- Title
- Characterization of active microcantilevers using laser doppler vibrometry
- Creator
- Ruppert, Michael G.; Franco Soares De Bem, Natã; Fleming, Andrew J.; Yong, Yuen K.
- Relation
- Vibration Engineering for a Sustainable Future: Experiments, Materials and Signal Processing, Vol. 2 p. 355-361
- Publisher Link
- http://dx.doi.org/10.1007/978-3-030-48153-7_45
- Publisher
- Springer Nature Switzerland
- Resource Type
- book chapter
- Date
- 2021
- Description
- Active atomic force microscope cantilevers with on-chip actuation and sensing provide several advantages over passive cantilevers which rely on piezoacoustic base-excitation and the optical beam deflection measurement. Most importantly, these cantilevers provide clean frequency responses, the possibility of down-scaling and parallelization to cantilever arrays as well as the absence of optical interferences. In this paper, we demonstrate the analysis and calibration steps for three active cantilever geometries with integrated piezoelectric actuation. For this purpose, laser Doppler vibrometry (LDV) is used to experimentally obtain the deflection mode shapes of the first three eigenmodes, calibrate actuation gains, and to determine the dynamic modal stiffnesses using the Brownian spectrum of the cantilever. The experimental values are compared with finite element simulations.
- Subject
- atomic force microscopy; piezoelectric actuation; thermal noise calibation; finite element analysis
- Identifier
- http://hdl.handle.net/1959.13/1446412
- Identifier
- uon:42863
- Identifier
- ISBN:9783030481520
- Language
- eng
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