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1. 发明申请

US20200173773A1 DETERMINING A THICKNESS OF A REGION OF WALL- OR PLATE-LIKE STRUCTURE 审中-公开
公开(公告)号：US20200173773A1
公开(公告)日：2020-06-04
申请号：US16323381
申请日：2017-08-01
申请人： Guided Ultrasonics Ltd
发明人： Tomasz Pialucha
IPC分类号： G01B17/02 , G01N29/04 , G01N29/07 , B06B1/08 , G01N29/24
摘要： A method of determining a thickness of a region of wall- or plate-like structure which is thinner than a thickness of a surrounding region of the structure due to a cavity in the structure is disclosed. The method comprises comparing a measured time-frequency dispersion map for at least one dispersive guided wave obtained by measuring the structure using guided waves with a reference time-frequency dispersion map obtained by modelling the structure, determining a cut-off frequency, fc, at which the measured time-frequency dispersion map and the reference time-frequency dispersion map differ and calculating the thickness of the thinner region in dependence upon the cut-off frequency.

2. 发明授权

US11642697B2 Ultrasonic transducer 有权
公开(公告)号：US11642697B2
公开(公告)日：2023-05-09
申请号：US16753271
申请日：2018-11-06
申请人： Guided Ultrasonics Ltd
发明人： Jimmy Fong
IPC分类号： B06B1/06
CPC分类号： B06B1/0685
摘要： An ultrasonic transducer is disclosed. The transducer includes a wear cap and an active element. The wear cap includes at least one slot arranged so as to define a strip. The strip is arranged to be in vibrational communication with the active element. The ultrasonic transducer may include a rigid block. The active element may be interposed between the wear cap and the rigid block, and the rigid block may be configured to provide a backing mass for the active element. Optionally, the rigid block may include chamfered edges.

3. 发明授权

US09927405B2 Processing signals acquired during guided wave testing 有权
公开(公告)号：US09927405B2
公开(公告)日：2018-03-27
申请号：US13812384
申请日：2011-03-25
申请人： Thomas Vogt
发明人： Thomas Vogt
IPC分类号： G01N29/11 , G01N29/44 , G01N29/04 , G01N29/46
CPC分类号： G01N29/44 , G01N29/043 , G01N29/11 , G01N29/4463 , G01N29/46 , G01N2291/0425 , G01N2291/044 , G01N2291/2634
摘要： Processing signals acquired during guided wave testing A method of processing signals acquired during guided wave testing of an elongate member (2), such as a pipe, in which at least one guided wave (7) is generated in the elongate member, the at least one guided wave is reflected by reflectors (8) in the elongate member and reflected guided waves (9) are detected. The method comprises determining at least one reflection coefficient or a parameter for calibrating a guide wave test in dependence upon reflections from the reflectors which include at least one multiple reflection. The reflections may include a single reflection from a first reflector, a single reflection from a second reflector and a multiple reflection from the first and second reflectors.

4. 发明授权

US09065038B2 Transducer assembly 有权
标题翻译：传感器组件
公开(公告)号：US09065038B2
公开(公告)日：2015-06-23
申请号：US13640946
申请日：2011-02-28
申请人： Brian Nicholas Pavlakovic
发明人： Brian Nicholas Pavlakovic
IPC分类号： H01L41/08 , H04R17/00 , G01N29/265 , H01L41/053 , G01N29/07 , G01N29/24
CPC分类号： H01L41/0533 , G01N29/07 , G01N29/2437 , G01N29/265 , G01N2291/0289 , G01N2291/2634
摘要： An ultrasonic transducer includes a wear plate (2), a piezoelectric element (8) arranged rearwards of the wear plate and a rigid block (16) arranged rearwards of the piezoelectric element and configured to provide a backing mass for the piezoelectric element. The wear plate extends across the piezoelectric element and rearwards so as to provide a cap over the piezoelectric element and sides of at least a forward portion of the rigid block.
摘要翻译：超声波换能器包括耐磨板（2），布置在耐磨板的后方的压电元件（8）和布置在压电元件的后方的刚性块（16），并被配置成为压电元件提供背衬质量。耐磨板延伸穿过压电元件并向后延伸，以便在压电元件上方提供一盖，并且至少在刚性块的前部的侧面。

5. 发明授权

US08356518B2 Method and apparatus for ultrasonically inspecting pipes 有权
标题翻译：超声波检查管道的方法和装置
公开(公告)号：US08356518B2
公开(公告)日：2013-01-22
申请号：US12298333
申请日：2007-04-24
申请人： David Alleyne , Steve Banks , Brian Pavlakovic
发明人： David Alleyne , Steve Banks , Brian Pavlakovic
IPC分类号： G01N29/24
CPC分类号： G01N29/265 , G01N29/221 , G01N29/225 , G01N29/28 , G01N2291/106 , G01N2291/2636
摘要： An apparatus for inspecting a pipe comprising a body adapted for passage through the bore of a pipe to be inspected, a main transducer array comprising a plurality of circumferentially spaced transducers for transmitting ultrasound energy, the transducers being mounted on the body for movement between a retracted position, wherein the body can freely move through the bore of the pipe, and an extended position wherein the plurality of transducers are pressed into operative contact with the inner wall of the pipe. An actuator selectively urges the plurality of transducers to their extended positions. A control transmits ultrasound energy into the pipe to propagate a guided wave within the pipe walls in at least one longitudinal direction along the pipe when the transducers are in their operative position and receives the propagated wave and analyzes the wave to determine the presence or absence of defects in the pipe wall.
摘要翻译：一种用于检查管道的装置，其包括适于通过待检查管道的孔的主体，主换能器阵列，包括用于传输超声能量的多个周向间隔的换能器，所述换能器安装在所述主体上以在缩回位置，其中主体可以自由地移动通过管的孔，以及延伸位置，其中多个换能器被压入与管的内壁有效接触。致动器选择性地将多个换能器推送到它们的伸出位置。当换能器处于其操作位置并且接收传播的波并且分析波以确定是否存在或不存在时，控制器将超声波能量传递到管中以沿着管道在至少一个纵向方向上在管壁内传播导波管壁缺陷。

6. 发明授权

US12031950B2 Ultrasonic sensor for guided wave testing 有权
公开(公告)号：US12031950B2
公开(公告)日：2024-07-09
申请号：US17601671
申请日：2020-03-23
申请人： Guided Ultrasonics Ltd
发明人： Nick Kemp , Keith Vine
IPC分类号： G01N29/04 , G01N29/22 , G01N29/24 , G01N33/204
CPC分类号： G01N29/245 , G01N29/04 , G01N29/223 , G01N33/204 , G01N2291/0234 , G01N2291/106 , G01N2291/2634
摘要： An ultrasonic sensor for guided wave testing is disclosed. The sensor comprises a flexible circuit board, an array of piezoelectric elements on the flexible circuit board and an array of permanent magnets. Each piezoelectric element is interposed between a respective permanent magnet and the flexible circuit board.

7. 发明申请

US20130179098A1 PROCESSING SIGNALS ACQUIRED DURING GUIDED WAVE TESTING 有权
标题翻译：在引导波形测试期间获得的处理信号
公开(公告)号：US20130179098A1
公开(公告)日：2013-07-11
申请号：US13812384
申请日：2011-03-25
申请人： Thomas Vogt
发明人： Thomas Vogt
IPC分类号： G01N29/44
CPC分类号： G01N29/44 , G01N29/043 , G01N29/11 , G01N29/4463 , G01N29/46 , G01N2291/0425 , G01N2291/044 , G01N2291/2634
摘要： Processing signals acquired during guided wave testing A method of processing signals acquired during guided wave testing of an elongate member (2), such as a pipe, in which at least one guided wave (7) is generated in the elongate member, the at least one guided wave is reflected by reflectors (8) in the elongate member and reflected guided waves (9) are detected. The method comprises determining at least one reflection coefficient or a parameter for calibrating a guide wave test in dependence upon reflections from the reflectors which include at least one multiple reflection. The reflections may include a single reflection from a first reflector, a single reflection from a second reflector and a multiple reflection from the first and second reflectors.
摘要翻译：在导波测试期间获取的处理信号处理在细长构件（2）（例如管道）的导波测试期间获取的信号的方法，其中在细长构件中产生至少一个导波（7），至少一个导波被细长构件中的反射器（8）反射，并且检测到反射的导波（9）。该方法包括根据包括至少一个多重反射的反射器的反射来确定用于校准导波测试的至少一个反射系数或参数。反射可以包括来自第一反射器的单个反射，来自第二反射器的单个反射和来自第一和第二反射器的多次反射。

8. 发明授权

US12117416B2 Signal processing 有权
公开(公告)号：US12117416B2
公开(公告)日：2024-10-15
申请号：US17274740
申请日：2019-06-19
申请人： Guided Ultrasonics Ltd
发明人： Stefano Mariani
IPC分类号： G01N29/04 , G01N29/22 , G01N29/32 , G01N29/44
CPC分类号： G01N29/04 , G01N29/223 , G01N29/326 , G01N29/44 , G01N2291/023 , G01N2291/0289 , G01N2291/2634
摘要： A method of processing a signal is disclosed. The method comprises receiving a signal obtained from measuring a structure under a given set of environmental and/or operational conditions, the signal comprising a set of amplitude values which depend on position in the signal and adjusting the amplitude value each of at least two of the amplitude values independently according to the position of the amplitude value in the signal and according to the given environmental and/or operational conditions.

9. 发明申请

US20220163487A1 ULTRASONIC SENSOR FOR GUIDED WAVE TESTING 有权
公开(公告)号：US20220163487A1
公开(公告)日：2022-05-26
申请号：US17601671
申请日：2020-03-23
申请人： Guided Ultrasonics Ltd
发明人： Nick Kemp , Keith Vine
IPC分类号： G01N29/24 , G01N29/04 , G01N29/22
摘要： An ultrasonic sensor for guided wave testing is disclosed. The sensor comprises a flexible circuit board (2), an array of piezoelectric elements (10) on the flexible circuit board and an array of permanent magnets (16). Each piezoelectric element is interposed between a respective permanent magnet and the flexible circuit board.

10. 发明授权

US11022436B2 Determining a thickness of a region of wall- or plate-like structure 有权
公开(公告)号：US11022436B2
公开(公告)日：2021-06-01
申请号：US16323381
申请日：2017-08-01
申请人： Guided Ultrasonics Ltd
发明人： Tomasz Pialucha
IPC分类号： B06B1/08 , G01B17/02 , G01N29/04 , G01N29/07 , G01N29/24
摘要： A method of determining a thickness of a region of wall- or plate-like structure which is thinner than a thickness of a surrounding region of the structure due to a cavity in the structure is disclosed. The method comprises comparing a measured time-frequency dispersion map for at least one dispersive guided wave obtained by measuring the structure using guided waves with a reference time-frequency dispersion map obtained by modelling the structure, determining a cut-off frequency, fc, at which the measured time-frequency dispersion map and the reference time-frequency dispersion map differ and calculating the thickness of the thinner region in dependence upon the cut-off frequency.

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