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公开(公告)号：US11686627B2
公开(公告)日：2023-06-27
申请号：US16604426
申请日：2018-04-10
Applicant: Etegent Technologies LTD.
Inventor： Richard A. Roth, II , Stuart J. Shelley , Kevin Sigmund , Oleg Lobkis
CPC classification number: G01K11/24 , G01L1/10 , G01L11/06 , G01N29/075 , G01N29/42 , G01N29/44 , G01N29/4454 , G10K11/24 , H01P3/10 , G01N2291/044
Abstract: An active mechanical waveguide including an ultrasonically-transmissive material and a plurality of reflection points defined along a length of the waveguide may be driven at multiple resonant frequencies to sense environmental conditions, e.g., using tracking of a phase derivative. In addition, frequency-dependent reflectors may be incorporated into an active mechanical waveguide, and a drive frequency may be selected to render the frequency-dependent reflectors substantially transparent.
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公开(公告)号：US20200149980A1
公开(公告)日：2020-05-14
申请号：US16604434
申请日：2018-04-10
Applicant: Etegent Technologies LTD.
Inventor： Richard A. Roth, II , Stuart J. Shelley , Kevin Sigmund , Oleg Lobkis
IPC: G01K11/24
Abstract: An active mechanical waveguide including an ultrasonically-transmissive material and a plurality of reflection points defined along a length of the waveguide may be dampened using a damping device on a plurality of support members for the waveguide and/or using a damping device on the waveguide itself, and variable spacing of support members and/or constant tensioning of the waveguide may also be used.
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公开(公告)号：US20190157733A1
公开(公告)日：2019-05-23
申请号：US16237397
申请日：2018-12-31
Applicant: Etegent Technologies LTD.
Inventor： Christopher G. Larsen , Oleg Lobkis , Richard A. Roth , Stuart J. Shelley , Conor Coyan , Jason Feldman , Ann El Demery , Mackenzie Shelley
IPC: H01P3/10 , H01P11/00 , H01L41/257 , H01P3/04 , H01Q13/02
Abstract: A broadband waveguide comprising at least one filament configured to transmit a signal therethrough. The broadband waveguide may include one or more reflection suppression techniques including a damping material coupled to at least a portion of the at least one filament and/or at least one reflection point configured thereon. The waveguide may further including a cladding material coupled to the at least one filament. The at least one filament may be coupled to a securing element configured to couple to a surface. The at least one filament may be coupled to a sensor configured to sense the transmitted signal.
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公开(公告)号：US20170030871A1
公开(公告)日：2017-02-02
申请号：US15302836
申请日：2015-04-09
Applicant: Etegent Technologies, Ltd.
Inventor： Oleg Lobkis , Richard A. Roth , Christopher G. Larsen , Stuart J. Shelley
CPC classification number: G01N29/326 , F01D17/02 , F01D17/085 , F05D2220/32 , G01H11/00 , G01L1/10 , G01L1/106 , G01L11/06 , G01N29/07 , G01N29/12 , G01N29/2462 , G01N2291/02827 , G01N2291/02872 , G01N2291/02881 , G01N2291/0421 , G01N2291/0426 , G01N2291/0427 , G01P15/097
Abstract: An environmental condition may be measured with a sensor (10) including a wire (20) having an ultrasonic signal transmission characteristic that varies in response to the environmental condition by sensing ultrasonic energy propagated through the wire using multiple types of propagation, and separating an effect of temperature on the wire from an effect of strain on the wire using the sensed ultrasonic energy propagated through the wire using the multiple types of propagation. A positive feedback loop may be used to excite the wire such that strain in the wire is based upon a sensed resonant frequency, while a square wave with a controlled duty cycle may be used to excite the wire at multiple excitation frequencies. A phase matched cone (200, 210) may be used to couple ultrasonic energy between a waveguide wire (202, 212) and a transducer (204, 214).
Abstract translation: 可以使用包括具有响应于环境条件而变化的超声信号传输特性的导线（20）的传感器（10）来测量环境条件，通过使用多种传播方式感测通过导线传播的超声能量，并且分离效果 使用使用多种类型的传播通过导线传播的感测到的超声能量，从线上的应变对线的温度的影响。 可以使用正反馈回路来激励线，使得线中的应变基于感测到的谐振频率，而具有受控占空比的方波可以用于以多个激励频率激励线。 相位匹配锥体（200,210）可用于在波导线（202,212）和换能器（204,214）之间耦合超声波能量。
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