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    Active waveguide excitation and compensation
    1.
    发明授权
    Active waveguide excitation and compensation 有权

    公开(公告)号：US10852277B2

    公开(公告)日：2020-12-01

    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

    IPC: G01N29/32 ,  G01N29/24 ,  G01L1/10 ,  G01N29/07 ,  G01N29/12 ,  G01L11/06 ,  G01H11/00 ,  F01D17/08 ,  F01D17/02 ,  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).

    Composite active waveguide temperature sensor for harsh environments
    2.
    发明授权
    Composite active waveguide temperature sensor for harsh environments 有权

    公开(公告)号：US10352778B2

    公开(公告)日：2019-07-16

    申请号：US15033383

    申请日：2014-10-31

    Applicant: Etegent Technologies LTD.

    Inventor： Christopher G. Larsen ,  Oleg Lobkis ,  Richard A. Roth ,  Stuart J. Shelley

    IPC: G01K11/22 ,  G01K13/02 ,  F02D35/02 ,  G10K11/24

    Abstract: A composite active waveguide temperature sensor (10) incorporates a first, sensor portion (16) formed of an environment-resistant material such as ceramic coupled through an ultrasonically-transparent bond (20) to a second, waveguide portion (18) formed of an ultrasonically-transmissive material such as a metallic filament wire. By doing so, the sensor portion (16) may be positioned within a harsh environment and subjected to a temperature to be measured, and the waveguide portion (18) may be used to propagate ultrasonic energy to and/or from the sensor portion (16) to a location distal from the harsh environment for measurement of the temperature. The ultrasonically-transparent bond (20) between these portions (16, 18) limits attenuation of and the introduction of reflections and other noise to an ultrasonic signal propagated across the bond (20).

    Broadband Waveguide
    3.
    发明申请
    Broadband Waveguide 审中-公开
    宽带波导

    公开(公告)号：US20160294033A1

    公开(公告)日：2016-10-06

    申请号：US15033350

    申请日：2014-10-31

    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

    CPC classification number: H01P3/10 ,  H01L41/257 ,  H01P3/04 ,  H01P11/001 ,  H01Q13/02

    Abstract: A broadband waveguide comprising at least one filament configured to transmit a signal therethrough. The broad-band 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.

    Abstract translation: 一种宽带波导，包括至少一根被配置成透过信号的灯丝。 宽带波导可以包括一个或多个反射抑制技术，其包括耦合到至少一个灯丝的至少一部分上的阻尼材料和/或在其上配置的至少一个反射点。 波导还可以包括耦合到至少一个细丝的包层材料。 所述至少一个细丝可以联接到被配置为耦合到表面的固定元件。 所述至少一根灯丝可以耦合到被配置为感测所发送的信号的传感器。

    Composite Active Waveguide Temperature Sensor for Harsh Environments
    4.
    发明申请
    Composite Active Waveguide Temperature Sensor for Harsh Environments 审中-公开
    用于恶劣环境的复合有源波导温度传感器

    公开(公告)号：US20160273973A1

    公开(公告)日：2016-09-22

    申请号：US15033383

    申请日：2014-10-31

    Applicant: ETEGENT TECHNOLOGIES LTD

    Inventor： Christopher G. Larsen ,  Oleg Lobkis ,  Richard A. Roth ,  Stuart J. Shelley

    IPC: G01K11/22 ,  G10K11/24 ,  F02D35/02 ,  G01K13/02

    CPC classification number: G01K11/22 ,  F02D35/02 ,  G01K13/02 ,  G01K2013/024 ,  G10K11/24

    Abstract: A composite active waveguide temperature sensor (10) incorporates a first, sensor portion (16) formed of an environment-resistant material such as ceramic coupled through an ultrasonically-transparent bond (20) to a second, waveguide portion (18) formed of an ultrasonically-transmissive material such as a metallic filament wire. By doing so, the sensor portion (16) may be positioned within a harsh environment and subjected to a temperature to be measured, and the waveguide portion (18) may be used to propagate ultrasonic energy to and/or from the sensor portion (16) to a location distal from the harsh environment for measurement of the temperature. The ultrasonically-transparent bond (20) between these portions (16, 18) limits attenuation of and the introduction of reflections and other noise to an ultrasonic signal propagated across the bond (20).

    Abstract translation: 复合有源波导温度传感器（10）包括第一传感器部分（16），该传感器部分（16）由诸如通过超声波透明键合（20）耦合的陶瓷的耐环境材料形成为第二波导部分（18） 超声波透过材料如金属丝线。 通过这样做，传感器部分（16）可以定位在恶劣的环境中并经受待测温度，并且波导部分（18）可用于将超声能量传播到传感器部分（16）和/或从传感器部分 ）到远离恶劣环境的位置以测量温度。 这些部分（16,18）之间的超声波透明键（20）限制了通过键（20）传播的超声波信号的反射和其他噪声的衰减和引入。

    Active Waveguide Excitation and Compensation
    6.
    发明申请
    Active Waveguide Excitation and Compensation 审中-公开
    有源波导激励和补偿

    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

    IPC: G01N29/32 ,  F01D17/08 ,  G01N29/24

    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。

    Active Waveguide Excitation and Compensation
    8.
    发明申请
    Active Waveguide Excitation and Compensation 有权

    公开(公告)号：US20210372971A1

    公开(公告)日：2021-12-02

    申请号：US17107646

    申请日：2020-11-30

    Applicant: Etegent Technologies, Ltd.

    Inventor： Oleg Lobkis ,  Richard A. Roth ,  Christopher G. Larsen ,  Stuart J. Shelley

    IPC: G01N29/32 ,  G01L11/06 ,  G01N29/24 ,  G01H11/00 ,  G01L1/10 ,  G01N29/07 ,  G01N29/12 ,  F01D17/08

    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).

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