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公开(公告)号：US20240344923A1
公开(公告)日：2024-10-17
申请号：US18751431
申请日：2024-06-24
申请人： IHI Corporation
发明人： Kensuke SHIOMI , Teruyoshi OTOYO , Takaomi INADA
摘要： A vibration test jig includes: a base installed on a vibration table, including a mounting surface on which the end of the test body is mounted; a top plate placed on the base with a gap therebetween, including a slot having an inner surface that presses the end of the test body toward the mounting surface; a reinforcing portion placed along the slot; and pressing members arranged along the slot and configured to press the reinforcing portion toward the base. A thickness of the reinforcing portion varies along the slot in accordance with a magnitude of a fluctuating load generated in the top plate during vibration thereof.
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公开(公告)号：US20240055968A1
公开(公告)日：2024-02-15
申请号：US18377625
申请日：2023-10-06
发明人： Sigeru Matsumoto
摘要： A linear actuator comprises a base, a fixed part support mechanism attached to the base, a fixed part elastically supported by the fixed part support mechanism, and a movable part driven to reciprocate in a predetermined drive direction with respect to the fixed part. The fixed part support mechanism comprises a linear guide that couples the fixed part to the base to be slidable in the predetermined drive direction, and an elastic member that couples the fixed part to the base to be elastically movable in the predetermined drive direction. The linear guide includes a rail attached to the fixed part, and a runner block attached to the base, the runner block being engaged with the rail slidably in the drive direction.
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公开(公告)号：US11774320B1
公开(公告)日：2023-10-03
申请号：US18333561
申请日：2023-06-13
申请人： xMEMS Labs, Inc.
发明人： Kuan-Ju Tseng , Wen-Chien Chen , Chiung C. Lo
IPC分类号： G01M7/02
摘要： An acoustic impedance measuring system configured to measure an acoustic impedance of an acoustic component includes a first chamber, a second chamber, a first sound pressure sensing device, a second sound pressure sensing device and a sound source. The first sound pressure sensing device is configured to sense a sound pressure in the first chamber. The second sound pressure sensing device is configured to sense a sound pressure in the second chamber. The sound source is connected to the first chamber, wherein the sound source generates a sound propagating towards a first cavity inside the first chamber. The acoustic component is disposed between the first chamber and the second chamber for being measured the acoustic impedance of the acoustic component, and the acoustic impedance of the acoustic component is measured by the first sound pressure sensing device and the second sound pressure sensing device.
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公开(公告)号：US20230306157A1
公开(公告)日：2023-09-28
申请号：US18190271
申请日：2023-03-27
申请人： JIANGHAN UNIVERSITY
发明人： Longjun XU , Haoyu WU , Shibin LIN , Guochen ZHAO , Qinghui LAI , Qihan XU , Lili XIE
摘要： The present application provides a soil-rock fault simulation device, comprising a base, a support arm, a first box body and a second box body; the first box body is movably mounted on the support arm and moves in a left and right direction to facilitate the movement of the first box body relative to the second box body in the left and right direction; the first box body moves in a forward and backward direction relative to the second box body as the support arm moves in a forward and backward direction relative to the base, and the first soil-rock in the first soil-rock space forms a forward-backward direction fault as the first box body moves in a forward and backward direction relative to the second box body; the fault simulation effect of soil-rock fault simulation device is improved.
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公开(公告)号：US20180156690A1
公开(公告)日：2018-06-07
申请号：US15697865
申请日：2017-09-07
发明人： Tsu-Jen WANG , Wei-Fang CHANG
IPC分类号： G01M7/06
CPC分类号： G01M7/06 , G01M7/027 , G21C17/001
摘要： A rotatable fixture for use in a vibration or seismic test is capable of shortening the time for dismantling the fixture. The rotatable fixture of the present invention is aimed to obviate the non-universalness of the conventional fixture and remove the drawbacks that the conventional fixture has to be dismantled before rotating to a certain angle for test. The rotatable fixture of the present invention includes a base, a rotating disc, a fastening frame, and fixing plates. The rotatable fixture has a basic natural frequency which is distant from the test frequency band. Meanwhile, the drawbacks that the fixture has to be dismantled during the test process is eliminated by the special connection between the base and the rotating disc. Moreover, due to the versatile design of the fastening frame, the rotatable fixture can allow a variety of devices under test to be secured thereto to attain universalness.
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公开(公告)号：US09810612B2
公开(公告)日：2017-11-07
申请号：US14891281
申请日：2014-05-09
发明人： Jean Vincent Manuel Meriaux , Guillaume Puech , Juan-Antonio Ruiz-Sabariego , Nathalie Serres , Laurent Houze
CPC分类号： G01N3/02 , G01M7/027 , G01M15/14 , G01N3/04 , G01N3/32 , G01N2203/0005 , G01N2203/0008 , G01N2203/0423
摘要： A low-cycle fatigue test rig reproduces bearing of turbine engine parts. The test rig includes a support member that is fixed to a frame and defines at least one bearing surface. A test piece is connected to a traction element for loading the test piece so that the test piece bears against the at least one bearing surface of the support member. The at least one bearing surface is supported by a support element that is mounted to rotate about a first axis on the support member. The test piece is connected to the traction element for articulation around a second axis that is perpendicular to the first axis. The test rig is configured to enable adjusting and locking the support element and the test piece in positions around the above-mentioned axes.
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公开(公告)号：US09666094B2
公开(公告)日：2017-05-30
申请号：US14647342
申请日：2013-09-05
发明人： Eisei In , Tomohiro Hosaka
IPC分类号： G01M15/00 , G09B9/04 , G01M7/02 , G01M17/007 , G09B9/12 , F16M11/12 , F16M11/20 , G09B9/02 , F16M11/18 , G09B9/05 , G09B9/06 , G09B9/08 , G09B9/14
CPC分类号： G09B9/04 , F16M11/121 , F16M11/18 , F16M11/2085 , F16M11/2092 , G01M7/022 , G01M7/027 , G01M17/007 , G09B9/02 , G09B9/05 , G09B9/06 , G09B9/08 , G09B9/12 , G09B9/14
摘要： A test device includes a base plate configured to move on a slipping floor in X-Y directions substantially parallel to the slipping floor by an air bearing, and rotate around an axis substantially perpendicular to the slipping floor, and a platform connected to the base plate by a movement connecting mechanism. The base plate is between the slipping floor and the platform. The movement mechanism connected pivotally with the base plate is configured to move on the slipping floor in the X-Y directions, and rotate around the axis. When the base plate is at substantially a center of the slipping floor's upper surface, the tips of the movement mechanism are directed to points on a circle C or points close to C, and a central angle between a line from C's center to one of the tips and a line from C's center to another tip is 120°.
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公开(公告)号：US09638602B2
公开(公告)日：2017-05-02
申请号：US14682424
申请日：2015-04-09
申请人： Raytheon Company
IPC分类号： G01M7/02
摘要： A system includes a vibration test system and a test fixture. The vibration test system includes a slip table, and the vibration test system is configured to vibrate the slip table. The slip table includes an electromagnet. The test fixture is configured to receive at least one article to be subjected to vibration testing. At least part of the test fixture is configured to be magnetically attracted to the electromagnet in order to secure the test fixture to the electromagnet. The system may also include a material handling robot configured to lift and move the test fixture and multiple testing stations configured to perform tests on the at least one article, where the material handling robot is configured to move the test fixture to and from each of the testing stations.
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公开(公告)号：US09354138B2
公开(公告)日：2016-05-31
申请号：US13933882
申请日：2013-07-02
IPC分类号： G01M7/02
CPC分类号： G01M7/027
摘要： A fixture for securing at least one test printed circuit board assembly (PCBA) including a PCB having semiconductor devices mounted thereon during vibration or mechanical shock testing. A top plate includes top features including a continuous top outer ring, at least one inner top aperture within the top outer ring, and a plurality of outer top apertures positioned beyond the top outer ring including a top probe access aperture and a threaded aperture. A bottom plate includes bottom features including a bottom continuous outer ring, at least one inner bottom aperture, and plurality of outer bottom apertures including a bottom probe access aperture and table mounting aperture. The threaded apertures accept a fastener that clamps the top plate to the bottom plate for the outer rings to secure a full periphery of the PCB between the top plate and bottom plate.
摘要翻译： 一种用于固定至少一个测试印刷电路板组件（PCBA）的夹具，其包括在振动或机械冲击测试期间安装有半导体器件的PCB。 顶板包括顶部特征，包括连续的顶部外环，顶部外环内的至少一个内部顶部孔，以及定位在顶部外环之外的包括顶部探针进入孔和螺纹孔的多个外部顶部孔。 底板包括底部特征，其包括底部连续外部环，至少一个内部底部孔，以及包括底部探针进入孔和工作台安装孔的多个外部底部孔。 螺纹孔接收将顶板夹紧到底板的紧固件，用于外圈，以将PCB的整个周边固定在顶板和底板之间。
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公开(公告)号：US20150323414A1
公开(公告)日：2015-11-12
申请号：US14647203
申请日：2013-09-05
发明人： Eisei In , Ryotaro Masuyama
IPC分类号： G01M7/02
摘要： [Problem] The invention is to provide a test device, in which the weight of the platform that is the moving part is light, and the rigidity is high, and in which a movement steady with a light base can be achieved, and in which the simulation up to a high frequency is possible by small power and in a small space, and in which it is cheap and compact. [Resolution Approach] The test device of the invention comprising: a platform 18, which is connected on the base plate 14 by a movement connecting mechanism 16, and in which a parts to be driven 30 is provided, and a magnetizing device 40, which is disposed on a lower surface of the base plate 14 to face the slipping floor, and in which magnetizing force to the slipping floor 12 can be changed, wherein, in the operating state in which an air pressure of the air bearing 34 is high, the magnetizing force to the slipping floor 12 of the magnetizing device 40 is strong, and in the non-operating state in which an air pressure of the air bearing 34 is low, the magnetizing force to the slipping floor 12 of the magnetizing device 40 is weak.
摘要翻译： 发明内容本发明是提供一种测试装置，其中作为移动部件的平台的重量是轻的，并且刚度高，并且其中可以实现具有光基的稳定运动，并且其中 通过小功率和小空间可以实现高频率的模拟，并且其便宜且紧凑。 [解决方法]本发明的测试装置包括：平台18，其通过移动连接机构16连接在基板14上，其中设置有待驱动部件30的部件和磁化装置40， 设置在基板14的下表面上，以面对滑动地板，并且可以改变滑移地板12的磁化力，其中，在空气轴承34的空气压力高的运行状态下， 磁化装置40的滑动底板12的磁化强度很强，而在空气轴承34的空气压力低的非运转状态下，磁化装置40的滑动板12的磁化力为 弱。
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