Absolute Measurement and Relative Measurement of Ultrasonic Nonlinear Parameter
http://www.tandfonline.com/doi/pdf/10.1080/09349847.2016.1174322
Absolute Measurement and Relative Measurement of Ultrasonic Nonlinear Parameters Jongbeom Kim a , Dong-Gi Song a , and Kyung-Young Jhang b a
Department of Mechanical Convergence Engineering, Hanyang University, Seoul, South Korea; b School of Mechanical Engineering, Hanyang University, Seoul, South Korea
ABSTRACT The ultrasonic nonlinear parameter is measured from the amplitudes of the harmonic frequency components generated during the propagation of ultrasonic waves in a material. There are two definitions for this parameter: absolute and relative. The absolute parameter is defined by the displacement amplitude; however, it is difficult to measure because of the very small displacement amplitude of the harmonic components. Conversely, the relative parameter is defined by the amplitude of the detected signal, regardless of displacement. Many researchers use the relative parameter because it is easier to measure, although it is only available for a relative comparison of different materials. However, it has not yet been verified that the ratio of the relative parameters between two materials is identical to that of the absolute parameters. In this study, we make it clear that the ratio of the relative parameters is inherently not identical to that of the absolute parameters, but that they can be identical to each other by compensating for material-dependent differences, such as detection-sensitivity and wavenumber. For verification, the absolute and relative parameters were measured for two different materials. The results showed that the ratios of absolute and relative parameters were in good agreement after compensation. KEYWORDS Al6061-T6; absolute parameter; fused silica; relative parameter; ultrasonic nonlinear p
-
Full-range stress–strain curve estimation of aluminum alloys using machine learning-aided ultrasound
Date2024.03.19 CategoryInternational Views24 -
Nondestructive Inspection of Directed Energy Deposited Components Using Scanning Acoustic Microscopy with Metalworking Fluids
Date2024.03.19 CategoryInternational Views19 -
Nondestructive Inspection of Cylindrical Components Repaired Via Directed Energy Deposition Using Scanning Acoustic Microscopy with Metal Lubricants
Date2024.03.19 CategoryInternational Views148 -
Plastic properties estimation of aluminum alloys using machine learning of ultrasonic and eddy current data
Date2024.03.19 CategoryInternational Views45 -
Calibration method using a narrowband signal for measurement of the acoustic nonlinearity parameter
Date2024.03.19 CategoryInternational Views23 -
Comparisons of second- and third-order ultrasonic nonlinearity parameters measured using through-transmission and pulse-echo methods
Date2022.11.15 CategoryInternational Views2463 -
In-situ and Layer-by-layer Grain Size Estimation of Additively Manufactured Metal Components using Femtosecond Laser Ultrasonic Technique (Submitted)
Date2022.02.21 CategoryInternational Views951 -
Microstructural Characterization of Additively Manufactured Metal Components Using Linear and Nonlinear Ultrasonic Techniques
Date2022.02.21 CategoryInternational Views1270 -
Tensile properties evaluation of additively manufactured Ti-6Al-4V/yttria-stabilized zirconia composite using absolute nonlinear-ultrasonic technique (Submitted)
Date2022.02.21 CategoryInternational Views12456 -
Generation and Measurement of Gigahertz Ultrasonic Waves in Additively Manufactured Thin Metal Components using Femtosecond Laser and Application to In-situ Grain size Monitoring (Submitted)
Date2022.02.21 CategoryInternational Views26189 -
Porosity evaluation of additive manufactured parts: ultrasonic testing and eddy current testing
Date2021.08.25 CategoryDomestic Views124098 -
Nondestructive evaluation of micro-oxide inclusions in additively manufactured metal parts using nonlinear ultrasonic technique
Date2021.08.25 CategoryInternational Views20069 -
Mechanical properties estimation of additively manufactured metal components using femtosecond laser ultrasonics and laser polishing
Date2021.08.25 CategoryInternational Views28912 -
Experimental Verification of Contact Acoustic Nonlinearity at Rough Contact Interfaces
Date2021.08.25 CategoryInternational Views49902 -
Compensation of a Second Harmonic Wave Included in an Incident Ultrasonic Wave for the Precise Measurement of the Acoustic Nonlinearity Parameter
Date2021.08.25 CategoryInternational Views45529 -
Measurement of Absolute Acoustic Nonlinearity Parameter Using Laser-Ultrasonic Detection
Date2021.08.25 CategoryInternational Views43110 -
Rapid Molecular Diagnostic Sensor Based on Ball-Lensed Optical Fibers
Date2021.08.25 CategoryInternational Views36362 -
Porosity Evaluation of Additively Manufactured Components Using Deep Learning‑based Ultrasonic Nondestructive Testing (Editor's pick)
Date2021.08.25 CategoryInternational Views12107 -
Deep Learning-Based Ultrasonic Testing to Evaluate the Porosity of Additively Manufactured Parts with Rough Surfaces
Date2021.08.25 CategoryInternational Views21430 -
Analysis of the influence of surface roughness on measurement of ultrasonic nonlinearity parameter using contact-type transducer
Date2021.08.25 CategoryInternational Views504771