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公开(公告)号：US06969943B2
公开(公告)日：2005-11-29
申请号：US10475426
申请日：2003-01-28
申请人： Kazuhiko Hashimoto , Takashi Hashida , Masaaki Suzuki , Masahiko Hashimoto , Hidetomo Nagahara , Seigo Shiraishi , Norihisa Takahara
发明人： Kazuhiko Hashimoto , Takashi Hashida , Masaaki Suzuki , Masahiko Hashimoto , Hidetomo Nagahara , Seigo Shiraishi , Norihisa Takahara
摘要： An acoustic matching layer according to the present invention includes a powder of a dry gel. The dry gel preferably has a density of 500 kg/m3 or less and an average pore diameter of 100 nm or less. By using the dry gel powder, a variation in the property of the acoustic matching layer can be reduced.
摘要翻译： 根据本发明的声匹配层包括干凝胶粉末。 干凝胶的密度优选为500kg / m 3以下，平均孔径为100nm以下。 通过使用干凝胶粉末，可以降低声匹配层的性质的变化。
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2.发明授权Acoustic matching member, ultrasound transducer, ultrasonic flowmeter and method for manufacturing the same 有权声匹配构件，超声波换能器，超声波流量计及其制造方法公开(公告)号：US06788620B2
公开(公告)日：2004-09-07
申请号：US10434516
申请日：2003-05-07
申请人： Seigo Shiraishi , Norihisa Takahara , Masaaki Suzuki , Kazuhiko Hashimoto , Takashi Hashida , Hidetomo Nagahara , Masahiko Hashimoto
发明人： Seigo Shiraishi , Norihisa Takahara , Masaaki Suzuki , Kazuhiko Hashimoto , Takashi Hashida , Hidetomo Nagahara , Masahiko Hashimoto
IPC分类号： H04R100
CPC分类号： G10K11/02 , Y10T29/42 , Y10T29/49005 , Y10T29/49007 , Y10T29/4913 , Y10T29/49155 , Y10T29/49165
摘要： An acoustic matching member that is incorporated into an ultrasonic transducer for transmitting and receiving ultrasonic waves, includes: at least two layers including a first layer and a second layer that have different acoustic impedance values from each other. The first layer is made of a composite material of a porous member and a filing material supported by void portions of the porous member, the second layer is made of the filling material or the porous member, and the first layer and the second layer are present in this stated order. A piezoelectric member is disposed on a side of the first layer of the acoustic matching member to form an ultrasonic transducer or an ultrasonic flowmeter. The acoustic matching member does not have independent intermediate layers between the layers, so that delamination hardly occurs and the difficulty in the designing associated with the presence of intermediate layers can be avoided.
摘要翻译： 包括在用于发送和接收超声波的超声波换能器中的声匹配构件包括：包括彼此具有不同声阻抗值的第一层和第二层的至少两层。 第一层由多孔构件的复合材料和由多孔构件的空隙部分支撑的填充材料制成，第二层由填充材料或多孔构件制成，并且第一层和第二层存在 按照这个命令。 压电构件设置在声匹配构件的第一层的一侧，以形成超声波换能器或超声波流量计。 声匹配构件在层之间不具有独立的中间层，使得几乎不发生分层，并且可以避免与中间层的存在相关的设计的困难。
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公开(公告)号：US07061163B2
公开(公告)日：2006-06-13
申请号：US10473752
申请日：2003-01-27
申请人： Hidetomo Nagahara , Masahiko Hashimoto , Masaaki Suzuki , Kazuhiko Hashimoto , Takashi Hashida , Seigo Shiraishi , Norihisa Takahara
发明人： Hidetomo Nagahara , Masahiko Hashimoto , Masaaki Suzuki , Kazuhiko Hashimoto , Takashi Hashida , Seigo Shiraishi , Norihisa Takahara
IPC分类号： H01L41/08
摘要： An ultrasonic transducer according to the present invention includes: a piezoelectric body 4 to set up ultrasonic vibrations; an acoustic matching layer 3 made of a material with a density of 50 kg/m3 to 1,000 kg/m3 and an acoustic impedance of 2.5×103 kg/m2/s to 1.0×106 kg/m2/s; a lower acoustic matching layer 9 provided between the piezoelectric body 4 and the acoustic matching layer 3; and a structure supporting member 6 that supports the lower acoustic matching layer 9 and the piezoelectric body 4 thereon and shields the piezoelectric body 4 from a fluid that propagates the ultrasonic vibrations. The ultrasonic transducer includes a protective portion, which contacts with at least a portion of a side surface of the acoustic matching layer 4. This protective portion is defined by a portion of the lower acoustic matching layer 9 and forms an integral part of the lower acoustic matching layer 9.
摘要翻译： 根据本发明的超声波换能器包括：压电体4，用于设置超声波振动; 由密度为50kg / m 3至1,000kg / m 3的材料制成的声匹配层3和2.5×10 3的声阻抗， / SUP> kg / m 2 / s至1.0×10 6 kg / m 2 / s; 设置在压电体4和声匹配层3之间的下声匹配层9; 以及在其上支撑下声匹配层9和压电体4的结构支撑构件6，其将压电体4与传播超声波振动的流体进行屏蔽。 超声波换能器包括与声匹配层4的侧表面的至少一部分接触的保护部分。 该保护部分由下声匹配层9的一部分限定，并形成下声匹配层9的整体部分。
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公开(公告)号：US07389569B2
公开(公告)日：2008-06-24
申请号：US10757829
申请日：2004-01-14
申请人： Seigo Shiraishi , Norihisa Takahara , Masaaki Suzuki , Kazuhiko Hashimoto , Takashi Hashida , Hidetomo Nagahara , Masahiko Hashimoto
发明人： Seigo Shiraishi , Norihisa Takahara , Masaaki Suzuki , Kazuhiko Hashimoto , Takashi Hashida , Hidetomo Nagahara , Masahiko Hashimoto
CPC分类号： G10K11/02 , Y10T29/42 , Y10T29/49005 , Y10T29/49007 , Y10T29/4913 , Y10T29/49155 , Y10T29/49165
摘要： A method for manufacturing an acoustic matching member, the acoustic matching member being incorporated into an ultrasonic transducer for transmitting and receiving ultrasonic waves, and including: at least two layers including a first layer and a second layer that have different acoustic impedance values from each other. The method for manufacturing including the steps of: filling voids of a porous member with a fluid filling material, and solidifying both the fluid filling material inside the voids and the surplus fluid filling material at the same time. The acoustic matching member does not have independent intermediate layers between the layers, so that delamination hardly occurs and the difficulty in the designing associated with the presence of intermediate layers can be avoided.
摘要翻译： 一种用于制造声匹配构件的方法，所述声匹配构件结合到用于发送和接收超声波的超声波换能器中，并且包括：包括彼此具有不同声阻抗值的第一层和第二层的至少两层 。 制造方法包括以下步骤：用流体填充材料填充多孔构件的空隙，同时使空隙内的流体填充材料和多余的流体填充材料同时固化。 声匹配构件在层之间不具有独立的中间层，使得几乎不发生分层，并且可以避免与中间层的存在相关的设计的困难。
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5.发明授权公开(公告)号：US06989625B2
公开(公告)日：2006-01-24
申请号：US10475373
申请日：2003-01-28
申请人： Masaaki Suzuki , Takashi Hashida , Kazuhiko Hashimoto , Masahiko Hashimoto , Hidetomo Nagahara , Seigo Shiraishi , Norihisa Takahara
发明人： Masaaki Suzuki , Takashi Hashida , Kazuhiko Hashimoto , Masahiko Hashimoto , Hidetomo Nagahara , Seigo Shiraishi , Norihisa Takahara
IPC分类号： H01L41/08
摘要： An acoustic matching layer 1 according to the present invention includes a first acoustic matching layer 2, which has a low density and a low sonic velocity, and a second acoustic matching layer 3, which has a higher density and a higher sonic velocity. The first acoustic matching layer 2, of which the acoustic impedance is matched to that of a medium into an ultrasonic wave is radiated, is provided closer to the medium, while the second acoustic matching layer 3 is provided closer to a piezoelectric layer, thereby increasing the sensitivity of an ultrasonic transducer.
摘要翻译： 根据本发明的声匹配层1包括具有低密度和低声速的第一声匹配层2和具有较高密度和较高声速的第二声匹配层3。 将声阻抗与介质相匹配的第一声匹配层2放射到超声波中被提供得更靠近介质，而第二声匹配层3设置得更靠近压电层，从而增加 超声波传感器的灵敏度。
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6.发明申请Ultrasonic transmitter/receiver, process for producing the same, and ultrasonic flowmeter 审中-公开超声波发射机/接收机，生产过程和超声波流量计公开(公告)号：US20050236932A1
公开(公告)日：2005-10-27
申请号：US10503645
申请日：2003-12-03
摘要： An ultrasonic transducer according to the present invention includes a piezoelectric body 2 for transmitting and receiving an ultrasonic wave and acoustic matching layers 3a and 3b made of a dry gel. The acoustic matching layers 3a and 3b are multiple dry gel layers with mutually different acoustic impedances.
摘要翻译： 根据本发明的超声波换能器包括用于发送和接收超声波的压电体2和由干凝胶制成的声匹配层3a和3b。 声匹配层3a和3b是具有相互不同的声阻抗的多个干凝胶层。
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公开(公告)号：US20050139013A1
公开(公告)日：2005-06-30
申请号：US10510348
申请日：2003-04-28
CPC分类号： G01F1/662 , G01N2291/02836 , G10K11/02 , H04R1/44
摘要： There are provided an ultrasonic transducer that performs transmission and/or reception of an ultrasonic wave and a propagation medium portion that forms a propagation path of the ultrasonic wave. A density ρ1 and an acoustic velocity C1 of the propagation medium portion and a density ρ2 and a sound velocity C2 of a fluid that stuffs a circumjacent space are appropriately set, and a propagation loss of the ultrasonic wave into the fluid is reduced to almost zero by refracting the ultrasonic wave at an appropriate angle.
摘要翻译： 提供了一种执行发送和/或接收超声波的超声波换能器和形成超声波的传播路径的传播介质部分。 传播介质部分的密度r H 1 N 1和声速C 1 N 2和声速C 2 适当地设定填充周围空间的流体的，并且通过以适当的角度折射超声波将超声波传播到流体中的传播损耗几乎为零。
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公开(公告)号：US07162930B2
公开(公告)日：2007-01-16
申请号：US10510348
申请日：2003-04-28
IPC分类号： G01F1/66
CPC分类号： G01F1/662 , G01N2291/02836 , G10K11/02 , H04R1/44
摘要： There are provided an ultrasonic transducer that performs transmission and/or reception of an ultrasonic wave, and a propagation medium portion that forms a propagation path of the ultrasonic wave. A density and an acoustic velocity of the propagation medium portion, and a density and a sound velocity of a fluid that fills a circumjacent space are appropriately set, and a propagation loss of the ultrasonic wave into the fluid is reduced to almost zero by refracting the ultrasonic wave at an appropriate angle.
摘要翻译： 提供了执行超声波的发送和/或接收的超声波换能器以及形成超声波的传播路径的传播介质部。 适当地设定传播介质部分的密度和声速，以及填充周围空间的流体的密度和声速，并且将超声波传播到流体中的传播损耗通过折射 超声波在适当的角度。
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9.发明授权Ultrasonic transducer, method for manufacturing ultrasonic transducer, and ultrasonic flowmeter 有权超声波换能器，超声波换能器制造方法，超声波流量计公开(公告)号：US07087264B2
公开(公告)日：2006-08-08
申请号：US10836240
申请日：2004-05-03
CPC分类号： G01F1/662 , G10K11/02 , Y10T29/42 , Y10T29/49007
摘要： It is an object of the present invention to provide an ultrasonic transducer, which is so configured as to reduce the variations in characteristics, thereby to enable the stabilization of the precision, as well as to enable the improvement of the durability, and the like, a method for manufacturing the ultrasonic transducer, and an ultrasonic flowmeter. In order to attain this object, in accordance with the present invention, the ultrasonic transducer is so configured as to include a piezoelectric element and an acoustic matching layer, wherein the acoustic matching layer is made of a dry gel of an inorganic oxide or an organic polymer, and a solid skeletal part of the dry gel has been rendered hydrophobic. With this configuration, it is possible to obtain the ultrasonic transducer having an acoustic matching layer 3 which is very lightweight and has a small acoustic impedance due to the solid skeletal part of the dry gel which has been rendered hydrophobic. Further, it is also possible to obtain the ultrasonic transducer which shows a narrow range of characteristic variations, and is stable due to the high homogeneity of the dry gel.
摘要翻译： 本发明的目的是提供一种超声波换能器，其被配置为减少特性的变化，从而能够稳定精度，并且能够提高耐久性等， 超声波换能器的制造方法以及超声波流量计。 为了实现该目的，根据本发明，超声波换能器被构造为包括压电元件和声匹配层，其中声匹配层由无机氧化物或有机物的干凝胶制成 聚合物和干凝胶的固体骨架部分已经变得疏水。 利用这种构造，可以获得具有非常轻重的声匹配层3的超声波换能器，并且由于干凝胶的固体骨架部分而具有疏水性而具有较小的声阻抗。 此外，还可以获得显示窄范围的特征变化的超声波换能器，并且由于干凝胶的高均匀性而是稳定的。
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公开(公告)号：US06776051B2
公开(公告)日：2004-08-17
申请号：US10084249
申请日：2002-02-28
IPC分类号： G01F166
CPC分类号： G01F1/662 , G10K11/02 , Y10T29/42 , Y10T29/49007
摘要： It is an object of the present invention to provide an ultrasonic transducer, which is so configured as to reduce the variations in characteristics, thereby to enable the stabilization of the precision, as well as to enable the improvement of the durability, and the like, a method for manufacturing the ultrasonic transducer, and an ultrasonic flowmeter. In order to attain this object, in accordance with the present invention, the ultrasonic transducer is so configured as to include a piezoelectric element and an acoustic matching layer, wherein the acoustic matching layer is made of a dry gel of an inorganic oxide or an organic polymer, and a solid skeletal part of the dry gel has been rendered hydrophobic. With this configuration, it is possible to obtain the ultrasonic transducer having an acoustic matching layer 3 which is very lightweight and has a small acoustic impedance due to the solid skeletal part of the dry gel which has been rendered hydrophobic. Further, it is also possible to obtain the ultrasonic transducer which shows a narrow range of characteristic variations, and is stable due to the high homogeneity of the dry gel.
摘要翻译： 本发明的目的是提供一种超声波换能器，其被配置为减少特性的变化，从而能够稳定精度，并且能够提高耐久性等， 超声波换能器的制造方法以及超声波流量计。 为了实现该目的，根据本发明，超声波换能器被构造为包括压电元件和声匹配层，其中声匹配层由无机氧化物或有机物的干凝胶制成 聚合物和干凝胶的固体骨架部分已经变得疏水。 利用这种构造，可以获得具有非常轻重的声匹配层3的超声波换能器，并且由于干凝胶的固体骨架部分而具有疏水性而具有较小的声阻抗。 此外，还可以获得显示窄范围的特征变化的超声波换能器，并且由于干凝胶的高均匀性而是稳定的。
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