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公开(公告)号：EP4216294A1
公开(公告)日：2023-07-26
申请号：EP22153169.2
申请日：2022-01-25
发明人： PETERS, Laurens Christiaan Johannes Maria , GELINCK, Gerwin Hermanus , VAN NEER, Paul Louis Maria Joseph
IPC分类号： H01L41/193 , H01L41/333
摘要： A piezoelectric device (100) is manufactured using a substrate (20) with a piezoelectric moldable layer (10). A stamp (30) comprises a repeating pattern of unit cells (30u) formed by a grid of interconnected sidewalls (32) separating respective apertures (31). A molding process comprises pushing (F) the stamp (30) into the moldable layer (10). This causes the piezoelectric material (M) to be pushed into the respective apertures (31) and form an array of pillars (11). In the stamp, the fraction of open area (A31), formed by a respective aperture (31), is more than the fraction of solid area (A32), formed by the surrounding sidewalls (32). In the resulting pillar structure the fraction of active area (A11), formed by the pillars (11) is more than the fraction of inactive area (A12) between the pillars (11). The stamp (30) can be adapted to improve structural integrity while using relatively thin sidewalls (32).
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公开(公告)号：EP4384851A1
公开(公告)日：2024-06-19
申请号：EP22754584.5
申请日：2022-08-12
发明人： VAN DER STEEN, Jan-Laurens Pieter Jacobus , PETERS, Laurens Christiaan Johannes Maria , VAN NEER, Paul Louis Maria Joseph , VOLKER, Arno Willem Frederik
CPC分类号： G01S15/8936 , G01S7/5205 , A61B8/4488 , G01N29/262 , G01S15/8977 , A61B8/4209 , A61B8/4455 , A61B8/4477 , A61B8/4483 , A61B8/4494 , G01N29/07 , G01N2291/01120130101 , G01N2291/263820130101 , A61B8/5207
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公开(公告)号：EP4105653A1
公开(公告)日：2022-12-21
申请号：EP21180402.6
申请日：2021-06-18
发明人： VAN DER STEEN, Jan-Laurens Pieter Jacobus , PETERS, Laurens Christiaan Johannes Maria , VAN NEER, Paul Louis Maria Joseph , VOLKER, Arno Willem Frederik
摘要： An acoustic system (100) and method for measuring a curved object (Obj). A flexible sheet (20) is provided with an array of acoustic transducers (10) distributed over a surface (20s) of the sheet (20). The sheet (20) is wrapped at least partially around the object (Obj) such that different transducers (10a, 10b, 10c) acoustically contact the object (Obj) from different sides. The transducers (10) are used to generate and/or measure acoustic waves (W) at variable locations around the object (Obj). Spatial coordinates (X,Y,Z) of the variable locations in three dimensional space are dependent on a deformation of the sheet surface (20s) wrapping around the object (Obj). The spatial coordinates (X,Y,Z) of the transducers (10) are determined, while the sheet (20) is wrapped around the object (Obj), based on a set of travel times (Tab,Tbc,Tac) of the acoustic waves (W) sent through the object (Obj), e.g. between different transducers (10a, 10b).
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公开(公告)号：EP4356121A1
公开(公告)日：2024-04-24
申请号：EP22733236.8
申请日：2022-06-16
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公开(公告)号：EP4134703A1
公开(公告)日：2023-02-15
申请号：EP21191229.0
申请日：2021-08-13
发明人： VAN DER STEEN, Jan-Laurens Pieter Jacobus , PETERS, Laurens Christiaan Johannes Maria , VAN NEER, Paul Louis Maria Joseph , VOLKER, Arno Willem Frederik
摘要： A system and method for acoustically measuring a curved object (Obj). A flexible sheet (20) is provided with an array of acoustic transducers (10). The flexible sheet (20) is wrapped around the curved object (Obj) such that the acoustic transducers (10) acoustically contact the curved object (Obj). The acoustic transducers (10) are used to generate and/or measure acoustic waves (W) at variable locations depending on a shape of the curved object (Obj). Spatial coordinates (X,Y,Z) of the acoustic transducers (10) are determined, while the flexible sheet (20) is wrapped around the curved object (Obj). In particular, the spatial coordinates are determined based on respective subsets of travel times (Ta,Tb,Tc) used to calculate respective wave directions of the acoustic waves (Wa,Wb,Wc) arriving at respective subarrays (10a, 10b, 10c) from a common origin, e.g. scattering element (S) inside the curved object (Obj).
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公开(公告)号：EP4107798A1
公开(公告)日：2022-12-28
申请号：EP21704036.9
申请日：2021-02-04
发明人： PETERS, Laurens Christiaan Johannes Maria , VAN DER STEEN, Jan-Laurens Pieter Jacobus , VERBEEK, Roy Gerardus Franciscus , VAN NEER, Paul Louis Maria Joseph , GELINCK, Gerwin Hermanus
IPC分类号： H01L41/083 , H01L41/277 , B06B1/06
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