Author(s)

Liu Pengcheng ¹, Cheng Yunping ¹, Yan Kaiqiang ¹, Wang Zhi ¹, Wang Yuze ¹, Ma Lele ¹

Affiliation(s)

¹ School of Mechanical Engineering, North University of China, Taiyuan, Shanxi Province, 030051, China

Corresponding Author

Cheng Yunping

ABSTRACT

PVDF piezoelectric film accelerometers can detect vibration signals due to their sensitive piezoelectric material components. Addressing the issues of low sensitivity and narrow frequency range in existing vibration monitoring sensors for turning processes, this paper proposes a PVDF piezoelectric film accelerometer based on a vertical compression structure. First, the mechanical model of the sensor under working conditions is established, analyzing the structural and material performance parameters related to its natural frequency and sensitivity. An ANSYS finite element model is built, and modal and harmonic response analyses of the model are performed. Simulation results show that the designed sensor's operating frequency and sensitivity can meet the requirements for vibration testing in turning. Calibration experiments on the sensor demonstrate that its natural frequency is 8900 Hz, its operating frequency range is 0.5-2900 Hz, and its charge sensitivity is 25.284 pC/(m·s⁻²). The sensor features a wide frequency range and high sensitivity, enabling its use for detecting vibration signals in turning experiments.

KEYWORDS

PVDF Piezoelectric Film; Accelerometer; Vertical Compression Type; Calibration; Vibration Testing

CITE THIS PAPER

Liu Pengcheng, Cheng Yunping, Yan Kaiqiang, Wang Zhi, Wang Yuze, Ma Lele, Research and Application of PVDF Piezoelectric Film Accelerometer. Journal of Engineering Mechanics and Machinery (2025) Vol. 10: 190-201. DOI: http://dx.doi.org/10.23977/jemm.2025.100120.

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