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Updated: Feb 27, 2026

Investigating the Potential of Singly Curved Thin Piezoelectric Transducers for Energy Harvesting and Structural Health Monitoring
Published on: November 14, 2025
Note: A novel cantilever beam for low-frequency high performance piezoelectric geophone
Yi Xin1, Hongshuai Sun1, Chao Guo1
1College of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, China.
Abstract:
A multilayer spiral-corrugated cantilever beam was developed as an improvement for a conventional single-layer flat cantilever beam to improve the performance of a piezoelectric geophone adopting polyvinylidene fluoride film for low frequency seismic vibration measurement. The proposed structure is longer and has less stiffness compared with the conventional beam, so the piezoelectric geophone adopting the developed cantilever beam has a lower natural frequency. To confirm the validity of the design, the finite element analysis was conducted and the results showed that the natural frequency of the geophone with the multilayer spiral-corrugated cantilever beam is much lower and the corrugated structure can improve the sensitivity of the geophone.
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