An ultrasonic array device like the A1040 MIRA is used to non-destructively visualize inside of concrete structures. A data set acquired by so unfocused that an image reconstruction algorithm required transform into understandable image. The total focusing method exploits time-of-flight pulse when While a high frequency barely affects accuracy results, low with long wavelength causes overall sa...

Traditional ultrasonic imaging methods have a low accuracy in the localization of defects austenitic welds because anisotropy and inhomogeneity cause distortion wave propagation paths anisotropic media. The distribution grain orientation influences velocity paths. To overcome this issue, finite element analysis (FEA)-based methodology for is proposed study. method uses database to synthetically...

Ultrasonic cavitation is a phenomenon that occurs when high-frequency sound waves are introduced into liquid medium, causing the formation and collapse of small bubbles within liquid. These generate high-energy shock can change surface nearby materials, leading to various physical chemical effects. In this review, we briefly summarized influence ultrasonic on surficial properties metals some in...

This article describes a bio-inspired method of identify the type of obstacles which could appear e.g. on the MAV’s (Micro Air Vehicles) way. The method is based on measurements made by a low-cost ultrasonic sensor. This kind of sensors are widely used for a distance measurement. The bio-inspired method used by ultrasound sensors uses echo of ultrasound signal to collect the knowledge about the...

Ultrasonic phased array inspection technology is widely used in nondestructive evaluation (NDE) applications and it has been proved to be an effective method for flaw detections in industry. In our study, this nondestructive evaluation method is proposed to detect the corrosion defects on engine cylinders. In order to demonstrate its feasibility, it is necessary to study the characteristics of ...