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：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：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。