Amalog-sonoscopeⅡ漏磁探伤设备“双闸门”捕色软件的开发

Development of Double-gate Color-catching Software for Amalog-sonoscope Ⅱ Flux Leakage Inspection System

Amalog-sonoscope Ⅱ漏磁探伤设备在检测过程中,因部分管坯存在一定深度的埋藏缺欠,检测波形未能达到50%的报警闸门,存在缺陷管漏检的质量风险。简述漏磁检测原理及其检测的局限性,提岀减少钢管近表面埋藏缺陷漏检的解决方法,并基于Visual Basic程序设计语言开发出“双闸门”捕色软件。该“双闸门”捕色软件设置有25%或30%高度的预警闸门,漏磁检测时预警闸门与原报警闸门实现双闸门。该软件开发成本低,代码量小,响应速度快,可有效发现钢管内部一定深度的埋藏缺陷,应用效果良好。

During the operation of the Amalog-sonoscope U flux leakage inspection system, some pipes detected have defects as hidden with a certain depth, and the detection wave fails to reach 50% alarm gate. This means there exist a quality risk, i.e., some defected pipes might be undetected. Briefed in the article are the operation principle and detection limitation of the flux-leakage detection process. Accordingly the solution for reducing the missing rate of sub-surface hidden defect of the steel pipe is proposed. And based on the Visual Basic program design language, the Double Gate color-catching software is developed. This software is designed with 25% or 30% level early-alarm gate so as to realize the function of double gates, i.e., the early-alarm gate and the original alarm gate during the flux-leakage detection operation. The software has such advantages as low development costs, small amount of codes, and quick response, being capable of effectively detecting deeply-hidden steel pipe defects. The actual operation of the software shows its satisfactory efficiency.