A bimorph based dilatometer for field induced strain measurement in soft and thin free standing polymer films
- 1 June 1998
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 69 (6), 2480-2483
- https://doi.org/10.1063/1.1148947
Abstract
A bimorph based dilatometer has been developed which enables one to characterize the electric field induced strain response in the out-of-plane direction in thin and soft free standing polymer film samples conveniently over a relatively wide frequency range (1 Hz to 1 kHz). The test results demonstrate that the newly developed dilatometer is capable of detecting displacement down to sub-angstrom range. The agreement between the test results from the bimorph dilatometer, the results from a laser dilatometer, and the model analysis indicates that the device can indeed be used reliably for these measurement with high sensitivity.Keywords
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