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METHOD FOR ERROR-FREE CHECKING OF TUBES FOR SURFACE FAULTS

机译:用于表面故障的管材的无差错检查方法

摘要

According to the invention, a near-real-time recording and analysis of data ispossible by means of the following steps: generation of a continuous analoguesignal, containing the back wall echoes, generation of a trigger signal inaddition to the US-signals, conversion of the analogue signal into a digitalsignal curve in a time window t1 to t2 with k data points with an adjustabletime t1 after a trigger pulse, the time t1 being set such that the signalreflected from the other surface side with the anticipated error signal lieswithin the time interval [t1 to t2], direct supply of the signal curve to adigital computer unit to carry out the wavelet transformation, optionaldigital transmission and analysis of the filtered signals on a superior dataprocessing system or analysis of the filtered signals on the digital computerunit, comparison of the determined parameter with a reference parameter,whereupon a determined error signal can be unambiguously assigned to the erroron the tube surface.
机译:根据本发明,数据的近实时记录和分析是可能通过以下步骤进行:生成连续的类似物包含后壁回波的信号,产生触发信号除美国信号外,还将模拟信号转换为数字信号时间窗口t1至t2中的信号曲线,其中k个数据点可调触发脉冲后的时间t1,设置时间t1使得信号从另一面反射并带有预期的误差信号在时间间隔[t1至t2]内,将信号曲线直接提供给数字计算机单元进行小波变换,可选数字传输和对上乘数据的滤波信号进行分析处理系统或在数字计算机上分析滤波后的信号单位,确定的参数与参考参数的比较,这样就可以将确定的错误信号明确分配给错误在管子表面上。

著录项

  • 公开/公告号CA2616900C

    专利类型

  • 公开/公告日2013-12-03

    原文格式PDF

  • 申请/专利权人 V & M DEUTSCHLAND GMBH;

    申请/专利号CA20062616900

  • 发明设计人 SCHMITTE TILL;ORTH THOMAS;NITSCHE STEFAN;

    申请日2006-07-28

  • 分类号G01N29/46;G01N29/04;

  • 国家 CA

  • 入库时间 2022-08-21 15:54:47

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