Single-Input and Multiple-Output Surface Acoustic Wave Sensing for Damage Quantification in Piezoelectric Sensors
| Autor: | Anowarul Habib, Frank Melandsø, Lavish Pamwani, Amit Shelke, Balpreet Singh Ahluwalia |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Piezoelectric sensor Interdigital transducer principal component analysis Acoustics interdigital transducer 02 engineering and technology VDP::Technology: 500::Electrotechnical disciplines: 540::Other electrotechnical disciplines: 549 lcsh:Chemical technology 01 natural sciences Biochemistry Article surface acoustic wave Analytical Chemistry symbols.namesake 0103 physical sciences Perpendicular lcsh:TP1-1185 Electrical and Electronic Engineering Rayleigh wave empirical mode decomposition 010301 acoustics Instrumentation Microscale chemistry condition indicator Surface acoustic wave VDP::Teknologi: 500::Elektrotekniske fag: 540::Andre elektrotekniske fag: 549 Acoustic wave 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Computer Science::Other Euclidean distance VDP::Mathematics and natural science: 400::Physics: 430::Electromagnetism acoustics optics: 434 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Elektromagnetisme akustikk optikk: 434 symbols 0210 nano-technology |
| Zdroj: | Sensors (Basel, Switzerland) Sensors, Vol 18, Iss 7, p 2017 (2018) Sensors Volume 18 Issue 7 |
| ISSN: | 1424-8220 |
| Popis: | The main aim of the paper is damage detection at the microscale in the anisotropic piezoelectric sensors using surface acoustic waves (SAWs). A novel technique based on the single input and multiple output of Rayleigh waves is proposed to detect the microscale cracks/flaws in the sensor. A convex-shaped interdigital transducer is fabricated for excitation of divergent SAWs in the sensor. An angularly shaped interdigital transducer (IDT) is fabricated at 0 degrees and ± 20 degrees for sensing the convex shape evolution of SAWs. A precalibrated damage was introduced in the piezoelectric sensor material using a micro-indenter in the direction perpendicular to the pointing direction of the SAW. Damage detection algorithms based on empirical mode decomposition (EMD) and principal component analysis (PCA) are implemented to quantify the evolution of damage in piezoelectric sensor material. The evolution of the damage was quantified using a proposed condition indicator (CI) based on normalized Euclidean norm of the change in principal angles, corresponding to pristine and damaged states. The CI indicator provides a robust and accurate metric for detection and quantification of damage. |
| Databáze: | OpenAIRE |
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