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公开(公告)号：US20110074246A1
公开(公告)日：2011-03-31
申请号：US12889457
申请日：2010-09-24
IPC分类号： H01L41/053
CPC分类号： G10K9/122
摘要： An ultrasonic transducer includes a case, a reflective portion, and a piezoelectric body. The case has a substantially cylindrical shape including one closed end in the center axis direction that defines a top. The piezoelectric body is disposed on the inner surface of the top of the case. The reflective portion is arranged to oppose and be spaced apart from the piezoelectric body. The distance between the piezoelectric body and the reflective portion is greater than the maximum displacement of the piezoelectric body and is substantially an odd number multiple of a ¼ wavelength of sound waves or less than or equal to the ¼ wavelength.
摘要翻译： 超声换能器包括壳体，反射部分和压电体。 壳体具有基本上圆柱形的形状，包括限定顶部的中心轴线方向上的一个封闭端。 压电体设置在壳体顶部的内表面上。 反射部分被布置成与压电体相对并间隔开。 压电体和反射部之间的距离大于压电体的最大位移，并且基本上是声波的1/4波长或小于或等于1/4波长的奇数倍。
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公开(公告)号：US20090195123A1
公开(公告)日：2009-08-06
申请号：US12425548
申请日：2009-04-17
申请人： Koji MURATA , Masato KOTANI , Takaaki ASADA , Takayuki SHIMAMOTO , Hiroyuki HIRANO , Mio FURUYA
发明人： Koji MURATA , Masato KOTANI , Takaaki ASADA , Takayuki SHIMAMOTO , Hiroyuki HIRANO , Mio FURUYA
IPC分类号： H01L41/053 , G10K9/122
CPC分类号： G10K9/122 , G01S7/521 , G01S15/931 , G10K9/22
摘要： An ultrasonic sensor includes a cylindrical outer case with a bottom and a piezoelectric element fixed to the inner side of the bottom portion of the outer case. A ring-shaped inner case having a central hole extending in the axial direction in the central portion thereof is disposed inside the sidewall portion of the outer case. A flat or substantially flat portion is provided around the central hole of the inner case, and a viscoelastic filler is arranged so as to extend from the central hole to the flat or substantially flat portion of the inner case. A tabular member is disposed on the flat or substantially flat portion so as to face the flat or substantially flat portion with the filler interposed therebetween. When the inner case vibrates, shear deformation occurs in the filler interposed between the flat or substantially flat portion and the tabular member since the tabular member is not substantially deformed, and the vibration is reduced by the viscoelastic damping effect.
摘要翻译： 超声波传感器包括具有底部的圆柱形外壳和固定到外壳的底部的内侧的压电元件。 具有在其中心部分沿轴向延伸的中心孔的环形内壳设置在外壳的侧壁部分的内侧。 在内壳的中心孔周围设置平坦或基本上平坦的部分，并且粘弹性填料被布置成从中心孔延伸到内壳的平坦或基本上平坦的部分。 板状构件设置在平坦或基本上平坦的部分上，以便面对平坦或基本上平坦的部分，填充物插入其间。 当内壳体振动时，由于平板状构件基本上不变形，插入在平坦部分或基本上平坦的部分之间的填料中产生剪切变形，并且通过粘弹性阻尼效应减小了振动。
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公开(公告)号：US07737609B2
公开(公告)日：2010-06-15
申请号：US12425548
申请日：2009-04-17
申请人： Koji Murata , Masato Kotani , Takaaki Asada , Takayuki Shimamoto , Hiroyuki Hirano , Mio Furuya
发明人： Koji Murata , Masato Kotani , Takaaki Asada , Takayuki Shimamoto , Hiroyuki Hirano , Mio Furuya
CPC分类号： G10K9/122 , G01S7/521 , G01S15/931 , G10K9/22
摘要： An ultrasonic sensor includes a cylindrical outer case with a bottom and a piezoelectric element fixed to the inner side of the bottom portion of the outer case. A ring-shaped inner case having a central hole extending in the axial direction in the central portion thereof is disposed inside the sidewall portion of the outer case. A flat or substantially flat portion is provided around the central hole of the inner case, and a viscoelastic filler is arranged so as to extend from the central hole to the flat or substantially flat portion of the inner case. A tabular member is disposed on the flat or substantially flat portion so as to face the flat or substantially flat portion with the filler interposed therebetween. When the inner case vibrates, shear deformation occurs in the filler interposed between the flat or substantially flat portion and the tabular member since the tabular member is not substantially deformed, and the vibration is reduced by the viscoelastic damping effect.
摘要翻译： 超声波传感器包括具有底部的圆柱形外壳和固定到外壳的底部的内侧的压电元件。 具有在其中心部分沿轴向延伸的中心孔的环形内壳设置在外壳的侧壁部分的内侧。 在内壳的中心孔周围设置平坦或基本上平坦的部分，并且粘弹性填料被布置成从中心孔延伸到内壳的平坦或基本上平坦的部分。 板状构件设置在平坦或基本上平坦的部分上，以便面对平坦或基本上平坦的部分，填充物插入其间。 当内壳体振动时，由于平板状构件基本上不变形，插入在平坦部分或基本上平坦的部分之间的填料中产生剪切变形，并且通过粘弹性阻尼效应减小了振动。
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公开(公告)号：US07548014B2
公开(公告)日：2009-06-16
申请号：US12103912
申请日：2008-04-16
申请人： Takaaki Asada , Takayuki Shimamoto , Koji Murata , Mio Furuya
发明人： Takaaki Asada , Takayuki Shimamoto , Koji Murata , Mio Furuya
IPC分类号： H01L41/08
CPC分类号： G10K9/122 , G01S7/521 , G01S15/931 , G01S2015/938 , G10K9/22
摘要： An ultrasonic transducer includes a cylindrical cap member having a bottom. A piezoelectric element is bonded to the inner side of a bottom portion of the cap member using a conductive adhesive or other suitable adhesive. An inner frame made of a material having an acoustic impedance greater than that of the cap member is fitted into the cap member so as to be in contact with a side portion, including the end portion, of the cap member. Through-holes are provided in the side portion of the inner frame. Lead wires are connected to the piezoelectric element and the inner frame, respectively. A sound absorber and a damper are inserted into the inner frame. The damper is in direct contact with the side portion of the cap member via the through-holes of the inner frame.
摘要翻译： 超声波换能器包括具有底部的圆柱形盖构件。 使用导电粘合剂或其它合适的粘合剂将压电元件结合到盖构件的底部的内侧。 由具有大于盖构件的声阻抗的材料制成的内框架被装配到盖构件中以便与帽构件的包括端部的侧部接触。 在内框架的侧部设有通孔。 引线分别连接到压电元件和内框架。 吸音器和阻尼器插入到内框架中。 阻尼器经由内框架的通孔与盖构件的侧部直接接触。
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公开(公告)号：US20080218030A1
公开(公告)日：2008-09-11
申请号：US12103912
申请日：2008-04-16
申请人： Takaaki ASADA , Takayuki SHIMAMOTO , Koji MURATA , Mio FURUYA
发明人： Takaaki ASADA , Takayuki SHIMAMOTO , Koji MURATA , Mio FURUYA
IPC分类号： H01L41/00
CPC分类号： G10K9/122 , G01S7/521 , G01S15/931 , G01S2015/938 , G10K9/22
摘要： An ultrasonic transducer includes a cylindrical cap member having a bottom. A piezoelectric element is bonded to the inner side of a bottom portion of the cap member using a conductive adhesive or other suitable adhesive. An inner frame made of a material having an acoustic impedance greater than that of the cap member is fitted into the cap member so as to be in contact with a side portion, including the end portion, of the cap member. Through-holes are provided in the side portion of the inner frame. Lead wires are connected to the piezoelectric element and the inner frame, respectively. A sound absorber and a damper are inserted into the inner frame. The damper is in direct contact with the side portion of the cap member via the through-holes of the inner frame.
摘要翻译： 超声波换能器包括具有底部的圆柱形盖构件。 使用导电粘合剂或其它合适的粘合剂将压电元件结合到盖构件的底部的内侧。 由具有大于盖构件的声阻抗的材料制成的内框架被装配到盖构件中以便与帽构件的包括端部的侧部接触。 在内框架的侧部设有通孔。 引线分别连接到压电元件和内框架。 吸音器和阻尼器插入到内框架中。 阻尼器经由内框架的通孔与盖构件的侧部直接接触。
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公开(公告)号：US08354775B2
公开(公告)日：2013-01-15
申请号：US12889457
申请日：2010-09-24
IPC分类号： H01L41/08
CPC分类号： G10K9/122
摘要： An ultrasonic transducer includes a case, a reflective portion, and a piezoelectric body. The case has a substantially cylindrical shape including one closed end in the center axis direction that defines a top. The piezoelectric body is disposed on the inner surface of the top of the case. The reflective portion is arranged to oppose and be spaced apart from the piezoelectric body. The distance between the piezoelectric body and the reflective portion is greater than the maximum displacement of the piezoelectric body and is substantially an odd number multiple of a ¼ wavelength of sound waves or less than or equal to the ¼ wavelength.
摘要翻译： 超声换能器包括壳体，反射部分和压电体。 壳体具有基本上圆柱形的形状，包括限定顶部的中心轴线方向上的一个封闭端。 压电体设置在壳体顶部的内表面上。 反射部分被布置成与压电体相对并间隔开。 压电体和反射部之间的距离大于压电体的最大位移，并且基本上是声波的1/4波长或小于或等于1/4波长的奇数倍。
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公开(公告)号：US06634230B2
公开(公告)日：2003-10-21
申请号：US10124418
申请日：2002-04-18
申请人： Isao Toyoshima , Akira Mori , Nobuyuki Ishitoko , Takayuki Shimamoto , Akira Kumada , Iku Nagai
发明人： Isao Toyoshima , Akira Mori , Nobuyuki Ishitoko , Takayuki Shimamoto , Akira Kumada , Iku Nagai
IPC分类号： G01C1900
CPC分类号： G01C19/5642
摘要： A vibrating gyroscope includes supporting members which are fixed in the vicinity of two node axes n1 and n2 of a bar-shaped vibrator. The supporting members corresponding to node axis n1 extend from the locations at which they are fixed to the vibrator in the widthwise direction of the vibrator, and also include bending portions and a proximity portion. The bending portions bend toward node axis n1. At the proximity portion, the supporting members are in close proximity with each other with a gap therebetween in the vicinity of node axis n1.
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