Automated extraction of local defect resonance using the principal component analysis in lock-in ultrasonic vibrothermography
Seyed Ali Ghorashi, Farhang Honarvar, Morteza Tabatabaeipour
Topics & Concepts
Materials scienceUltrasonic sensorFinite element methodPrincipal component analysisResonance (particle physics)ViscoelasticityFrequency modulationPenetration depthAmplitudeOpticsSine waveNondestructive testingAcousticsLow frequencyPhysicsComposite materialBandwidth (computing)Computer scienceTelecommunicationsVoltageArtificial intelligenceParticle physicsQuantum mechanicsThermodynamicsUltrasonics and Acoustic Wave PropagationThermography and Photoacoustic TechniquesStructural Health Monitoring Techniques