TY - CHAP U1 - Konferenzveröffentlichung A1 - Müller, Sonja A1 - Rupitsch, Stefan J. A1 - Mescheder, Ulrich T1 - Experimental characterisation of a piezoelectrically actuated force amplifier using optical and self-sensing methods T2 - ACTUATOR 2022; International Conference and Exhibition on New Actuator Systems and Applications, June 29-30, 2022, Mannheim, Germany N2 - In this work, we characterise a flexural mechanical amplifier, which is used for the realisation of a miniaturised piezoelectric inchworm motor designed for large force (some N) and stroke (tens of mm) operation as it is required e.g., for medical implants. The characterisation is based on high precision optical displacement measurements and a force self-sensing approach. An optically measured displacement of 292 nm in lateral direction and 910 nm in vertical direction of the flexural mechanical amplifier has been obtained, corresponding to a deflection attenuation factor of 3.1. Piezoelectric self-sensing of force was used to determine a force amplification factor of 3.43 from the mechanical oval structure. Y1 - 2022 UR - https://ieeexplore.ieee.org/document/9899222 SN - 978-3-8007-5894-4 SB - 978-3-8007-5894-4 SP - 274 EP - 277 S1 - 4 PB - VDE ER -