基于相控延时原理的综放设备超声无损检测技术  

Ultrasonic Nondestructive Testing Technology of Mechanized Caving Equipments Based on Phased Delay Principle

作　　者：殷帅峰[1] 何富连[1,2] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《煤矿安全》2013年第7期91-94,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51234005);国家重点基础研究发展计划资助项目(2010CB226802);煤炭资源与安全开采国家重点实验室自主研究课题资助项目(SKLCRSM 10B08);中央高校基本科研业务费专项资金资助项目(2010YZ02)

摘　　要：详细阐述了相控聚焦和相控偏转的基本原理,分析了相控延时超声无损检测的优越性,给出了马营煤矿9102综放面顶梁探伤三维输出图像。研究及应用结果表明:相控聚焦和相控延时或者二者的排列组合可对综放面几何形状相对复杂的设备进行精确可靠探伤,三维输出图像可有效判别缺陷发展趋势和设备后期破坏形式,有利于提高综放设备寿命和保证综放面经济高效开采。The advantages of phased delay ultrasonic nondestructive testing technology were analyzed by elaborating the principle of phased focus and phased deflection.The three-dimensional output image of top beam detection was given at 9102 full-mechanized caving face in Maying Coal Mine.The research and application results indicated that phased focus and phased deflection,or their permutation could complete the accurate and reliable detection for mechanized caving equipments with relatively complex geometric figures,and the three-dimensional output image could effectively judge the defect development tendency and device late failure form,which could raise the mechanized caving equipment life and ensured economic and efficient mining.

关 键 词：相控延时 相控阵 综放设备 相控聚焦 相控偏转 

分 类 号：TD679[矿业工程—矿山机电]