专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2021260405A1 METHODS AND INSTRUMENTATION FOR ESTIMATION OF WAVE PROPAGATION AND SCATTERING PARAMETERS 审中-公开
公开(公告)号：WO2021260405A1
公开(公告)日：2021-12-30
申请号：PCT/IB2020/001066
申请日：2020-12-18
申请人： SURF TECHNOLOGY AS
发明人： ANGELSEN, Bjorn, A.J. , KWAM, Johannes , SOLBERG, Stian
IPC分类号： G01S7/52 , A61B8/14 , A61B8/08 , A61B8/4281 , A61B8/429 , A61B8/4444 , A61B8/4483 , A61B8/485 , G01S15/8993 , G01S7/52022 , G01S7/52039 , G01S7/52042 , G01S7/52049 , G01S7/52077 , G01S7/52085
摘要： Estimation and imaging of linear and nonlinear propagation and scattering parameters in a material object where the material parameters for wave propagation and scattering has a nonlinear dependence on the wave field amplitude. The methods transmit at least two pulse complexes composed of co-propagating high frequency (HF) and low frequency (LF) pulses along at least one LF and HF transmit beam axis, where said HF pulse propagates close to the crest or trough of the LF pulse along at least one HF transmit beam, and where one of the amplitude and polarity of the LF pulse varies between at least two transmitted pulse complexes. At least one HF receive beam crosses the HF transmit beam at an angle, to provide at least two HF cross-beam receive signals from at least two transmitted pulse complexes with different LF pulses.

2. 发明申请

WO2018096397A1 MULTI-BAND ULTRASOUND TRANSDUCERS 审中-公开
公开(公告)号：WO2018096397A1
公开(公告)日：2018-05-31
申请号：PCT/IB2017/001548
申请日：2017-11-22
申请人： SURF TECHNOLOGY AS
发明人： ANGELSEN, Bjorn, A.J. , MYHRE, Ola, Finneng
IPC分类号： B06B1/06 , G10K11/02
摘要： A structure of an acoustic transducer array probe for transmission of acoustic waves from a front radiation surface into an acoustic load material, where said acoustic waves can have frequencies in a high frequency (HF) band and further lower frequency (LF1,..., LF n , LF N ) bands with N ≥ 1, arranged in order of decreasing center frequency. The acoustic waves are transmitted from separate high and lower frequency arrays stacked together with matching layers in a thickness dimension into a layered structure, with at least a common radiation surface for said high and lower frequency bands. At least for said common radiation surface at least one lower frequency LFn electro- acoustic structure (n = 1,..., Ν ) comprises a piezoelectric array with an acoustic isolation section to its front face. The acoustic isolation section includes to the front a section composed of a sequence of L ≥ 3 matching layers with interchanging low and high characteristic impedances, where the front layer of said section is one of i) a lower characteristic impedance layer, and ii) a higher characteristic impedance layer, and where at least one lower characteristic impedance layer is made of a homogeneous material.

3. 发明申请

WO2016051274A2 ULTRASOUND TRANSDUCER MATCHING LAYERS AND METHOD OF MANUFACTURING 审中-公开
标题翻译：超声波传感器匹配层及其制造方法
公开(公告)号：WO2016051274A2
公开(公告)日：2016-04-07
申请号：PCT/IB2015/002091
申请日：2015-10-01
申请人： SURF TECHNOLOGY AS
发明人： ANGELSEN, Bjorn, A.J.
CPC分类号： B29C43/003 , B06B1/02 , B06B1/0644 , B29K2103/00 , B29K2995/0005 , B29K2995/0007 , B29K2995/0013 , B29L2031/34 , G10K11/02
摘要： An acoustic matching layer where the thickness is defined by a single layer of defined mono- disperse particles. The layer comprises a polymer base in which mono-disperse particles are embedded. The mono-disperse particles can be coated with a solid material that participates in the definition of the acoustic impedance of the layer. The polymer base can include smaller solid particles that participates in the definition of the acoustic impedance of the layer. The invention also provides a method of manufacturing.
摘要翻译：声匹配层，其中厚度由单层限定的单分散颗粒限定。该层包含嵌入单分散颗粒的聚合物基质。单分散颗粒可以涂覆参与层的声阻抗定义的固体材料。聚合物基底可以包括参与层的声阻抗定义的较小固体颗粒。本发明还提供一种制造方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式