Design and Implementation of an Electromagnetic-Capacitive Coupling Mechanism-Based Material Young's Modulus Measurement System.

Zhuo Liu, Xuemei Lu, Heng Li, Baoqing Nie

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Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 authors.

Zhuo LiuJiangsu Key Laboratory of Biophotonics, Suzhou City University, Suzhou 215104, China.

Xuemei LuJiangsu Key Laboratory of Biophotonics, Suzhou City University, Suzhou 215104, China.ORCID 0009-0005-7590-9475

Heng LiSchool of Electronic and Information Engineering, Soochow University, Suzhou 215006, China.

Baoqing NieSchool of Electronic and Information Engineering, Soochow University, Suzhou 215006, China.ORCID 0000-0003-4631-0728

Funding

National Natural Science Foundation of China 22203059, 62471326Open Research Fund of Jiangsu Key Laboratory of Biophotonics 2025BPT003Program of Jiangsu Provincial Key Lab of Thin Films KJS2131Qing Lan Project Qing Lan Project

6 · The paper itself

Abstract

In mechanical material evaluation and biomechanical studies, Young's modulus is commonly used to describe the elastic response of materials. Existing measurement approaches are mainly based on contact loading or large-scale experimental instruments, which may limit excitation controllability and system integration in practical applications. In this work, a Young's modulus measurement system based on electromagnetic excitation and capacitive sensing is designed and experimentally implemented. The system is composed of an electromagnetic driving unit and a capacitive sensing unit. In the driving unit, a coaxial copper wire coil is arranged with a ring-shaped neodymium-iron-boron permanent magnet assembly. When a square-wave electrical signal is applied, the coil generates a Lorentz force, which produces transient mechanical excitation on the tested sample. The resulting micro-scale deformation of the material surface is monitored using a coaxial passive capacitive sensor. The sensor records the relative capacitance variation (ΔC/C

Indexed as

capacitance detectionelectrodynamic drivematerial mechanical characterizationmeasurement systemtransient excitationyoung’s modulus

Identifiers

PMID42124139

DOI10.3390/ma19091731

PMCPMC13164659

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