Print Email Facebook Twitter Development of temperature stable charge based piezoelectric composite quasi-static pressure sensors Title Development of temperature stable charge based piezoelectric composite quasi-static pressure sensors Author van den Ende, D.A. Groen, W.A. van der Zwaag, S. TNO Industrie en Techniek Publication year 2010 Abstract In this work piezoelectric composite charge based sensors are developed, aimed at quasi-static pressure sensor or switch type applications. The use of piezoelectric composite materials allows for manufacturing robust devices which can easily be integrated with conventional polymer processing. Piezoelectric composites of lead zirconate titanate (PZT) and two types of polymers, polyamide-6 (PA6) and a liquid crystalline thermosetting polymer (LCT) were used to manufacture sensor devices. The behavior of the output signal of different types of sensors was studied with focus on both temperature dependence of the output signal and the drift of the signal with time. The properties of the PA6 based composites and devices are highly temperature dependent while the output signal of LCT based composites and devices has a very low temperature dependence and drift, even outperforming the PZT reference device. The temperature dependence of the output signal of the composite devices is dependent on the device configuration as well as the material properties, such as polymer permittivity. The drift of the signal is strongly dependent on the resistivity of the PZT-polymer composite material used in the sensor. © 2010 Elsevier B.V. All rights reserved. Subject Fluid Mechanics Chemistry & EnergeticsRMC - Responsive Materials & CoatingTS - Technical SciencesHigh Tech Systems & MaterialsElectronicsIndustrial InnovationCharge outputPiezoelectric compositesPressure sensorSwitchTemperature dependence To reference this document use: http://resolver.tudelft.nl/uuid:d3e5893b-753d-476d-b7a0-7bc9a6ae22a7 TNO identifier 409823 ISSN 0924-4247 Source Sensors and Actuators, A: Physical, 163 (1), 25-31 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.