Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/616
Title: Factors affecting the performance of the bimorph-based dilatometer for field induced strain measurement of polymer films
Authors: Guo, S
Chan, HLW 
Zhao, X
Choy, CL
Keywords: Polymer films
Strain sensors
Extensometers
Piezoelectric transducers
Issue Date: Mar-2003
Publisher: American Institute of Physics
Source: Review of scientific instruments, Mar. 2003, v. 74, no. 3, p. 1285-1291 How to cite?
Journal: Review of scientific instruments 
Abstract: This article gives a detailed discussion about the design and performance of a bimorph-based dilatometer using different sensor heads and platforms both experimentally and theoretically. A current preamplifier in high-pass filter mode was used to optimize the signal and a protective circuit was introduced. The test results demonstrated that the best signal occurred when the lengths of stainless steel pin and bimorph were both 10.0 mm and that the resonant frequency was inversely proportional to the square of the sensor length. Some suggestions for reducing the noise and improving the sensitivity were also provided.
URI: http://hdl.handle.net/10397/616
ISSN: 0034-6748
Rights: © 2003 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in S. Guo et al., Rev. Sci. Instrum. 74, 1285 (2003) and may be found at http://link.aip.org/link/?rsi/74/1285.
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