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Piezoelectric actuators characterization for simultaneous force and displacement self-sensing by detecting impedance

Abstract : This paper introduces a new Self-Sensing Actuation approach for simultaneous estimation of external loads and Piezoelectric Actuator (PEA) displacement at a frequency here the PEA's impedance change presents good sensitivity to both electrical and mechanical excitations. Experiments are conducted for static operations to support these claims and to help demonstrate the dependence of the PEA's mechanical and electrical properties on external excitations: mechanical stresses with a low preload (less than the recommended 15 MPa for dynamic operations) and electric fields.
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https://hal.archives-ouvertes.fr/hal-03120194
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Monday, January 25, 2021 - 1:11:58 PM
Last modification on : Tuesday, January 26, 2021 - 3:19:50 AM
Long-term archiving on: : Monday, April 26, 2021 - 6:58:38 PM

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Joël Bafumba Liseli, Sepehr Zarif Mansour, Rudolf Seethaler, Joël Agnus, Philippe Lutz, et al.. Piezoelectric actuators characterization for simultaneous force and displacement self-sensing by detecting impedance. IFAC Mechatronics / NOLCOS, (Joint Symposium on Mechatronic Systems and IFAC Symposium on Nonlinear Control Systems), Sep 2019, Vienna, Austria. pp.501-506, ⟨10.1016/j.ifacol.2019.11.725⟩. ⟨hal-03120194⟩

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