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    油井管超聲波自動探傷系統(tǒng)的研制與應(yīng)用

    Development and Application of Automatic OCTG Flaw Ultrasonic Detection System

    • 摘要: 分析了油井管超聲波自動探傷系統(tǒng)的組成結(jié)構(gòu)、檢測原理、實(shí)施方案以及應(yīng)用狀況。該系統(tǒng)采用單元化和模塊化結(jié)構(gòu)設(shè)計,是可任意組合成最少1個、最多N個通道的數(shù)字化多通道超聲波自動探傷系統(tǒng)。配合精心編制的探傷操作程序,可做到對復(fù)雜缺陷回波的準(zhǔn)確評價和嚴(yán)格篩選,有效地避免了系統(tǒng)的誤報警,實(shí)現(xiàn)了缺陷的自動判別、自動報警、自動存儲和缺陷波形動態(tài)回放,提高了超聲波自動探傷檢測的準(zhǔn)確性和可靠性,使誤判率小于2%,漏檢率為0。

       

      Abstract: Analyzed in the essay are the main aspects of the automatic OCTG flaw ultrasonic detection system,covering the equipment configuration,detection principle,implementation plan and application result,etc.This UT system is designed with modular and modulation structures,being a digitized multi-channel system with a flexible channel combination from the minimum 1 to the maximum N.Together with the elaborate operation program,the automatic UT system is capable of providing such advantages as accurate evaluation and strict screening of complex flaw echoes which make any false alarm avoided,automatic discrimination of and alarming for defects,automatic defect information storage and playback of flaw echo waveforms,and higher inspection accuracy and reliability,i.e.,the erroneous evaluation rating:under 2%,and the undetected defect rating:0.

       

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