Forestry Science and Technology · 2002 · 10 citations · 0 references
Natural SciencesMaterials EngineeringMaterials ScienceAcousticsUltrasonographyUltrasoundAcoustic MeasurementDefect CharacterizationMaterial TestingNon-destructive EvaluationWood DeteriorationAcoustic EmissionAcoustic Emission MeasurementAcoustic Emission TestingNon-destructive TestingNon-destructive Testing Of TimberNuclear Magnetic Resonance StudiesPortable Analytical InstrumentsWood Defects
The research situation of several non -destructive testing methods for wood de-fects, such as microwave, ultrasonic, x-ray,nuclear magnetic resonance (NMR)and acoustic emission are introduced in this paper. Different testing methods have advantages and disad-vantages respectively. After this, the authors introduce several portable instruments to test wood defects.