منابع مشابه
Application of Phased Array Ultrasonic Testing Technology on Inservice Wheel
In this paper, an Ultrasonic testing method for inservice wheel by use of phased array technology is introduced. To meet the ultrasonic test criterion of inservice CRH wheel, groups of phased array probes and conventional probes are combined used. By study echo wave in wheel rim and wheel disk form different probes, defect analyzing methods in wheel rim and wheel disk are studied. Tests on CRH ...
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A series of experiments has been conducted in the NASA HYPULSE Expansion Tube, in both CO2 and air test gases, in order to obtain data for comparison with computational results and to assess the capability for performing hypervelocity heat-transfer studies in this facility. Heat-transfer measurements were made in both test gases on 70 deg sphere-cone models and on hemisphere models of various r...
متن کاملUltrasonic Testing of Steel Castings
Calibration and Reference Blocks ................................................................. 7 Longitudinal Wave Probes ............................................................................. 7 Transverse Wave Probes ............................................................................. 10 Measurement of Steel Thickness ...........................................................
متن کاملAUTOMATION of ULTRASONIC TESTING PROCEDURES
INTRODUCTION Automation of ultrasonic testing procedures is a kind of non-destructive testing procedures, which is involves the use of both longitudinal and transverse high-frequency sound waves for the exploration and/or mapping of both surface and sub-surface defect or irregularities. Of course the material thickness or the material loss (corrosions/ erosions) can also be observed by the conc...
متن کاملReal Implementation of Ultrasonic Phased Array Technology Using Advanced Signal Processing Algorithms
Over the past few years, the improvement in the field of ultrasonic non-destructive testing has led to significant advances in ultrasonic signal processing and image construction techniques. Many techniques have been proposed to improve the flaw and crack detection processes. In general, these techniques can be divided into two main parts. As first, many proposals have been focused on construct...
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ژورنال
عنوان ژورنال: Journal of the Japan Welding Society
سال: 2001
ISSN: 0021-4787,1883-7204
DOI: 10.2207/qjjws1943.70.4_405