Abstract
In this paper, identification of dynamic sensing characteristics of MFC(macro fiber composite) and PVDF(polyvinylidene fluoride) are carried out via experimental investigation. A clamped aluminum beam structure is prepared and experimental setup for beam vibration test is established with shaker system. MFC and PVDF are attached on the top and bottom surface of the beam structure, respectively and connected to data acquisition system. In order to verify the operating bandwidth, frequency responses of the smart beam structure are obtained from 0Hz to 5kHz under sine sweep excitation. For the identification of dynamic sensing characteristics, experiments for linearity and durability are conducted. It is observed that both MFC and PVDF have excellent sensing performance in measuring dynamic response and monitoring structural vibration.
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