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    • 1. 发明授权
    • Transducer, electronic equipment, and method of adjusting frequency of transducer
    • 传感器,电子设备和调节频率的方法
    • US07246520B2
    • 2007-07-24
    • US10928103
    • 2004-08-30
    • Makoto EguchiShigeo Kanna
    • Makoto EguchiShigeo Kanna
    • G01P9/04
    • G01C19/56
    • To provide a transducer that can detect the rotation of the transducer with high degree of accuracy, a transducer includes a pair of oscillating reeds extending in the Y-direction to generate a first oscillation to generate a Coriolis force corresponding to the rotation of the transducer, a beam extending in the X-direction and connected to the pair of oscillating reeds, a first detecting unit provided on the beam to detect deformation of the beam due to a second oscillation of the pair of oscillating reeds caused by the Coriolis force, a base member to support the beam, a first connecting device to connect one end of the beam and the base member, and a second connecting device to connect the other end of the beam and the base member.
    • 为了提供能够高精度地检测换能器的旋转的换能器,换能器包括在Y方向上延伸的一对摆动簧片,以产生第一振荡以产生与换能器的旋转相对应的科里奥利力, 沿X方向延伸并连接到一对振荡簧片的光束,设置在光束上以检测由科里奥利力引起的一对振荡簧片的第二振荡引起的光束变形的第一检测单元,基部 用于支撑梁的构件,用于连接梁的一端和基座构件的第一连接装置,以及用于连接梁的另一端和基座构件的第二连接装置。
    • 4. 发明申请
    • Transducer, electronic equipment, and method of adjusting frequency of transducer
    • 传感器,电子设备和调节频率的方法
    • US20050086995A1
    • 2005-04-28
    • US10928103
    • 2004-08-30
    • Makoto EguchiShigeo Kanna
    • Makoto EguchiShigeo Kanna
    • G01C19/56G01C19/5628G01F25/00G01P21/00
    • G01C19/56
    • To provide a transducer that can detect the rotation of the transducer with high degree of accuracy, a transducer includes a pair of oscillating reeds extending in the Y-direction to generate a first oscillation to generate a Coriolis force corresponding to the rotation of the transducer, a beam extending in the X-direction and connected to the pair of oscillating reeds, a first detecting unit provided on the beam to detect deformation of the beam due to a second oscillation of the pair of oscillating reeds caused by the Coriolis force, a base member to support the beam, a first connecting device to connect one end of the beam and the base member, and a second connecting device to connect the other end of the beam and the base member.
    • 为了提供能够高精度地检测换能器的旋转的换能器,换能器包括在Y方向上延伸的一对摆动簧片,以产生第一振荡以产生与换能器的旋转相对应的科里奥利力, 沿X方向延伸并连接到一对振荡簧片的光束,设置在光束上以检测由科里奥利力引起的一对振荡簧片的第二振荡引起的光束变形的第一检测单元,基部 用于支撑梁的构件,用于连接梁的一端和基座构件的第一连接装置,以及用于连接梁的另一端和基座构件的第二连接装置。
    • 6. 发明申请
    • Surface acoustic wave device and electronic apparatus
    • 表面声波装置和电子设备
    • US20100001617A9
    • 2010-01-07
    • US11704103
    • 2007-02-06
    • Shigeo Kanna
    • Shigeo Kanna
    • H03H9/25
    • H03H9/02551
    • A surface acoustic wave device includes: a quartz substrate; and at least a single-type IDT electrode provided on a surface of the quartz substrate for exciting a Rayleigh surface acoustic wave in the upper limit mode of the surface acoustic wave stop band with the following relationships satisfied; φ=0, 110°≦θ≦140°, and 38°≦|ψ|≦44°, when the quartz substrate cut angles and the surface acoustic wave propagation direction are represented by Euler angles (φ, θ, ψ), and wherein the electrode thickness relative to wavelength set such that H/λ≧0.1796η3−0.4303η2+0.2071η+0.0682, with the thickness of the IDT electrode defined as H, the width of an electrode IDT finger defined as d, the pitch between the electrode fingers of the IDT electrode as P, the wavelength of the surface acoustic wave as λ, and where η=d/P.
    • 表面声波装置包括:石英基板; 以及设置在所述石英衬底的表面上的至少一个单一型IDT电极,用于激励所述表面声波阻带的上限模式中的瑞利表面声波,满足以下关系: 当石英衬底切割角度和表面声波传播方向由欧拉角(phi,θ,θ)表示时,phi = 0,110°<=θ<= 140°和38°<= | psi | psi),并且其中相对于波长设置的电极厚度使得H /λ> = 0.1796eta3-0.4303eta2 + 0.2071eta + 0.0682,其中IDT电极的厚度定义为H,电极IDT手指的宽度被定义为 d,IDT电极的电极指之间的间距为P,声表面波的波长为λ,eta = d / P。
    • 7. 发明授权
    • Method for adjusting the temperature-dependent property of a surface acoustic wave device and a surface acoustic device
    • 用于调节表面声波装置和表面声学装置的温度依赖性的方法
    • US06784595B2
    • 2004-08-31
    • US10229210
    • 2002-08-28
    • Keigo IizawaTakashi YamazakiShigeo Kanna
    • Keigo IizawaTakashi YamazakiShigeo Kanna
    • H01L4108
    • H03H3/10H03H9/02551
    • The invention provides a method for adjusting the temperature-dependent property of a surface acoustic wave device is provided,, The method is appropriate for a temperature-dependent property that is expressed by a cubic function of a surface acoustic wave device using an in-plane rotated ST cut quartz crystal plate. The invention therefore provides a method for adjusting the temperature-dependent property of a surface acoustic wave device using an in-plane rotated ST cut quartz crystal plate having Euler angles of (0°, 113-135°, ±(40-49°)). The range of Euler angles is defined so that the temperature-dependent property of the surface acoustic wave device, using an in-plane rotated ST cut quartz crystal plate having the temperature-dependent property expressed by a cubic function, has an extreme value within the temperature range of −40 to +85° C., and the temperature-dependent property is rotated about the inflection point to minimize the frequency fluctuation within the operational temperature range by using appropriate regions.
    • 本发明提供了一种用于调节表面声波器件的温度依赖性的方法,该方法适用于使用平面内的声表面波器件的三次函数表示的温度依赖性 旋转ST切割石英晶体板。 因此,本发明提供了一种使用具有(0°,113-135°,±(40-49°))欧拉角的平面内旋转的ST切割石英晶体板来调节声表面波器件的温度依赖性的方法, )。 欧拉角的范围被定义为使用具有由三次函数表示的温度依赖性的平面内旋转的ST切割石英晶体板,声表面波器件的温度依赖特性在 温度范围为-40至+ 85℃,并且温度依赖性质围绕拐点旋转,以通过使用适当的区域使工作温度范围内的频率波动最小化。
    • 8. 发明授权
    • Surface acoustic wave device
    • 表面声波装置
    • US06774747B2
    • 2004-08-10
    • US10211578
    • 2002-08-05
    • Takashi YamazakiKeigo IizawaShigeo Kanna
    • Takashi YamazakiKeigo IizawaShigeo Kanna
    • H03H900
    • H03H9/02551
    • The invention provides a surface acoustic wave device which uses an in-plane rotated ST cut quartz crystal plate around the Z′-axis, and which has a large reflection coefficient of the Rayleigh wave. Comb teeth-like IDT electrodes are provided and reflectors to trap the Rayleigh wave are provided on both sides of the IDT electrodes on the principal surface of the in-plane rotated ST cut quartz crystal plate. The electrode width and pitch at the IDT electrodes are defined as Lt, Pt, the width and pitch of short-circuit electrodes at the reflectors as Lr, Pr, and the thickness of the IDT electrodes and the short-circuit electrodes side as Ht and Hr. If the electrode widths and pitches are set up so that either or both of Lt/Pt and Lr/Pr become 0.32±0.1, this enables maximizing the reflection coefficient and achieving the miniaturization of device itself by reducing the number of the short-circuit electrodes.
    • 本发明提供一种表面声波装置,其使用围绕Z'轴的平面内旋转的ST切割石英晶体板,并且其具有大的瑞利波的反射系数。 提供梳齿状IDT电极,并且在面内旋转的ST切割石英晶体板的主表面上的IDT电极的两侧设置有用于捕获瑞利波的反射器。 IDT电极的电极宽度和间距被定义为Lt,Pt,反射器上的短路电极的宽度和间距为Lr,Pr,IDT电极和短路电极侧的厚度为Ht, 呃 如果设置电极宽度和间距,使得Lt / Pt和Lr / Pr中的任一个或两者变为0.32±0.1,则能够通过减少短路电极的数量来最大化反射系数并实现器件本身的小型化 。
    • 10. 发明授权
    • Surface acoustic wave device and electronic apparatus
    • 表面声波装置和电子设备
    • US07696675B2
    • 2010-04-13
    • US11704103
    • 2007-02-06
    • Shigeo Kanna
    • Shigeo Kanna
    • H03H9/64H03H9/25
    • H03H9/02551
    • A surface acoustic wave device includes: a quartz substrate; and at least a single-type IDT electrode provided on a surface of the quartz substrate for exciting a Rayleigh surface acoustic wave in the upper limit mode of the surface acoustic wave stop band with the following relationships satisfied; φ=0°, 110°≦θ≦140°, and 38°≦|ψ|≦44°, when the quartz substrate cut angles and the surface acoustic wave propagation direction are represented by Euler angles (φ, θ, ψ), and wherein the electrode thickness relative to wavelength set such that H/λ≧0.1796η3−0.4303η2+0.2071η+0.0682, with the thickness of the IDT electrode defined as H, the width of an electrode IDT finger defined as d, the pitch between the electrode fingers of the IDT electrode as P, the wavelength of the surface acoustic wave as λ, and where η=d/P.
    • 表面声波装置包括:石英基板; 以及设置在所述石英衬底的表面上的至少一个单一型IDT电极,用于激励所述表面声波阻带的上限模式中的瑞利表面声波,满足以下关系: 当石英衬底切割角度和表面声波传播方向由欧拉角(&phgr)表示时,φ= 0°,110°&nlE;&Thetas;&nlE; 140°和38°&nlE; |ψ| ;ψ),并且其中相对于波长设定的电极厚度使得H /λ≥0.1796&eegr; 3-0.4303&eggr2 + 0.2071&eegr +0.0682,其中IDT电极的厚度定义为H, 电极IDT手指的宽度定义为d,IDT电极的电极指之间的间距为P,表面声波的波长为λ,以及eegr = d / P。