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公开(公告)号：US11740206B2
公开(公告)日：2023-08-29
申请号：US17024906
申请日：2020-09-18
CPC分类号： G01N29/041 , G01N29/075
摘要： Detection, identification, and monitoring of various composite-damage types such as impact damage, delaminations, etc. using angle-beam coupled guided waves and methods and systems that permit excitation with angle-beam techniques of certain composite-material guided-wave modes that cannot be excited in isotropic metals with angle-beam methods.
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公开(公告)号：US20230266274A1
公开(公告)日：2023-08-24
申请号：US18298508
申请日：2023-04-11
CPC分类号： G01N29/14 , G01N29/4454 , G01N29/2437 , G01N29/46 , G01N2291/0289 , G01N2291/0258 , G01N2291/0231 , G01N2291/0232 , G01N2291/2634 , G01N2291/2693
摘要： The current disclosure determines if structural faults exist and extracts geometric features of the structural faults from acoustic emission waveforms, such as crack length and orientation, and can evaluate the structural faults online, during normal operation conditions.
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公开(公告)号：US11639915B2
公开(公告)日：2023-05-02
申请号：US17018327
申请日：2020-09-11
摘要： The current disclosure determines if structural faults exist and extracts geometric features of the structural faults from acoustic emission waveforms, such as crack length and orientation, and can evaluate the structural faults online, during normal operation conditions.
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公开(公告)号：US20220065739A1
公开(公告)日：2022-03-03
申请号：US17010988
申请日：2020-09-03
摘要： A new vibration test-cell that allows a static load to be applied simultaneously with lateral vibration coupled with in-situ microscopy that allows for the ability to open a fatigue crack up to a desired gap, as well as generate acoustic emission (AE) from vibration excitation, micro-fracture events are captured by the AE measurement while the physical observation of the crack faying surfaces is performed in-situ with an optical microscope embedded in the test cell.
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公开(公告)号：US10900934B2
公开(公告)日：2021-01-26
申请号：US15951566
申请日：2018-04-12
IPC分类号： G01N29/12 , G10K11/172 , G01N29/07 , G01N29/24 , G01N29/11 , G01N29/22 , G10K11/16 , G10K11/02 , G01N29/32
摘要： Structural health monitoring systems and methods are described that incorporate one or more acoustic black holes in a sensing capacity. The acoustic black hole provides low- or no-reflection capabilities combined with high displacement of an edge upon excitation. The sensor can be utilized to differentiate in-plane acousto-ultrasonic wave excitations from out-of-plane excitations as well as to separate the in-plane and out-of-plane components of an excitation acousto-ultrasonic wave. Sensors can incorporate features such as mode selectivity, omnidirectional sensing, frequency tunability, quasi-static strain insensitivity, and mechanical amplification.
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公开(公告)号：US09158054B2
公开(公告)日：2015-10-13
申请号：US13667710
申请日：2012-11-02
CPC分类号： G02B6/00 , B06B1/0651 , G01D5/35383 , G01H9/004 , G01M5/0033 , G01M5/0066 , G01M5/0091 , Y02B10/30
摘要： In one aspect, the present subject matter is directed to a sensor. The sensor includes an encapsulated fiber optic sensor and a ring shaped structure. The encapsulated fiber optic sensor passes through the ring shaped structure. The ring shaped structure is configured to resonate at a predetermined frequency.
摘要翻译： 在一个方面，本主题涉及传感器。 传感器包括封装的光纤传感器和环形结构。 封装的光纤传感器通过环形结构。 环形结构被配置为以预定频率谐振。
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公开(公告)号：US10724994B2
公开(公告)日：2020-07-28
申请号：US15378536
申请日：2016-12-14
发明人： Michael Van Tooren , Victor Giurgiutiu , Paul Ziehl , Bin Lin
摘要： Disclosed are composite structure health monitoring (SHM) systems that incorporate aspects of both a passive SHM system and an active SHM system. Systems provide a route for continuous monitoring to recognize potentially damaging events as well as to determine the location and intensity of damage in those instances in which the event does cause damage to the structure. Systems can provide improved monitoring with a low space and weight requirement, for instance when utilized for SHM of aircraft.
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8.发明申请公开(公告)号：US20200039153A1
公开(公告)日：2020-02-06
申请号：US16367541
申请日：2019-03-28
摘要： An in-situ fiber-optic temperature field measurement is disclosed that can allow process monitoring and diagnosis for thermoplastic composite welding and other applications. A distributed fiber-optic sensor can be permanently embedded in a thermoplastic welded structure when it is welded and left there to perform lifelong monitoring and inspection. The fiber optic sensor can include a dissolvable coating, or a coating matched to the composite material to be welded. Other applications include in-situ fiber-optic temperature field measurement on thermoset composite curing (autoclave), for thermoplastic and thermoset composites during compression molding, and for fiber-optic field measurements on freeze/thaw of large items of public health interest, such as stored or transported foodstuffs.
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公开(公告)号：US11958255B2
公开(公告)日：2024-04-16
申请号：US16367541
申请日：2019-03-28
IPC分类号： B29C65/00 , B29C65/36 , B29K307/04 , G01K11/32
CPC分类号： B29C66/91221 , B29C65/3636 , B29C65/3696 , B29C66/7212 , B29C66/73921 , B29C66/91211 , G01K11/32 , B29K2307/04
摘要： An in-situ fiber-optic temperature field measurement is disclosed that can allow process monitoring and diagnosis for thermoplastic composite welding and other applications. A distributed fiber-optic sensor can be permanently embedded in a thermoplastic welded structure when it is welded and left there to perform lifelong monitoring and inspection. The fiber optic sensor can include a dissolvable coating, or a coating matched to the composite material to be welded. Other applications include in-situ fiber-optic temperature field measurement on thermoset composite curing (autoclave), for thermoplastic and thermoset composites during compression molding, and for fiber-optic field measurements on freeze/thaw of large items of public health interest, such as stored or transported foodstuffs.
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公开(公告)号：US11680869B2
公开(公告)日：2023-06-20
申请号：US17010988
申请日：2020-09-03
CPC分类号： G01M7/025 , G01M7/022 , G01N3/32 , G01N2203/0067 , G01N2203/0658
摘要： A new vibration test-cell that allows a static load to be applied simultaneously with lateral vibration coupled with in-situ microscopy that allows for the ability to open a fatigue crack up to a desired gap, as well as generate acoustic emission (AE) from vibration excitation, micro-fracture events are captured by the AE measurement while the physical observation of the crack faying surfaces is performed in-situ with an optical microscope embedded in the test cell.
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