Piezoelectric excitation and acoustic detection of thin film polymer membrane vibrations

Roberts, Nathaniel M.; Sharp, James S.

Abstract

A simple method of measuring the vibrational response of a thin film membrane was developed. Piezoelectric excitation and acoustic detection (using a microphone) allowed the vibrational spectra of thin membranes to be measured in the kHz range. Vibrational frequencies were used to determine Young's modulus in thin (µm) solvent tensioned films of polydimethylsiloxane and to measure tension in ultrathin polystyrene films. Simulations of membrane motion generated vibrational spectra that agreed with the results of experiments for different membrane shapes.

Citation

Roberts, N. M., & Sharp, J. S. (2024). Piezoelectric excitation and acoustic detection of thin film polymer membrane vibrations. Physical Review E, 109(1), Article 014802. https://doi.org/10.1103/physreve.109.014802

• Journal Article Type: Article
• Acceptance Date: Jan 8, 2024
• Online Publication Date: Jan 24, 2024
• Publication Date: 2024-01
• Deposit Date: Jan 24, 2024
• Publicly Available Date: Jan 25, 2024
• Journal: Physical Review E
• Print ISSN: 1539-3755
• Electronic ISSN: 2470-0053
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 109
• Issue: 1
• Article Number: 014802
• DOI: https://doi.org/10.1103/physreve.109.014802
• Keywords: Acoustic measurements; Mechanical & acoustical properties; Mechanical properties of membranes; Polymer thin films; Ultrathin films
• Public URL: https://nottingham-repository.worktribe.com/output/30145305
• Publisher URL: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.109.014802