Investigation of the Transient Behavior of a Cantilever Beam Using PVDF Sensors

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ID: 112309
2012
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Abstract
In this paper, a PVDF film sensor was used to measure the transient responses of a cantilever beam subjected to an impact loading. The measurement capability of a PVDF sensor is affected by the area of the PVDF film sensor and the signal conditioner (charge amplifier). The influences of these effects on the experimental measurements were investigated. The transient responses for the dynamic strain of the beam were measured simultaneously by the PVDF sensor and a conventional strain gauge. The resonant frequencies of the beam were determined by applying the Fast Fourier Transform on transient results in the time domain of the PVDF sensor and the strain gauge. The experimentally measured resonant frequencies from the PVDF sensor and the strain gauge were compared with those predicted from theoretical and FEM numerical calculations. Based on the comparison of the results measured for these two sensors, the PVDF film sensor proved capable of measuring transient responses for dynamic strain, and its sensitivity is better than that of the strain gauge. Furthermore, almost all the resonant frequencies can be obtained from the results of transient responses for PVDF film.
Reference Key
ma2012sensorsinvestigation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Chien-Ching Ma;Yu-Hsi Huang;Shan-Ying Pan;Ma, Chien-Ching;Huang, Yu-Hsi;Pan, Shan-Ying;
Journal sensors
Year 2012
DOI
10.3390/s120202088
URL
https://doi.org/10.3390/s120202088
Keywords
resonant frequency cantilever beam pvdf film sensor strain gage transient response

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