sensors are commonly utilized for vibration signal detection due to their simple structures and ease of processing. Traditional cantilevered PVDF piezoelectric film sensors are susceptible to the influence of the second-order vibration mode and have a low lateral stress distribution at the free end, which limit their measurement bandwidth and sensitivity. This study is on the design of a dual-cantilever PVDF piezoelectric film sensor based on the principle of cantilevered piezoelectric film sensors. The results of the experiments indicate that, compared to a typical single-arm piezoelectric cantilever beam vibration sensor, the developed sensor has a longer second-order natural frequency that ranges from 112 Hz to 453 Hz, while the first-order natural frequency is maintained at around 12 Hz. This leads to a better ratio of the second-order natural frequency to the first-order natural frequency and a wider frequency response range. At the same time, the sensitivity is increased by a factor of 3.48.
- Subjects
POLYVINYLIDENE fluoride; EXPERIMENTAL design; STRESS concentration; SIGNAL detection; PIEZOELECTRIC detectors; CANTILEVERS
- Publication
Micromachines, 2023, Vol 14, Issue 11, p2108
- ISSN
2072-666X
- Publication type
Article
- DOI
10.3390/mi14112108