Application of Ultrasonic Phased-array Techniques for Inservice Inspection
نویسندگان
چکیده
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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An apparent increase in the detectability of certain flaws results when the ultrasonic inspection beam was oriented off the longitudinal axis of railroad rail. Here, artificial reflectors were used to better define the extent of material "seen" by inspection beams, and determine how surface curvature might affect the inspection. Presumably, such information could be useful for suggesting optimu...
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The use of plastic as a pipe material for the transport of gas and water has increased over the last few years, attributed to the significant advantages of this material such as corrosion resistance, strengthto-weight ratio, lightness, flexibility and cost. Consequently, these pipes have a long predicted service life. One of the pipes’ joining processes is electrofusion welding. As for all kind...
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A new ultrasonic phased array transducer to increase the imaging resolution of the borehole wall is presented for acoustical logging. We fabricate a cylindrical phased array which is made up of 128 piezoelectric elements distributed on the surface of a cylinder uniformly. The working frequency of each element is 0.5MHz. Through the switch array, different combinations of the elements can lead a...
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Phased-array technology is being more and more adopted in the field of ultrasonic non destructive testing because of its enhanced flexibility over conventional monolithic probes. The most common abilities of steering, focusing and electronic scanning have been largely described; they allow faster inspection times or inspection of components with limited accessibility. Although these techniques ...
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ژورنال
عنوان ژورنال: Journal of King Saud University - Engineering Sciences
سال: 1993
ISSN: 1018-3639
DOI: 10.1016/s1018-3639(18)30582-8