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Characterization of piezoelectric materials, sensors and actuators This lab is dedicated to the characterization of both functional materials and devices. It is outfileld with a optical stereo microscope equipped with a HD camera. The Piezo Evaluation System (aixACCT Systems GmbH) is the outstanding facility of this lab. It is used for comprehensive electrical and electro-mechanical characterization of piezoelectric bulk and thin film piezoelectrical samples. Large and small signal material characteristics can be evaluated over a wide range of temperatures and compressive stress. The samples displacement is simultaneously measured with an laser vibrometer system (Polytec GmbH). The lab is completed by a precision impedance analyzer that significantly reduces the time and effort for analyzing dielectric and piezoelectric materials. The analysis of specific resonances in the impedance spectrum and data providing at this resonance quality greatly improve materials and devices quality control. |
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