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1. 发明授权

US5677490A Ultrasonic testing device for weld seams in pipes, sheets and containers 失效
标题翻译：超声波检测设备用于管道，床单和容器中的焊缝
公开(公告)号：US5677490A
公开(公告)日：1997-10-14
申请号：US505339
申请日：1996-08-18
申请人： Werner Gunther , Bernhard Karbach , Helmut Heckhauser , Siegmar Schulz
发明人： Werner Gunther , Bernhard Karbach , Helmut Heckhauser , Siegmar Schulz
IPC分类号： G01N29/04 , G01N29/22 , G01N29/26 , G01N29/10
CPC分类号： G01N29/043 , G01N29/221 , G01N29/26 , G01N2291/044 , G01N2291/106 , G01N2291/2675
摘要： The ultrasonic testing device for weld seams (28) in pipes, sheets and containers, preferably for circumferential welds in pipelines, is fitted with two identical test head supports (20), each fitted with at least one test head (e.g., 23), arranged in lateral inversion to the weld seam, which acoustically irradiate from the basic material (30) of the pipes or sheets laterally into the weld seam (28) and are coupled to the surface of the basic material (30) opposite the root (32) of the weld seam (28). Each test head support (20) has a plurality of immersion test heads (22-24) arranged one behind the other or side-by-side transversely to the weld seam (28) in such a way that their acoustic irradiation entry regions into the basic material (30) are as close together as possible and of which a) one immersion test head (22) is directed so that it generated a creeping wave in the basic material (30) on the side of the root (36) of the weld seam (28) which spreads out at the surface and of which b) at least two other immersion test heads (23, 24) irradiate at a flatter angle than the first-mentioned head (22) for longitudinal fault testing, and one of these immersion test heads (23) for longitudinal faults irradiates the weld seam (28) in the region of the root (32).
摘要翻译： PCT No.PCT / DE94 / 00151 Sec。 371日期1996年2月16日 102（e）日期1996年2月16日PCT提交1994年2月14日PCT公布。公开号WO94 / 19686 日期1994年9月1日管道，片材和容器中焊缝（28）的超声波检测装置，优选用于管道中的圆周焊缝，配有两个相同的测试头支撑件（20），每个测试头支架均装有至少一个测试头例如23），其横向反转设置在焊接缝上，该焊缝从管道或片材的基本材料（30）侧向地声学照射到焊缝（28）中并且耦合到基材（30）的表面，与焊缝（28）的根部（32）相对。每个测试头支撑件（20）具有多个浸入式测试头（22-24），这些浸入式测试头（22-24）以横向于焊缝（28）的方式并排设置，使得它们的声辐射入口区域进入基本材料（30）尽可能靠近在一起，并且其中a）一个浸入式测试头（22）被引导为使得其在所述基础材料（30）的根部（36）侧产生蠕变波焊缝（28），其在表面上展开，其中b）至少两个其它浸没试验头（23,24）以比先前提及的头部（22）更平坦的角度照射用于纵向故障测试，并且这些用于纵向断层的浸没试验头（23）照射在根部（32）的区域中的焊缝（28）。

2. 发明授权

US5583292A Ultrasonic measuring process for the wall thickness curve of a weld seam of a pipe 失效
标题翻译：管道焊缝壁厚曲线超声波测量过程
公开(公告)号：US5583292A
公开(公告)日：1996-12-10
申请号：US119152
申请日：1993-09-23
申请人： Bernhard Karbach , Siegmar Schulz , Peter Steinert
发明人： Bernhard Karbach , Siegmar Schulz , Peter Steinert
IPC分类号： G01N29/22 , G01N29/26 , G01N29/04
CPC分类号： G01N29/223 , G01N29/26 , G01N2291/02854 , G01N2291/048
摘要： 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.
摘要翻译： 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。

3. 发明授权

US4492118A Nondestructive testing of structural material by means of ultrasonics 失效
标题翻译：通过超声波对结构材料进行无损检测
公开(公告)号：US4492118A
公开(公告)日：1985-01-08
申请号：US415830
申请日：1982-09-08
申请人： Hans-Jurgen Bathmann , Bernhard Hoh , Siegmar Schulz
发明人： Hans-Jurgen Bathmann , Bernhard Hoh , Siegmar Schulz
IPC分类号： G01N29/04 , G01N29/38 , G01S7/52
CPC分类号： G01N29/38 , G01S7/52026 , G01N2291/02854
摘要： Plate stock of uneven and variable thickness is tested for defects by means of ultrasonics whereby the zone adjacent the front surface and up to a depth of the minimum plate thickness is detected conventionally, but under utilization of a novel method the zone of variable thickness adjacent the rear wall is tested by detecting any echo in a gating period (15) that is returned from that zone or from the rear wall, and such an echo is used to set up a supplemental gating period during which either none or the rear wall echo will occur and in the latter case the setting up of the supplemental gating period is interpreted as having resulted from the presence of a defect (for example, echo 12) so that the occurrence of the rear wall echo 9 within the supplemental gating period is registered as an indication of a defect.
摘要翻译：通过超声波测试不均匀和可变厚度的板材缺陷，由此通过常规检测与前表面相邻并且达到最小板厚度的深度的区域，但是在使用新颖的方法下，可变厚度的区域邻近通过检测从该区域或后壁返回的门控周期（15）中的任何回波来测试后壁，并且使用这样的回波来建立补充门控周期，其中无或后壁回波将并且在后一种情况下，补充门控周期的设置被解释为由于存在缺陷（例如，回声12）而导致的，使得补充门控周期内的后壁回波9的发生被注册为指示缺陷。

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