-
公开(公告)号：US11642697B2
公开(公告)日：2023-05-09
申请号：US16753271
申请日：2018-11-06
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.
-
公开(公告)号：US12031950B2
公开(公告)日：2024-07-09
申请号：US17601671
申请日：2020-03-23
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.
-
公开(公告)号：US20200331028A1
公开(公告)日：2020-10-22
申请号：US16753271
申请日：2018-11-06
发明人： Jimmy Fong
IPC分类号： B06B1/06
摘要： An ultrasonic transducer (1) is disclosed. The transducer includes a wear cap (2) and an active element (18). The wear cap includes at least one slot arranged so as to define a strip (15). The strip is arranged to be in vibrational communication with the active element. The ultrasonic transducer may include a rigid block (21). 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 (25, 27).
-
公开(公告)号：US12117416B2
公开(公告)日：2024-10-15
申请号：US17274740
申请日：2019-06-19
发明人： Stefano Mariani
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.
-
公开(公告)号：US20220163487A1
公开(公告)日：2022-05-26
申请号：US17601671
申请日：2020-03-23
发明人： Nick Kemp , Keith Vine
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.
-
公开(公告)号：US11022436B2
公开(公告)日：2021-06-01
申请号：US16323381
申请日：2017-08-01
发明人： Tomasz Pialucha
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.
-
公开(公告)号：US20210108916A1
公开(公告)日：2021-04-15
申请号：US17052117
申请日：2019-10-09
发明人： Keith Vine , Thomas Vogt , Stefan Joshua Milewczyk
IPC分类号： G01B17/02
摘要： A method of determining a thickness of an elongate or extended structure (2; FIG. 8) using elastic waves is disclosed. The method comprises receiving at least one time-domain signal from a transducer (12), generating a frequency-domain signal in dependence upon the at least one time-domain signal, reducing noise in the frequency-domain signal to provide a de-noised frequency-domain signal, comparing the de-noised frequency-domain signal with at least one reference signal, each reference signal corresponding to a respective thickness; and determining the thickness of the elongate or extended structure in dependence comparing the de-noised frequency-domain signal with the at least one reference signal.
-
公开(公告)号：US20200173773A1
公开(公告)日：2020-06-04
申请号：US16323381
申请日：2017-08-01
发明人： Tomasz Pialucha
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.
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.017 秒)
