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1. 发明授权

US09597709B2 Variable thickness acoustic transducers 有权
公开(公告)号：US09597709B2
公开(公告)日：2017-03-21
申请号：US14225911
申请日：2014-03-26
申请人： Ehsan Khajeh , Roger R. Steinsiek
发明人： Ehsan Khajeh , Roger R. Steinsiek
IPC分类号： B06B1/06
CPC分类号： B06B1/0622 , Y10T29/42
摘要： An embodiment of an acoustic transducer assembly includes: a piezoelectric active element configured to emit acoustic signals, the active element having an emitting surface and a back surface located opposite the emitting surface, at least a portion of the back surface having a shape that forms a curve, the shape configured to cause the active element to have a variable thickness between the emitting surface and the back surface; and a backing material disposed in contact with the backing surface and configured to absorb the acoustic signals, the backing material shaped to conform to the back surface.

2. 发明申请

US20150281848A1 VARIABLE THICKNESS ACOUSTIC TRANSDUCERS 有权
标题翻译：可变厚度声学传感器
公开(公告)号：US20150281848A1
公开(公告)日：2015-10-01
申请号：US14225911
申请日：2014-03-26
申请人： Ehsan Khajeh , Roger R. Steinsiek
发明人： Ehsan Khajeh , Roger R. Steinsiek
IPC分类号： H04R17/00 , H04R31/00
CPC分类号： B06B1/0622 , Y10T29/42
摘要： An embodiment of an acoustic transducer assembly includes: a piezoelectric active element configured to emit acoustic signals, the active element having an emitting surface and a back surface located opposite the emitting surface, at least a portion of the back surface having a shape that forms a curve, the shape configured to cause the active element to have a variable thickness between the emitting surface and the back surface; and a backing material disposed in contact with the backing surface and configured to absorb the acoustic signals, the backing material shaped to conform to the back surface.
摘要翻译：声换能器组件的实施例包括：被配置为发射声信号的压电有源元件，所述有源元件具有发射表面和与所述发射表面相对的后表面，所述后表面的至少一部分具有形成曲线，所述形状被配置为使所述有源元件在所述发射表面和所述背表面之间具有可变的厚度; 以及背衬材料，所述背衬材料设置成与所述背衬表面接触并且被配置为吸收所述声学信号，所述背衬材料成形为符合所述背面。

3. 发明申请

US20160070014A1 GUIDED ACOUSTIC WAVES ISOLATION SYSTEM FOR DOWNHOLE APPLICATIONS 有权
标题翻译：用于井下应用的指导声波隔离系统
公开(公告)号：US20160070014A1
公开(公告)日：2016-03-10
申请号：US14477316
申请日：2014-09-04
申请人： Ehsan Khajeh , Roger R. Steinsiek , Ryan D. Green
发明人： Ehsan Khajeh , Roger R. Steinsiek , Ryan D. Green
IPC分类号： G01V1/30 , G01V1/50
CPC分类号： G01V1/306 , G01V1/50 , G01V1/52 , G01V2210/1299 , G01V2210/1429
摘要： An apparatus for estimating a property of a subsurface material includes a carrier configured to convey an acoustic wave guide though a borehole. The acoustic wave guide includes an acoustic plate configured to guide an acoustic wave along a path of the plate and an acoustic reservoir coupled to the acoustic plate and at least partially surrounding the acoustic plate. The acoustic reservoir has a mass greater than the mass of the acoustic plate and is configured to absorb acoustic wave leakage from the acoustic plate. A first acoustic transducer is coupled to the acoustic plate and configured to transmit an acoustic wave along the path. A second acoustic transducer is coupled to the acoustic plate and configured to receive the acoustic wave that travels along the path. A controller is configured to operate the first acoustic transducer and the second acoustic transducer in order to estimate the property.
摘要翻译：用于估计地下材料的性质的装置包括构造成通过钻孔传送声波引导件的载体。声波引导件包括声学板，其被配置为沿着板的路径引导声波和耦合到声学板并且至少部分地围绕声板的声学容器。声学储存器具有大于声学板的质量的质量，并且被配置为吸收来自声学板的声波泄漏。第一声换能器耦合到声板并且被配置为沿着路径传输声波。第二声换能器耦合到声板并被配置为接收沿着路径行进的声波。控制器被配置为操作第一声换能器和第二声换能器以估计该属性。

4. 发明申请

US20150268367A1 FORMATION MEASUREMENTS USING NONLINEAR GUIDED WAVES 审中-公开
标题翻译：使用非线性引导波的形成测量
公开(公告)号：US20150268367A1
公开(公告)日：2015-09-24
申请号：US14223416
申请日：2014-03-24
申请人： Ehsan Khajeh , Yang Liu
发明人： Ehsan Khajeh , Yang Liu
IPC分类号： G01V1/50
CPC分类号： G01V1/50 , G01V1/46
摘要： An embodiment of a method of estimating a property of an earth formation includes: disposing an acoustic tool in a borehole in an earth formation, the acoustic tool including an acoustic source and at least one acoustic receiver; transmitting acoustic signals into the borehole by the acoustic source, the acoustic signals having at least one linear guided wave mode that propagates along a surface of the borehole; receiving the acoustic signals by at least one receiver; analyzing, by a processor, the acoustic signals to measure non-linear harmonic waves generated by the formation is response to the at least one linear guided wave mode; and estimating a property of the formation based on the measured non-linear harmonic waves.
摘要翻译：估计地球物理性质的方法的实施例包括：将声学工具设置在地层中的钻孔中，所述声学工具包括声源和至少一个声学接收器; 通过声源将声信号传输到钻孔中，声信号具有沿钻孔表面传播的至少一个线性导波模式; 通过至少一个接收器接收声信号; 通过处理器分析用于测量由地层产生的非线性谐波的声信号是对至少一个线性导波模式的响应; 并基于所测量的非线性谐波估计地层的性质。

5. 发明申请

US20220327856A1 Signal Processing for Segmented Thin-Film Acoustic Imaging Systems for Portable Electronic Devices 有权
公开(公告)号：US20220327856A1
公开(公告)日：2022-10-13
申请号：US17709235
申请日：2022-03-30
申请人： Gordon S. Franza , Mohammad Yeke Yazdandoost , Dale Setlak , Marcus C. Yip , Ehsan Khajeh , Aaron S. Tucker , Andrew W. Joyce , Brian M. King , Giovanni Gozzini , Jason S. Griesbach , Henry H. Yang
发明人： Gordon S. Franza , Mohammad Yeke Yazdandoost , Dale Setlak , Marcus C. Yip , Ehsan Khajeh , Aaron S. Tucker , Andrew W. Joyce , Brian M. King , Giovanni Gozzini , Jason S. Griesbach , Henry H. Yang
IPC分类号： G06V40/13 , B06B1/02 , B06B1/06
摘要： An acoustic imaging system coupled to an acoustic medium to define an imaging surface. The acoustic imaging system includes an array of piezoelectric acoustic transducers formed at least in part from a thin-film piezoelectric material, such as PVDF. The array is coupled to the acoustic medium opposite the imaging surface and formed using a thin-film manufacturing process over an application-specific integrated circuit that, in turn, is configured to leverage the array of piezoelectric actuators to generate an image of an object at least partially wetting to the imaging surface.

6. 发明授权

US09389330B2 Formation measurements using flexural modes of guided waves 有权
标题翻译：使用导波弯曲模式的地层测量
公开(公告)号：US09389330B2
公开(公告)日：2016-07-12
申请号：US14230786
申请日：2014-03-31
申请人： Ehsan Khajeh , Yang Liu
发明人： Ehsan Khajeh , Yang Liu
IPC分类号： G01V1/50 , G01V1/44
CPC分类号： G01V1/44 , G01V2210/6242
摘要： An embodiment of a method of estimating a property of an earth formation includes: disposing an acoustic tool in a borehole in an earth formation, the acoustic tool including an acoustic source and an acoustic receiver, the borehole having an axial direction; transmitting an acoustic signal into the borehole by the acoustic source, the acoustic signal having a selected frequency and transmitted at a propagation angle relative to the axial direction, the propagation angle selected to excite a desired guided flexural wave mode that propagates along a surface of the borehole; detecting an received acoustic signal by the acoustic receiver; calculating, by a processor, an incident angle of the received acoustic signal, the incident angle relative to the axial direction; measuring a shift of the propagation angle based on the incident angle; and estimating a property of the formation based on the shift of the propagation angle.
摘要翻译：估计地球物理特性的方法的一个实施例包括：将声学工具设置在地层中的钻孔中，所述声学工具包括声源和声学接收器，所述钻孔具有轴向; 通过声源将声信号传输到钻孔中，声信号具有选定的频率并以相对于轴向方向的传播角度传播，所选择的传播角度用于激发沿着该方向传播的期望的引导弯曲波模式钻孔通过声学接收器检测接收到的声音信号; 由处理器计算接收的声信号的入射角，相对于轴向的入射角; 基于入射角测量传播角度的偏移; 并基于传播角度的偏移来估计地层的性质。

7. 发明授权

US09581708B2 Guided acoustic waves isolation system for downhole applications 有权
标题翻译：引导声波隔离系统用于井下应用
公开(公告)号：US09581708B2
公开(公告)日：2017-02-28
申请号：US14477316
申请日：2014-09-04
申请人： Ehsan Khajeh , Roger R. Steinsiek , Ryan D. Green
发明人： Ehsan Khajeh , Roger R. Steinsiek , Ryan D. Green
IPC分类号： G01V1/30 , G01V1/50
CPC分类号： G01V1/306 , G01V1/50 , G01V1/52 , G01V2210/1299 , G01V2210/1429
摘要： An apparatus for estimating a property of a subsurface material includes a carrier configured to convey an acoustic wave guide though a borehole. The acoustic wave guide includes an acoustic plate configured to guide an acoustic wave along a path of the plate and an acoustic reservoir coupled to the acoustic plate and at least partially surrounding the acoustic plate. The acoustic reservoir has a mass greater than the mass of the acoustic plate and is configured to absorb acoustic wave leakage from the acoustic plate. A first acoustic transducer is coupled to the acoustic plate and configured to transmit an acoustic wave along the path. A second acoustic transducer is coupled to the acoustic plate and configured to receive the acoustic wave that travels along the path. A controller is configured to operate the first acoustic transducer and the second acoustic transducer in order to estimate the property.
摘要翻译：用于估计地下材料的性质的装置包括构造成通过钻孔传送声波引导件的载体。声波引导件包括声学板，其被配置为沿着板的路径引导声波和耦合到声学板并且至少部分地围绕声板的声学容器。声学储存器具有大于声学板的质量的质量，并且被配置为吸收来自声学板的声波泄漏。第一声换能器耦合到声板并且被配置为沿着路径传输声波。第二声换能器耦合到声板并被配置为接收沿着路径行进的声波。控制器被配置为操作第一声换能器和第二声换能器以估计该属性。

8. 发明申请

US20150276960A1 FORMATION MEASUREMENTS USING FLEXURAL MODES OF GUIDED WAVES 有权
标题翻译：使用指导波形的弹性模式形成测量
公开(公告)号：US20150276960A1
公开(公告)日：2015-10-01
申请号：US14230786
申请日：2014-03-31
申请人： Ehsan Khajeh , Yang Liu
发明人： Ehsan Khajeh , Yang Liu
IPC分类号： G01V1/50
CPC分类号： G01V1/44 , G01V2210/6242
摘要： An embodiment of a method of estimating a property of an earth formation includes: disposing an acoustic tool in a borehole in an earth formation, the acoustic tool including an acoustic source and an acoustic receiver, the borehole having an axial direction; transmitting an acoustic signal into the borehole by the acoustic source, the acoustic signal having a selected frequency and transmitted at a propagation angle relative to the axial direction, the propagation angle selected to excite a desired guided flexural wave mode that propagates along a surface of the borehole; detecting an received acoustic signal by the acoustic receiver; calculating, by a processor, an incident angle of the received acoustic signal, the incident angle relative to the axial direction; measuring a shift of the propagation angle based on the incident angle; and estimating a property of the formation based on the shift of the propagation angle.
摘要翻译：估计地球物理特性的方法的实施例包括：将声学工具设置在地层中的钻孔中，所述声学工具包括声源和声学接收器，所述钻孔具有轴向; 通过声源将声信号传输到钻孔中，声信号具有选定的频率并以相对于轴向方向的传播角度传播，所选择的传播角度被激发出沿着该传播角度传播的期望的引导弯曲波模式钻孔通过声学接收器检测接收到的声音信号; 由处理器计算接收的声信号的入射角，相对于轴向的入射角; 基于入射角测量传播角度的偏移; 并且基于传播角度的移动来估计地层的性质。

9. 发明授权

US10094945B2 Formation measurements using nonlinear guided waves 有权
公开(公告)号：US10094945B2
公开(公告)日：2018-10-09
申请号：US14223416
申请日：2014-03-24
申请人： Ehsan Khajeh , Yang Liu
发明人： Ehsan Khajeh , Yang Liu
IPC分类号： G01V1/50 , G01V1/46
摘要： An embodiment of a method of estimating a property of an earth formation includes: disposing an acoustic tool in a borehole in an earth formation, the acoustic tool including an acoustic source and at least one acoustic receiver; transmitting acoustic signals into the borehole by the acoustic source, the acoustic signals having at least one linear guided wave mode that propagates along a surface of the borehole; receiving the acoustic signals by at least one receiver; analyzing, by a processor, the acoustic signals to measure non-linear harmonic waves generated by the formation is response to the at least one linear guided wave mode; and estimating a property of the formation based on the measured non-linear harmonic waves.

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