Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29856
Title: Study of 1-3 PZT fibre/epoxy composite force sensor
Authors: Choy, SH
Chan, HLW 
Ng, MW
Liu, PCK
Issue Date: 2005
Publisher: Springer
Source: Applied physics. A, Materials science & processing, 2005, v. 81, no. 4, p. 817-821 How to cite?
Journal: Applied physics. A, Materials science & processing 
Abstract: Lead zirconate titanate (PZT) fibres were prepared by a powder-based extrusion method. Pre-sintered PZT powder mixed with poly(acrylic acid) was spun in a spinnerette to produce fibres. The fibre of ∼ 400 μm diameter was used to fabricate 1-3 PZT fibre/epoxy composite discs with different volume fractions (ψ) of PZT. Since the ceramic fibres are rather brittle, their elastic properties cannot be measured directly. In order to determine the properties of the ceramic fibres, effective properties of the fibres/epoxy 1-3 composite were measured. By using a modified series and parallel model, the properties of 1-3 composites can be calculated. Then, the elastic coefficient s33,fibre E, relative permittivity ε 33,fibre T and piezoelectric strain coefficient d 33,fibre of the ceramic fibre could be found. Ring-shaped PZT fibre/epoxy materials composites with different ψ were fabricated to be used as the sensing material in force sensor applications. The ring-shape composite with ψ=0.5 was installed into a housing and the sensor was calibrated by different methods and its sensitivity was found to be 144 pC/N within the frequency range of 0.5-6.4 kHz which is much higher than that of a quartz force sensor with a similar structure.
URI: http://hdl.handle.net/10397/29856
ISSN: 0947-8396
EISSN: 1432-0630
DOI: 10.1007/s00339-004-2874-9
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