The four-dimensional (realtime three-dimensional) phased array ultrasonic testing system has been developed. The system enables realtime ultrasonic inspections using three-dimensional (3D) images as opposed to two-dimensional images obtained by the conventional phased array methods. In the system, objects are scanned volumetrica lly with focused beams generated by a matrix array probe and the results are displayed as 3D images in realtime through the conversion from measured data into voxel data using par...
英字タイトル:
Four-Dimensional (Realtime Three-Dimensional) Phased Array Ultrasonic Testing

The three-dimensional phased-array (3D-PA) ultrasonic technique has been applied to a stress corrosion cracking (SCC) in base metal, and its results for sizing have been quantitatively evaluated. The 3D-PA allows operators to scan objects volumetrically and to display results as 3D images facilitating evaluation processes considerably. The scanning pattern used is called the moving rotational sectorial-scan (MRS-scan) and it is composed of many sectors of different azimuth angles as moving the probe li...
英字タイトル:
Visualization and Quantitative Research of Stress Corrosion Cracking Using the Three-Dimensional Phased Array Ultrasonic Technique

Ultrasonic testing techniques by using the three-dimensional (3D) phased array was investigated. The 3D phased array allows a target region to be scanned volumetrically with focused beams transmitted from a matrix array probe. This leads to an increase in inspection speed and easy-to-u nderstand inspection results displayed as 3D rendered images. This paper focuses mainly on synthesizing techniques of 3D scanned data obtained a t multiple positions when moving the probe. The technique is effective to figu...
英字タイトル:
Three-Dimensional Phased Array Ultrasonic Testing

This study presents innovative 2D phased array inspection system “HITCHI 3D Focus-UT” for 3D volume inspection. This system employees (1) 3D ray-trace simulator to set-up the delay time for array elements and delay pattern for 3D volume scanning, (2) high sensitivity 256CH phased array equipment to drive a 2D matrix ar ray simultaneously and to obtain 3D volumetric data, and (3) high-speed 3D data processing software to convert 3D volumetric inspection data into 3D voxel data and display 3D inspection ima...
英字タイトル:
Development of 3-Dimensional Ultrasonic Testing System “3D Focus-UT”