公开(公告)号：WO2009088307A1

公开(公告)日：2009-07-16

申请号：PCT/NO2009/000014

申请日：2009-01-09

Applicant: ANGELSEN, Bjørn A.J. ,  HANSEN, Rune ,  MÅSØY, Svein-Erik ,  JOHANSEN, Tonni F. ,  NÄSHOLM, Sven Peter

Inventor： ANGELSEN, Bjørn A.J. ,  HANSEN, Rune ,  MÅSØY, Svein-Erik ,  JOHANSEN, Tonni F. ,  NÄSHOLM, Sven Peter

IPC: B06B1/06 ,  B06B1/02

CPC classification number: B06B1/064 ,  A61B8/4483 ,  B06B1/0292 ,  G01S7/52022

Abstract: Acoustic probes that transmits/receives acoustic pulses with frequencies both in a high frequency (HF), a and a selectable amount of lower frequency (LF1, LF2,..., LFn,...) bands, where the radiation surfaces of at least two of the multiple frequency bands have a common region. Several solutions for transmission (and reception) of HF, LF1, LF2,.... pulses and signals through the common radiation surface are given. The arrays and elements can be of a general type, for example annular arrays, phased or switched arrays, linear arrays with division in both azimuth and elevation direction, like a 1.5D, a 1.75D and a full 2D array, curved arrays, etc. The element division, array type, and array aperture sizes for the different bands can also be different. Electronic substrate layers with integrated electronic that connects to array elements can be stacked within the probe.

Abstract translation: 用于以高频（HF），低频（LF1，LF2，...，LFn，...）频带的频率发送/接收声学脉冲的声学探针，其中辐射表面 多个频带中的至少两个具有公共区域。 给出了通过公共辐射表面传输（和接收）HF，LF1，LF2，....脉冲和信号的几种解决方案。 阵列和元件可以是一般的类型，例如环形阵列，相控阵或切换阵列，在方位角和仰角方向上划分的线性阵列，如1.5D，1.75D和全2D阵列，曲线阵列等 不同频带的元素分割，阵列类型和阵列孔径大小也可以不同。 具有集成电子的连接到阵列元件的电子衬底层可以堆叠在探针内。

公开(公告)号：WO2009088306A3

公开(公告)日：2009-07-16

申请号：PCT/NO2009/000013

申请日：2009-01-09

Applicant: ANGELSEN, Bjørn A.J. ,  HANSEN, Rune ,  JOHANSEN, Tonni F. ,  MÅSØY, Svein-Erik ,  NÄSHOLM, Sven, Peter ,  TANGEN, Thor, Andreas

Inventor： ANGELSEN, Bjørn A.J. ,  HANSEN, Rune ,  JOHANSEN, Tonni F. ,  MÅSØY, Svein-Erik ,  NÄSHOLM, Sven, Peter ,  TANGEN, Thor, Andreas

IPC: G01S7/52 ,  G01S15/89

Abstract: Methods and instruments for suppression of multiple scattering noise and extraction of nonlinear scattering components with measurement or imaging of a region of an object with elastic waves, where at least two elastic wave pulse complexes are transmitted towards said region where said pulse complexes are composed of a high frequency (HF) and a low frequency (LF) pulse with the same or overlapping beam directions and where the HF pulse is so close to the LF pulse that it observes the modification of the object by the LF pulse at least for a part of the image depth. The frequency and/or amplitude and/or phase of said LF pulse relative to said HF pulse varies for each transmitted pulse complex in order to nonlinearly manipulate the object elasticity observed by the HF pulse along at least parts of its propagation, and where received HF signals are picked up by transducers from one or both of scattered and transmitted components of the transmitted HF pulses. Said received HF signals are processed to form measurement or image signals for display, and where in the process of forming said measurement or image signals said received HF signals are one or both of delay corrected with correction delay in the fast time (depth-time), and pulse distortion corrected in the fast time, and combined in slow time to form noise suppressed HF signals or nonlinear scattering HF signals that are used for further processing to form measurement or image signals. The methods are applicable to elastic waves where the material elasticity is nonlinear in relation to the material deformation.

公开(公告)号：WO02054827A3

公开(公告)日：2003-12-24

申请号：PCT/NO0200005

申请日：2002-01-07

Applicant: ANGELSEN BJOERN A J ,  JOHANSEN TONNI F

Inventor： ANGELSEN BJOERN A J ,  JOHANSEN TONNI F

IPC: G01N29/24 ,  A61B8/00 ,  B06B1/06 ,  G10K11/02 ,  H04R1/00 ,  H04R17/00

CPC classification number: B06B1/0614 ,  G10K11/02 ,  H04R17/00

Abstract: Ultrasound bulk wave transducers and bulk wave transducer arrays for wide band or multi frequency band operation, in which the bulk wave is radiated from a front surface and the transducer is mounted on a backing material with sufficiently high absorption that reflected waves in the backing material can be neglected. The transducer is formed of layers that include a high impedance section comprised of at least one piezoelectric layer covered with electrodes to form an electric port, and at least one additional elastic layer, with all of the layers of the high impedance section having substantially the same characteristic impedance to yield negligible reflection between the layers. The transducer further includes a load matching section comprised of a set of eleastic layers for impedance matching between the high impedance section and the load material and, optionally, impedance matching layers between the high impedance section and the backing material for shaping the transducer frequency response. For multiband operation, the high impedance section includes multiple piezoelectric layers covered with electrodes to form multiple electric ports that can further be combined by electric parallel, anti-parallel, serial, or anti-serial galvanic coupling to form electric ports with selected frequency transfer functions. Each electric port may be connected to separate electronic transceiver systems to obtain, through selection of drive signals on individual ports, selectable electric parallel, anti-parallel, serial, or anti-serial coupling of the ports in transmit mode, enabling transmission of ultrasound pulses with multi-band frequency components. In receive mode, signals from the individual electric ports can be combined after isolation amplifiers in a filter-combination unit to obtain composite electric ports with extreme wide-band transfer functions and multi-band transfer functions covering a range from a 1st to a 4th harmonic band.

Abstract translation: 用于宽带或多频带操作的超声体波换能器和体波换能器阵列，其中体波从前表面辐射并且换能器安装在具有足够高吸收的背衬材料上，背衬材料中的反射波可以 被忽视 换能器由包括由至少一个被电极覆盖以形成电气端口的压电层组成的高阻抗部分的层形成，以及至少一个额外的弹性层，其中高阻抗部分的所有层具有基本相同的 特征阻抗在层之间产生可忽略的反射。 换能器还包括负载匹配部分，其包括用于高阻抗部分和负载材料之间的阻抗匹配的一组层，以及可选地，高阻抗部分和背衬材料之间的阻抗匹配层，用于对换能器频率响应进行整形。 对于多频段操作，高阻抗部分包括覆盖有电极的多个压电层，以形成多个电端口，其可以通过电并联，反并联，串联或反串联电耦合进一步组合以形成具有所选频率传递函数的电端口 。 每个电气端口可以连接到单独的电子收发器系统，以通过在各个端口上选择驱动信号来获得端口在发射模式下的可选择的电并联，反并联，串联或反串行耦合，从而能够传输超声脉冲 具有多频段频率分量。 在接收模式下，来自各个电气端口的信号可以在滤波器组合单元中的隔离放大器之后组合，以获得具有极宽带传输函数的复合电端口和覆盖从1到4谐波的范围的多频带传输函数 带。

公开(公告)号：WO2009088306A2

公开(公告)日：2009-07-16

申请号：PCT/NO2009000013

申请日：2009-01-09

Applicant: ANGELSEN BJOERN A J ,  HANSEN RUNE ,  JOHANSEN TONNI F ,  MAASOEY SVEIN-ERIK ,  NAESHOLM SVEN PETER ,  TANGEN THOR ANDREAS

Inventor： ANGELSEN BJOERN A J ,  HANSEN RUNE ,  JOHANSEN TONNI F ,  MAASOEY SVEIN-ERIK ,  NAESHOLM SVEN PETER ,  TANGEN THOR ANDREAS

IPC: G01S7/52 ,  G01S15/89

CPC classification number: G01S15/8952 ,  A61B8/08 ,  A61B8/485 ,  G01S7/52022 ,  G01S7/52038 ,  G01S7/52049 ,  G01S7/52077 ,  G01S7/52095 ,  G01S15/8929

Abstract: Methods and instruments for suppression of multiple scattering noise and extraction of nonlinear scattering components with measurement or imaging of a region of an object with elastic waves, where at least two elastic wave pulse complexes are transmitted towards said region where said pulse complexes are composed of a high frequency (HF) and a low frequency (LF) pulse with the same or overlapping beam directions and where the HF pulse is so close to the LF pulse that it observes the modification of the object by the LF pulse at least for a part of the image depth. The frequency and/or amplitude and/or phase of said LF pulse relative to said HF pulse varies for each transmitted pulse complex in order to nonlinearly manipulate the object elasticity observed by the HF pulse along at least parts of its propagation, and where received HF signals are picked up by transducers from one or both of scattered and transmitted components of the transmitted HF pulses. Said received HF signals are processed to form measurement or image signals for display, and where in the process of forming said measurement or image signals said received HF signals are one or both of delay corrected with correction delay in the fast time (depth-time), and pulse distortion corrected in the fast time, and combined in slow time to form noise suppressed HF signals or nonlinear scattering HF signals that are used for further processing to form measurement or image signals. The methods are applicable to elastic waves where the material elasticity is nonlinear in relation to the material deformation.

Abstract translation: 通过对具有弹性波的物体的区域的测量或成像来抑制多重散射噪声和提取非线性散射分量的方法和仪器，其中至少两个弹性波脉冲复合体朝向所述脉冲复合体由 具有相同或重叠波束方向的高频（HF）和低频（LF）脉冲，并且其中HF脉冲与LF脉冲非常接近以至于它观察到由LF脉冲对物体的修改，至少对于部分 图像深度。 所述LF脉冲相对于所述HF脉冲的频率和/或幅度和/或相位对于每个发射脉冲复合体而变化，以便非线性地操纵HF脉冲沿其至少部分传播所观察到的物体弹性，并且其中接收的HF 信号由传感器从发射的HF脉冲的散射和发射分量中的一个或两个拾取。 所述接收的HF信号被处理以形成用于显示的测量或图像信号，并且在形成所述测量或图像信号的过程中，所述接收到的HF信号是在快速时间（深度 - 时间）内利用校正延迟进行延迟校正之一或两者， 并在快速时间内校正脉冲失真，并在慢时间内组合以形成噪声抑制的HF信号或用于进一步处理以形成测量或图像信号的非线性散射HF信号。 这些方法适用于材料弹性相对于材料变形非线性的弹性波。

公开(公告)号：WO2007086749A1

公开(公告)日：2007-08-02

申请号：PCT/NO2006/000036

申请日：2006-01-26

Applicant: TERARECON INC. ,  NÆSHOLM, Peter ,  ANGELSEN, Bjørn A.J. ,  JOHANSEN, Tonni, F. ,  HANSEN, Rune

Inventor： ANGELSEN, Bjørn A.J. ,  JOHANSEN, Tonni, F. ,  HANSEN, Rune

IPC: B06B1/02

CPC classification number: B06B1/0292

Abstract: An ultrasound probe for radiating an ultrasound beam, and with an outer dimension constraint of the probe, where - the probe includes an ultrasound array of elements with radiating front faces arranged at least in one direction close to normal to the ultrasound beam direction, - the array radiating surface has a defined center or central region and said array elements are divided into at least two groups of array elements with a central group of elements in the central region of said array radiating surface, and where - the radiating surface of each said group of elements is retracted from the radiating surfaces of groups of elements closer to said center or center region, so that the total aperture of said array can be large within the outer dimension constraint of the probe .

Abstract translation: 一种用于辐射超声波束并具有探针的外部尺寸约束的超声波探头，其中探针包括具有至少沿与超声波束方向正交的一个方向排列的辐射正面的元件的超声阵列， - 阵列辐射表面具有限定的中心或中心区域，并且所述阵列元件在所述阵列辐射表面的中心区域中被分成至少两组阵列元件和中心元件组，并且其中 - 每个所述组的辐射表面 的元件从更接近所述中心或中心区域的元件组的辐射表面缩回，使得在探针的外部尺寸约束内，所述阵列的总孔径可能很大。

公开(公告)号：WO2007013814A3

公开(公告)日：2007-07-26

申请号：PCT/NO2006000285

申请日：2006-07-26

Applicant: ANGELSEN BJOERN A J ,  JOHANSEN TONNI F ,  HANSEN RUNE ,  MAASOEY SVEIN-ERIK ,  NAESHOLM PETER

Inventor： ANGELSEN BJOERN A J ,  JOHANSEN TONNI F ,  HANSEN RUNE ,  MAASOEY SVEIN-ERIK ,  NAESHOLM PETER

IPC: B06B1/06

CPC classification number: B06B1/064 ,  G01S7/52022 ,  G01S15/8915 ,  G01S15/8952

Abstract: Ultrasound probes that transmits/receives ultrasound pulses with frequencies both in a low frequency (LF) and a high frequency (HF) band, where the radiation surfaces of said HF and LF bands at least have a common region. Several solutions for transmission (and reception) of LF and HF pulses through the same radiation surface are given. The arrays and elements can be of a general type, for example linear phased or switched arrays, or annular arrays or elements with division in both azimuth and elevation direction, like a 1.5D, a 1.75D and a full 2D array. The LF and HF element division and array apertures can also be different.

Abstract translation: 用于发送/接收具有低频（LF）和高频（HF）频带的频率的超声波脉冲的超声波探头，其中所述HF和LF频带的辐射表面至少具有公共区域。 给出了通过相同辐射表面传输（和接收）LF和HF脉冲的几种解决方案。 阵列和元件可以是一般的类型，例如线性相位或开关阵列，或者在方位角和高度方向上分割的环形阵列或元件，如1.5D，1.75D和全2D阵列。 LF和HF元件分割和阵列孔径也可以不同。

公开(公告)号：WO2007021194A1

公开(公告)日：2007-02-22

申请号：PCT/NO2005/000295

申请日：2005-08-17

Applicant: ANGELSEN, Bjørn A.J. ,  JOHANSEN, Tonni, F.

Inventor： ANGELSEN, Bjørn A.J. ,  JOHANSEN, Tonni, F.

IPC: G01S7/52 ,  G01S15/89

CPC classification number: G01S15/8927 ,  G01S7/5205 ,  G01S15/8909

Abstract: The invention presents methods and instrumentation for estimation of frequency dependent acoustic scatterer parameters in an object with elimination of the influence of the accumulative absorption in the object on these scatterers.

Abstract translation: 本发明提出了一种用于估计物体中频率依赖声散射体参数的方法和仪器，消除了对象中累积吸收对这些散射体的影响。

公开(公告)号：WO2007013814A2

公开(公告)日：2007-02-01

申请号：PCT/NO2006/000285

申请日：2006-07-26

Applicant: ANGELSEN, Bjørn, A. J. ,  JOHANSEN, Tonni, F. ,  HANSEN, Rune ,  MAASOEY, Svein-Erik ,  NÄSHOLM, Peter

Inventor： ANGELSEN, Bjørn, A. J. ,  JOHANSEN, Tonni, F. ,  HANSEN, Rune ,  MAASOEY, Svein-Erik ,  NÄSHOLM, Peter

CPC classification number: B06B1/064 ,  G01S7/52022 ,  G01S15/8915 ,  G01S15/8952

Abstract: Ultrasound probes that transmits/receives ultrasound pulses with frequencies both in a low frequency (LF) and a high frequency (HF) band, where the radiation surfaces of said HF and LF bands at least have a common region. Several solutions for transmission (and reception) of LF and HF pulses through the same radiation surface are given. The arrays and elements can be of a general type, for example linear phased or switched arrays, or annular arrays or elements with division in both azimuth and elevation direction, like a 1.5D, a 1.75D and a full 2D array. The LF and HF element division and array apertures can also be different.

Abstract translation: 发射/接收具有低频（LF）和高频（HF）频带两者的频率的超声波脉冲的超声波探头，其中所述HF和LF频带的辐射表面至少具有共同的 地区。 给出了通过相同辐射表面传输（和接收）LF和HF脉冲的几种解决方案。 阵列和元件可以是一般类型，例如线性相控阵或切换阵列，或环形阵列或在方位角和仰角方向上均分开的元件，如1.5D，1.75D和全2D阵列。 LF和HF元件分区和阵列孔径也可以不同。

公开(公告)号：WO2004007098A1

公开(公告)日：2004-01-22

申请号：PCT/NO2002/000263

申请日：2002-07-15

Applicant: EAGLE ULTRASOUND AS ,  ANGELSEN, Bjørn, A., J. ,  JOHANSEN, Tonni, F. ,  ØSTGÅRD, Jarle

Inventor： ANGELSEN, Bjørn, A., J. ,  JOHANSEN, Tonni, F. ,  ØSTGÅRD, Jarle

IPC: B06B1/06

CPC classification number: G01S15/8956 ,  B06B1/064

Abstract: A design and a manufacturing method of ultrasound transducers based on films of ferro-electric ceramic material is presented, the transducers being particularly useful for operating at frequencies above 10 MHz. The designs also involve acoustic load matching layers that provides particularly wide bandwidth of the transducers, and also multiple electric port transducers using multiple piezoelectric layers, for multi-band operation of the transducers over an even wider band of frequencies that covers ü 4 harmonics of a fundamental band. The design and method is particularly directed to the use of a load matched non-piezoelectric layer, adjacent to one of the electrodes, for modulation of the transducer frequency and as a contamination protection layer during the sintering process.

Abstract translation: 提出了一种基于铁电陶瓷材料薄膜的超声换能器的设计和制造方法，该换能器对于在10MHz以上的频率下工作特别有用。 这些设计还涉及提供换能器特别宽的带宽的声学负载匹配层，以及使用多个压电层的多个电气端口换能器，用于在更宽的频带上的多频带操作换能器，覆盖ü的4个谐波 基本乐队。 该设计和方法特别涉及在烧结过程中使用与电极之一相邻的负载匹配非压电层来调制换能器频率和作为污染保护层。

公开(公告)号：WO02054379A3

公开(公告)日：2002-10-10

申请号：PCT/NO0200006

申请日：2002-01-07

Applicant: ANGELSEN BJOERN A J ,  JOHANSEN TONNI F

Inventor： ANGELSEN BJOERN A J ,  JOHANSEN TONNI F

IPC: H04R17/00 ,  B06B1/06 ,  G10K1/00 ,  G10K11/30 ,  A61B8/00 ,  A61B8/12 ,  G01S15/89 ,  G10K11/34

CPC classification number: B06B1/0625

Abstract: An annular ultrasound bulk wave transducer array for electronic depth steering of symmetric focus from a near focus F>n f k groups with different fixed prefocusing. The central group participates in beam forming from F>n f n1<>F>n f nk<>F>n,k-1 f k nk f n n f nk

Abstract translation: 用于从近焦点F> n <对远焦点F> f <的对称聚焦的电子深度转向的环形超声波体波变换器阵列包括被分成具有不同固定预聚焦的k组的元件。 中心组从F> n f ，从F> n <至F> f <，下一个外组中参与波束形成，并且从波束形成中的第k个外部组 F> nk <> F> n，k-1 <至F> f <。 在F> k nk <和F> f <之间选择第k组的固定焦点。 以这种方式，靠近F> n <的波束形成仅由中心组执行。 通过将焦点向外转向F> n <，聚焦直径增加，并且在焦距超过极限的深度处，下一个外部元件组包含在波束形成中。 当焦点进一步转向F> f <时，孔径面积的这种增加减小了焦距随后续直径的增加。 以相同的方式，第k组元素被包括在比F> nk更深的转向焦点的波束形成中，呈现出增长的孔径，其使得能够以较低的元件数保持直径低于极限，并避免不切实际的小宽度 元素。 这些元件还可以在角度方向上细分，允许进行相位差校正。