会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Ultrasonic measuring process for the wall thickness curve of a weld seam
of a pipe
    • 管道焊缝壁厚曲线超声波测量过程
    • US5583292A
    • 1996-12-10
    • US119152
    • 1993-09-23
    • Bernhard KarbachSiegmar SchulzPeter Steinert
    • Bernhard KarbachSiegmar SchulzPeter Steinert
    • G01N29/22G01N29/26G01N29/04
    • G01N29/223G01N29/26G01N2291/02854G01N2291/048
    • An ultrasonic measuring process is disclosed for measuring the wall thickness variation in the region of the welding seam of a pipe. At least two testing heads are each acoustically coupled to the pipe by a water jet. The acoustic entry zones of the testing heads are moved together in relation to the pipe, parallel to the axis of the pipe. At least one of the testing heads is moved back and forth across the axis of the tube, crossing over the welding seam. The acoustic entry zone can be moved by modulation of a phased array. The second testing head either emits acoustic radiation into the pipe always outside the welding seam or also crosses the welding seam, but at different times than the first testing head. The signals of both testing heads are processed in a measurement value processing circuit such that simultaneously occurring measurement value deviations supply no output signal.
    • PCT No.PCT / DE91 / 00578 Sec。 371日期:1993年9月23日 102(e)1993年9月23日PCT PCT 1991年7月16日PCT公布。 出版物WO92 / 16832 日期1992年10月1日公开了一种用于测量管道焊缝区域中壁厚变化的超声波测量方法。 至少两个测试头通过水射流声学耦合到管道。 测试头的声学进入区域相对于管道平行于管道的轴线一起移动。 至少一个测试头在管的轴线上来回移动,穿过焊缝。 可以通过相控阵列的调制来移动声音进入区域。 第二个测试头或者将声辐射发射到总是在焊缝外部的管中,或者穿过焊缝,但是在不同于第一测试头的时间。 两个测试头的信号在测量值处理电路中被处理,使得同时出现的测量值偏差不提供输出信号。