电磁导波与脉冲涡流检测仪
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摘要
针对导波检测管道存在盲区的问题,利用电磁导波和脉冲涡流的复合方法检测管道。根据电磁导波和脉冲涡流检测原理确定检测方案,设计发射系统的信号发生器和功率放大电路,开发接收系统的信号放大电路和软件分析程序,利用管道中不同距离的故障实验分析系统性能。实验结果表明检测仪可以检测出5、100、200 m的管道故障,且特征信号幅值最小为0. 5 V。说明该检测仪有效检测距离可以达到200 m,可以有效检测金属管道的损伤。
In view of the problem of blind area in guided wave detection pipeline,a combination method of electromagnetic guided wave and pulsed eddy current was used to detect the pipeline. The detection scheme was determined according to the principle of electromagnetic guided wave and pulse eddy current detection,the signal generator and power amplifier circuit were designed,the signal amplifying circuit and software analysis program of the receiving system were developed,and the performance of the system was analyzed by the fault experiment of different distance in the pipeline. Experiments show that the detector can produce pipeline faults of 5 m,100 m and 200 m,and the minimum amplitude of the characteristic signal is 0. 5 V. This shows that the effective detection distance of the tester can reach 200 m,which can effectively detect the damage of metal pipelines.
In view of the problem of blind area in guided wave detection pipeline,a combination method of electromagnetic guided wave and pulsed eddy current was used to detect the pipeline. The detection scheme was determined according to the principle of electromagnetic guided wave and pulse eddy current detection,the signal generator and power amplifier circuit were designed,the signal amplifying circuit and software analysis program of the receiving system were developed,and the performance of the system was analyzed by the fault experiment of different distance in the pipeline. Experiments show that the detector can produce pipeline faults of 5 m,100 m and 200 m,and the minimum amplitude of the characteristic signal is 0. 5 V. This shows that the effective detection distance of the tester can reach 200 m,which can effectively detect the damage of metal pipelines.
引文
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[2]黄松岭,王哲,王珅,等.管道电磁超声导波技术及其应用研究进展[J].仪器仪表学报,2018,39(3):1-12.
[3]唐波,方旭,侯德鑫,等.面向脉冲涡流热成像的激励电源特性研究[J].仪器仪表学报,2018,39(1):208-215.
[4]袁红梅.基于脉冲涡流的薄壁铝型材通孔在线检测系统设计[J].机床与液压,2017,45(20):157-160.
[5]盛卫锋,杜阳,周德强,等.基于脉冲涡流热成像的下表面缺陷评估[J].激光与红外,2017,47(8):968-974.
[6]周进节,郑阳,张宗健,等.电磁超声导波大功率激励信号的线性放大方法[J].机械工程学报,2017,53(18):26-34.
[7]侯立功,吴伟,肖颖.基于ARM的包装袋成型机嵌入式控制系统设计[J].包装工程,2018,39(1):121-125.
[8]纪健,李玉星,纪杰,等.声波传感技术在多相流管道泄漏检测中的应用[J].油气储运,2018,37(5):493-500.
[9]陈健飞,王孟,江文军,等.基于灰色关联度的埋地管道检测数据分析[J].表面技术,2017,46(4):264-269.
[10]王悦民,耿海泉,陈乐,等.超声导波管道检测中伪缺陷信号识别及消除方法[J].中国科学:技术科学,2017,47(2):137-148.
[11]王孟,李自力,杨超,等.埋地集输管道检测数据分析[J].表面技术,2016,45(8):132-137.
[12]林蔚,褚胜楠.多传感器输油管道检测数据融合技术[J].黑龙江大学自然科学学报,2015,32(3):397-403.