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公开(公告)号：US11747810B2
公开(公告)日：2023-09-05
申请号：US17246973
申请日：2021-05-03
CPC分类号： G05D1/0094 , G01B5/18 , G01B17/02 , G05D1/024 , G05D1/027 , G05D1/0255 , G05D1/048 , G05D2201/0207
摘要： Indoors positioning and navigation systems and methods are described herein. In one embodiment, a system for inspecting or maintaining a storage tank includes a vehicle having: at least one sensor for determining properties of a storage tank and a navigation system. The navigation system includes an acoustic transmitter carried by the vehicle and an inertial measurement unit (IMU) sensor configured to at least partially determine a location of the vehicle with respect to the storage tank. The vehicle also includes a propulsion unit configured to move the vehicle within the storage tank, and an acoustic receiver fixed with respect to the storage tank. The vehicle moves inside the storage tank in concentric arcs with respect to the acoustic receiver.
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公开(公告)号：US11209401B2
公开(公告)日：2021-12-28
申请号：US16490479
申请日：2018-03-02
摘要： Systems and methods for detecting corrosion in pipes are disclosed herein. In one embodiment, an apparatus for detecting corrosion in an object includes an electromagnetic acoustic transducer (EMAT) having a ferromagnetic core and a plurality of permanent magnets arranged peripherally around the ferromagnetic core. The permanent magnets are arranged to produce a magnetic field through the ferromagnetic core. The apparatus also includes a coil between the ferromagnetic core and the object.
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公开(公告)号：US20210271244A1
公开(公告)日：2021-09-02
申请号：US17246973
申请日：2021-05-03
摘要： Indoors positioning and navigation systems and methods are described herein. In one embodiment, a system for inspecting or maintaining a storage tank includes a vehicle having: at least one sensor for determining properties of a storage tank and a navigation system. The navigation system includes an acoustic transmitter carried by the vehicle and an inertial measurement unit (IMU) sensor configured to at least partially determine a location of the vehicle with respect to the storage tank. The vehicle also includes a propulsion unit configured to move the vehicle within the storage tank, and an acoustic receiver fixed with respect to the storage tank. The vehicle moves inside the storage tank in concentric arcs with respect to the acoustic receiver.
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公开(公告)号：US10408796B2
公开(公告)日：2019-09-10
申请号：US15488285
申请日：2017-04-14
摘要： Systems and methods for non-destructive testing of specimens are disclosed herein. In one embodiment, an electromagnetic acoustic transducer (EMAT) includes an electro-permanent magnet (EPM) configured to controllably apply a biasing magnetic flux to a target location. The EPM includes a hard magnet, and a soft magnet at least partially enclosing the hard magnet. The EPM also includes a magnetizing coil having a plurality of turns at least partially encircling the soft magnet. The magnetizing coil is configured to controllably magnetically bias the soft magnet when a current is applied to the magnetizing coil.
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公开(公告)号：US10378123B2
公开(公告)日：2019-08-13
申请号：US16065688
申请日：2017-10-31
发明人： Vincent Fratello
IPC分类号： C30B11/00 , C30B29/32 , C30B15/00 , C30B19/00 , C30B23/00 , C30B25/00 , C30B29/22 , C30B29/30 , C30B11/14 , C30B15/36 , C30B19/12 , C30B25/06
摘要： Growth of single crystal epitaxial films of the perovskite crystal structure by liquid- or vapor-phase means can be accomplished by providing single-crystal perovskite substrate materials of improved lattice parameter match in the lattice parameter range of interest. Current substrates do not provide as good a lattice match, have inferior properties, or are of limited size and availability because cost of materials and difficulty of growth. This problem is solved by the single-crystal perovskite solid solutions described herein grown from mixtures with an indifferent melting point that occurs at a congruently melting composition at a temperature minimum in the melting curve in the pseudo-binary molar phase diagram. Accordingly, single-crystal perovskite solid solutions, structures, and devices including single-crystal perovskite solid solutions, and methods of making single-crystal perovskite solid solutions are described herein.
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公开(公告)号：US20190049411A1
公开(公告)日：2019-02-14
申请号：US16075525
申请日：2017-02-03
摘要： Systems and methods for inspection of pipelines are disclosed herein. In one embodiment, an electromagnetic acoustic transducer (EMAT) transceiver (TRX) for inspecting a pipe includes a multichannel EMAT transmitter (TX) having multiple collocated transmitter coils. The EMAT TX can generate forward-propagating ultrasound waves and backward-propagating ultrasound waves. The forward-propagating ultrasound waves have higher amplitude than the backward-propagating ultrasound waves. The EMAT TRX also includes a multichannel EMAT receiver (RX) having multiple receiver coils that can receive the ultrasound waves transmitted by the EMAT TX through the pipe.
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7.发明申请公开(公告)号：US20190003077A1
公开(公告)日：2019-01-03
申请号：US16065688
申请日：2017-10-31
发明人： Vincent Fratello
CPC分类号： C30B29/32 , C30B11/00 , C30B11/14 , C30B15/00 , C30B15/36 , C30B19/00 , C30B19/12 , C30B23/00 , C30B25/00 , C30B25/06 , C30B29/22 , C30B29/30
摘要： Growth of single crystal epitaxial films of the perovskite crystal structure by liquid- or vapor-phase means can be accomplished by providing single-crystal perovskite substrate materials of improved lattice parameter match in the lattice parameter range of interest. Current substrates do not provide as good a lattice match, have inferior properties, or are of limited size and availability because cost of materials and difficulty of growth. This problem is solved by the single-crystal perovskite solid solutions described herein grown from mixtures with an indifferent melting point that occurs at a congruently melting composition at a temperature minimum in the melting curve in the pseudo-binary molar phase diagram. Accordingly, single-crystal perovskite solid solutions, structures, and devices including single-crystal perovskite solid solutions, and methods of making single-crystal perovskite solid solutions are described herein.
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公开(公告)号：US20230359206A1
公开(公告)日：2023-11-09
申请号：US18349889
申请日：2023-07-10
CPC分类号： G05D1/0094 , G01B5/18 , G01B17/02 , G05D1/024 , G05D1/0255 , G05D1/027 , G05D1/048 , G05D2201/0207
摘要： Indoors positioning and navigation systems and methods are described herein. In one embodiment, a system for inspecting or maintaining a storage tank includes a vehicle having: at least one sensor for determining properties of a storage tank and a navigation system. The navigation system includes an acoustic transmitter carried by the vehicle and an inertial measurement unit (IMU) sensor configured to at least partially determine a location of the vehicle with respect to the storage tank. The vehicle also includes a propulsion unit configured to move the vehicle within the storage tank, and an acoustic receiver fixed with respect to the storage tank. The vehicle moves inside the storage tank in concentric arcs with respect to the acoustic receiver.
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公开(公告)号：US20220373516A1
公开(公告)日：2022-11-24
申请号：US17860928
申请日：2022-07-08
摘要： Operating parameters are selected for inspecting a structure. Selecting the operating parameters includes exciting broadband ultrasonic guided waves in a multilayered structure, acquiring data corresponding to the sensed broadband ultrasonic guided waves in the multilayered structure, selecting one or more narrow frequency bands based on the acquired data, and inspecting the multilayered structure using ultrasonic guided waves in the one or more narrow frequency bands. In some examples, the data is acquired by an inspection tool capable of sensing the broadband ultrasonic guided waves in the multilayered structure.
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公开(公告)号：US20220137004A1
公开(公告)日：2022-05-05
申请号：US17544520
申请日：2021-12-07
摘要： Systems and methods for detecting corrosion in pipes are disclosed herein. In one embodiment, an apparatus for detecting corrosion in an object includes an electromagnetic acoustic transducer (EMAT) having a ferromagnetic core and a plurality of permanent magnets arranged peripherally around the ferromagnetic core. The permanent magnets are arranged to produce a magnetic field through the ferromagnetic core. The apparatus also includes a coil between the ferromagnetic core and the object.
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