Nondestructive Material Characterization and Degradation Diagnosis with Digital Ultrasonic Methods

Using the Ultrasonic Nondestructive Methods for Prediction of Mechanical Properties of AISI 4140 Alloy Steel

Achieving the mechanical properties of steels after various manufacturing and heat treatment processes is significant and essential. In production lines, after producing the specific and standard samples, mechanical properties have been measured by destructive processes which cause waste of cost and time. In addition, destructive techniques cannot detect the miniscule changes made in mechanical...

Fetal Diagnosis with Ultrasonic Actocardiogram and GLHW Tissue Characterization

Actocardiogram: Ultrasonic Doppler actocardiogram was simultaneous tracing of FHR and fetal movement signals on the monitoring chart, created in 1984 by Maeda. Fetal behavior was easily studied, false-positive nonreactive FHR and physiological sinusoidal FHR were differentiated, the severity of fetal CNS lesion and common fetal disorders were determined, short and long-term outcomes were diagno...

Computer Modeling and Simulation of Ultrasonic System for Material Characterization

In this paper the system for simulation, measurement and processing in graphical user interface implementation is presented. The received signal from the simulation is compared to that of an actual measurement in the time domain. The comparison of simulated, experimental data clearly shows that acoustic wave propagation can be modeled. The feasibility has been demonstrated in an ultrasound tran...

Ultrasonic nondestructive inspection of solid objects

Ultrasonic testing (UT) has been used for nondestructive evaluation (NDE) of materials for more than half a century. A number of NDE techniques have been developed and specifi standards have been created for the UT applications in different areas of engineering. UT has two main goals related to inspection of solid objects, firstl , detection and characterization of material discontinuities (fl ...

Ultrasonic Signal Processing Platform for Nondestructive Evaluation