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1. 发明申请

US20060162453A1 Acceleration sensor 有权
公开(公告)号：US20060162453A1
公开(公告)日：2006-07-27
申请号：US10540240
申请日：2004-07-01
申请人： Atsushi Mikado , Jun Tabota
发明人： Atsushi Mikado , Jun Tabota
IPC分类号： G01P15/08 , G01P3/44
CPC分类号： G01P15/09 , G01P15/097
摘要： A compact, high-sensitivity acceleration sensor that is prevented from being affected by factors other than acceleration, such as a change in temperature, has a bimorph acceleration-sensor element including first and second resonators attached to opposite sides of a base plate with respect to a direction in which acceleration is applied. One longitudinal end of the acceleration-sensor element is fixed such that the first and second resonators bend in the same direction in response to the acceleration. Changes in frequency or changes in impedance in the first and second resonators caused by the bending of the acceleration-sensor element are differentially detected in order to detect the acceleration. The acceleration-sensor element is bendable about a central bending plane in response to the acceleration, the central bending plane being positioned at a central portion of the base plate with respect to the application direction of acceleration. A vibrating section of each of the first and second resonators is disposed close to the fixed end of the acceleration-sensor element.

2. 发明申请

US20060144145A1 Acceleration sensor 有权
标题翻译：加速度传感器
公开(公告)号：US20060144145A1
公开(公告)日：2006-07-06
申请号：US10540238
申请日：2004-07-01
申请人： Atsushi Mikado , Jun Tabota
发明人： Atsushi Mikado , Jun Tabota
IPC分类号： G01P15/09
CPC分类号： G01P15/09 , G01P15/097
摘要： A compact, highly sensitive acceleration sensor that is not affected by factors other than acceleration, such as a change in temperature, includes a bimorph acceleration-sensor element including first and second resonators and attached to opposite sides of a base plate with respect to a direction in which acceleration is applied. One longitudinal end or both longitudinal ends of the acceleration-sensor element is/are fixed such that the resonators bend in the same direction in response to the acceleration. Changes in frequency or changes in impedance in the resonators caused by the bending of the acceleration-sensor element are differentially detected in order to detect the acceleration. The acceleration-sensor element is bendable about a central bending plane N1 in response to the acceleration, the central bending plane N1 being positioned at a central portion of the base plate with respect to the application direction of acceleration. Electrodes are disposed on main surfaces of the resonators, the main surfaces being substantially perpendicular to the application direction of acceleration. The height H1 of the resonators in a direction that is substantially perpendicular to the application direction of acceleration is smaller than the height H2 of the base plate in the direction that is substantially perpendicular to the application direction of acceleration.
摘要翻译：不受诸如温度变化之类的加速度以外的因素影响的紧凑，高灵敏度的加速度传感器包括双压电晶片加速度传感器元件，包括第一和第二谐振器，并且相对于方向连接到基板的相对侧其中施加加速度。加速度传感器元件的一个纵向端部或两个纵向端部被固定，使得谐振器响应于加速度沿相同的方向弯曲。为了检测加速度，差分地检测由加速度传感器元件的弯曲引起的谐振器的频率变化或阻抗变化。加速度传感器元件响应于加速度而围绕中心弯曲平面N1弯曲，中心弯曲平面N1相对于加速度的施加方向位于基板的中心部分。电极设置在谐振器的主表面上，主表面基本上垂直于加速度的施加方向。谐振器的基本上垂直于加速度的施加方向的方向的高度H 1 1小于基板的高度H 2 2 基本垂直于加速度的施加方向。

3. 发明授权

US07194906B2 Acceleration sensor having resonators with reduced height 有权
标题翻译：具有降低高度的谐振器的加速度传感器
公开(公告)号：US07194906B2
公开(公告)日：2007-03-27
申请号：US10540238
申请日：2004-07-01
申请人： Atsushi Mikado , Jun Tabota
发明人： Atsushi Mikado , Jun Tabota
IPC分类号： G01P15/10
CPC分类号： G01P15/09 , G01P15/097
摘要： A compact, highly sensitive acceleration sensor that is not affected by factors other than acceleration, such as a change in temperature, includes a bimorph acceleration-sensor element including first and second resonators and attached to opposite sides of a base plate with respect to a direction in which acceleration is applied. One longitudinal end or both longitudinal ends of the acceleration-sensor element is/are fixed such that the resonators bend in the same direction in response to the acceleration. Changes in frequency or changes in impedance in the resonators caused by the bending of the acceleration-sensor element are differentially detected in order to detect the acceleration. The acceleration-sensor element is bendable about a central bending plane N1 in response to the acceleration, the central bending plane N1 being positioned at a central portion of the base plate with respect to the application direction of acceleration. Electrodes are disposed on main surfaces of the resonators, the main surfaces being substantially perpendicular to the application direction of acceleration. The height H1 of the resonators in a direction that is substantially perpendicular to the application direction of acceleration is smaller than the height H2 of the base plate in the direction that is substantially perpendicular to the application direction of acceleration.
摘要翻译：不受诸如温度变化之类的加速度以外的因素影响的紧凑，高灵敏度的加速度传感器包括双压电晶片加速度传感器元件，包括第一和第二谐振器，并且相对于方向连接到基板的相对侧其中施加加速度。加速度传感器元件的一个纵向端部或两个纵向端部被固定，使得谐振器响应于加速度沿相同的方向弯曲。为了检测加速度，差分地检测由加速度传感器元件的弯曲引起的谐振器的频率变化或阻抗变化。加速度传感器元件可以响应于加速度而围绕中心弯曲平面N 1弯曲，中心弯曲平面N 1相对于加速度的施加方向位于基板的中心部分。电极设置在谐振器的主表面上，主表面基本上垂直于加速度的施加方向。谐振器的基本上垂直于加速度的施加方向的方向的高度H 1 1小于基板的高度H 2 2 基本垂直于加速度的施加方向。

4. 发明授权

US07134339B2 Acceleration sensor 有权
标题翻译：加速度传感器
公开(公告)号：US07134339B2
公开(公告)日：2006-11-14
申请号：US10540240
申请日：2004-07-01
申请人： Atsushi Mikado , Jun Tabota
发明人： Atsushi Mikado , Jun Tabota
IPC分类号： G01P15/10
CPC分类号： G01P15/09 , G01P15/097
摘要： A compact, high-sensitivity acceleration sensor that is prevented from being affected by factors other than acceleration, such as a change in temperature, has a bimorph acceleration-sensor element including first and second resonators attached to opposite sides of a base plate with respect to a direction in which acceleration is applied. One longitudinal end of the acceleration-sensor element is fixed such that the first and second resonators bend in the same direction in response to the acceleration. Changes in frequency or changes in impedance in the first and second resonators caused by the bending of the acceleration-sensor element are differentially detected in order to detect the acceleration. The acceleration-sensor element is bendable about a central bending plane in response to the acceleration, the central bending plane being positioned at a central portion of the base plate with respect to the application direction of acceleration. A vibrating section of each of the first and second resonators is disposed close to the fixed end of the acceleration-sensor element.
摘要翻译：一种紧凑的，高灵敏度的加速度传感器被防止受加速度以外的因素（例如温度变化）的影响，具有双压电晶片加速度传感器元件，包括第一和第二谐振器，该谐振器相对于基板施加加速度的方向。加速度传感器元件的一个纵向端被固定为使得第一和第二谐振器响应于加速度在相同的方向弯曲。为了检测加速度，差异地检测由加速度传感器元件的弯曲引起的第一和第二谐振器的频率变化或阻抗变化。加速度传感器元件响应于加速度而围绕中心弯曲平面弯曲，中心弯曲平面相对于加速度的施加方向位于基板的中心部分。第一和第二谐振器中的每一个的振动部分靠近加速度传感器元件的固定端设置。

5. 发明授权

US07353707B2 Acceleration sensor 有权
标题翻译：加速度传感器
公开(公告)号：US07353707B2
公开(公告)日：2008-04-08
申请号：US10540239
申请日：2004-07-01
申请人： Atsushi Mikado , Jun Tabota
发明人： Atsushi Mikado , Jun Tabota
IPC分类号： G01P15/10
CPC分类号： G01P15/097 , G01P15/09
摘要： An acceleration sensor in which a difference in resonance characteristics between two resonators can be easily adjusted even when casing components are already attached to an acceleration-sensor element includes a bimorph acceleration-sensor element having first and second resonators attached to opposite sides of a base plate with respect to a direction in which acceleration is applied. One longitudinal end or both longitudinal ends of the acceleration-sensor element is/are fixed such that the first and second resonators bend in the same direction in response to the acceleration. Changes in frequency or changes in impedance in the first and second resonators caused by the bending of the acceleration-sensor element are differentially detected in order to detect the acceleration. Opposite sides of the acceleration-sensor element with respect to the application direction of acceleration are respectively covered with a pair of casing components. Electrodes disposed on the main surfaces of the respective first and second resonators face one of opposite open planes defined by a combination of the acceleration-sensor element and the casing components with respect to a direction perpendicular to the application direction of acceleration. Accordingly, a trimming process for the electrodes can be readily performed.
摘要翻译：即使在壳体部件已经附接到加速度传感器元件的情况下也可以容易地调节两个谐振器之间的谐振特性的差异的加速度传感器，其包括：双压电晶片加速度传感器元件，其具有安装在基板的相对侧的第一和第二谐振器相对于施加加速度的方向。加速度传感器元件的一个纵向端部或两个纵向端部被固定，使得第一和第二谐振器响应于加速度在相同的方向弯曲。为了检测加速度，差异地检测由加速度传感器元件的弯曲引起的第一和第二谐振器的频率变化或阻抗变化。加速度传感器元件相对于加速度的施加方向的相对侧分别被一对壳体部件覆盖。设置在相应的第一和第二谐振器的主表面上的电极相对于垂直于加速度的施加方向的方向面对由加速度传感器元件和壳体部件的组合限定的相对开口面之一。因此，可以容易地进行电极的修整处理。

6. 发明申请

US20060081048A1 Acceleration sensor 有权
标题翻译：加速度传感器
公开(公告)号：US20060081048A1
公开(公告)日：2006-04-20
申请号：US10540239
申请日：2004-07-01
申请人： Atsushi Mikado , Jun Tabota
发明人： Atsushi Mikado , Jun Tabota
IPC分类号： G01P15/09
CPC分类号： G01P15/097 , G01P15/09
摘要： An acceleration sensor in which a difference in resonance characteristics between two resonators can be easily adjusted even when casing components are already attached to an acceleration-sensor element includes a bimorph acceleration-sensor element having first and second resonators attached to opposite sides of a base plate with respect to a direction in which acceleration is applied. One longitudinal end or both longitudinal ends of the acceleration-sensor element is/are fixed such that the first and second resonators bend in the same direction in response to the acceleration. Changes in frequency or changes in impedance in the first and second resonators caused by the bending of the acceleration-sensor element are differentially detected in order to detect the acceleration. Opposite sides of the acceleration-sensor element with respect to the application direction of acceleration are respectively covered with a pair of casing components. Electrodes disposed on the main surfaces of the respective first and second resonators face one of opposite open planes defined by a combination of the acceleration-sensor element and the casing components with respect to a direction perpendicular to the application direction of acceleration. Accordingly, a trimming process for the electrodes can be readily performed.
摘要翻译：即使在壳体部件已经附接到加速度传感器元件的情况下也可以容易地调节两个谐振器之间的谐振特性的差异的加速度传感器，其包括：双压电晶片加速度传感器元件，其具有安装在基板的相对侧的第一和第二谐振器相对于施加加速度的方向。加速度传感器元件的一个纵向端部或两个纵向端部被固定，使得第一和第二谐振器响应于加速度在相同的方向弯曲。为了检测加速度，差异地检测由加速度传感器元件的弯曲引起的第一和第二谐振器的频率变化或阻抗变化。加速度传感器元件相对于加速度的施加方向的相对侧分别被一对壳体部件覆盖。设置在相应的第一和第二谐振器的主表面上的电极相对于垂直于加速度的施加方向的方向面对由加速度传感器元件和壳体部件的组合限定的相对开口面之一。因此，可以容易地进行电极的修整处理。

7. 发明授权

US06810740B2 Acceleration sensor 有权
标题翻译：加速度传感器
公开(公告)号：US06810740B2
公开(公告)日：2004-11-02
申请号：US10376777
申请日：2003-02-28
申请人： Jun Tabota
发明人： Jun Tabota
IPC分类号： G01P1509
CPC分类号： G01P15/0922
摘要： An acceleration sensor includes a piezoelectric element and a support member for supporting the piezoelectric element at both longitudinal ends thereof. The piezoelectric element includes a laminate having a plurality of piezoelectric layers. An intermediate piezoelectric layer is a dummy layer which generates no charge when acceleration is applied thereto. Each of the two outer piezoelectric layers includes four longitudinally aligned regions separated at two borders and one central border where stress is inverted when the acceleration is applied. The two outer piezoelectric layers are polarized in the direction of thickness of the piezoelectric element such that cells adjacent to each other in the longitudinal direction of the piezoelectric elements have opposite polarization directions and such that cells aligned with each other in the direction of thickness have the same polarization. Electrodes are arranged on the top and bottom major surfaces of the piezoelectric element and between the piezoelectric layers so that two cells on one side of the central border are connected in parallel with the other two cells on the other side of the central border are connected in parallel in each of the two outer piezoelectric layers, and so that the two parallel-connected cells in the one side are serially connected with the other two parallel-connected cells on the other side. At least one of the electrodes on each of the top and bottom major surfaces and between the layers extends to different longitudinal end surfaces of the piezoelectric element.
摘要翻译：加速度传感器包括压电元件和用于在其两个纵向端部处支撑压电元件的支撑构件。压电元件包括具有多个压电层的层叠体。中间压电层是当加速度时不产生电荷的虚拟层。两个外部压电层中的每一个包括在两个边界处分开的四个纵向排列的区域和一个中心边界，其中施加加速度时应力被反转。两个外部压电层在压电元件的厚度方向上极化，使得在压电元件的纵向彼此相邻的电池具有相反的偏振方向，并且使得在厚度方向上彼此对准的电池具有相同的极化电极布置在压电元件的顶部和底部主表面和压电层之间，使得中心边界一侧上的两个电池与中央边界另一侧上的另外两个电池并联连接平行于两个外部压电层中的每一个，并且使得一侧中的两个并联连接的单元与另一个两个并联连接的单元串联连接。顶表面和底部主表面中以及层之间的电极中的至少一个延伸到压电元件的不同纵向端面。

8. 发明授权

US6094984A Acceleration sensor with a circuit board separated from a base plate by a space 失效
标题翻译：加速度传感器，电路板由基板与空间隔开
公开(公告)号：US6094984A
公开(公告)日：2000-08-01
申请号：US925896
申请日：1997-09-08
申请人： Hiroshi Asano , Jun Tabota , Muneharu Yamashita , Toshihiro Mizuno , Masayuki Ichimaru
发明人： Hiroshi Asano , Jun Tabota , Muneharu Yamashita , Toshihiro Mizuno , Masayuki Ichimaru
IPC分类号： G01P1/02 , G01P15/09 , H05K3/30
CPC分类号： G01P1/023 , G01P15/0915 , H05K3/306
摘要： An acceleration sensor 1 comprises a circuit board 3 on which an acceleration detecting element 2 is carried. A plurality of connecting terminals 4 arranged along the periphery of the circuit board 3 are projected outward after penetrating through a metal base plate 5. The metal base plate 5 is fixed to the connecting terminals 4 spaced apart from the circuit board 3 by a predetermined distance in a state being insulated from the connecting terminals 4. The peripheral edge of the metal base plate 5 is connected to a case 7 covering the entire acceleration sensor 1. Circuit elements constituting a signal processing circuit for processing a detection signal of the acceleration detecting element 2 are arranged on the upper surface and the lower surface of the circuit board 3.
摘要翻译：加速度传感器1包括承载有加速度检测元件2的电路基板3。沿着电路板3的周边布置的多个连接端子4在穿过金属基板5之后向外突出。金属基板5固定到与电路板3间隔开预定距离的连接端子4 在与连接端子4绝缘的状态下。金属基板5的周缘连接到覆盖整个加速度传感器1的壳体7.构成用于处理加速度检测元件的检测信号的信号处理电路的电路元件 2布置在电路板3的上表面和下表面上。

9. 发明授权

US6043588A Piezoelectric sensor and acceleration sensor 失效
标题翻译：压电传感器和加速度传感器
公开(公告)号：US6043588A
公开(公告)日：2000-03-28
申请号：US683231
申请日：1996-07-18
申请人： Jun Tabota , Mitsugu Ogiura , Toshihiko Unami
发明人： Jun Tabota , Mitsugu Ogiura , Toshihiko Unami
IPC分类号： G01P15/09 , H01L41/113 , H01L41/08
CPC分类号： G01P15/0922 , H01L41/1132 , G01N2291/02827
摘要： A piezoelectric sensor has a piezoelectric element having a specific axis of sensitivity and a package for the piezoelectric element. The package has a rectangular parrallelopiped configuration with opposite longitudinal end surfaces having a height-to-width ratio of about 1:1. External lead electrodes are formed to cover at least the longitudinal end surfaces. A method and apparatus for detecting if the sensor is disposed in the proper posture is also disclosed.
摘要翻译：压电传感器具有具有特定的灵敏轴的压电元件和用于压电元件的封装。该包装具有长方形的直立螺旋形结构，其具有相对的纵向端面，其高度与宽度之比约为1:1。外部引线电极形成为至少覆盖纵向端面。还公开了一种用于检测传感器是否处于适当姿势的方法和装置。

10. 发明授权

US5812495A Ultrasonic rangefinder 失效
标题翻译：超声波测距仪
公开(公告)号：US5812495A
公开(公告)日：1998-09-22
申请号：US668411
申请日：1996-06-21
申请人： Muneharu Yamashita , Jun Tabota , Yasuharu Matsui
发明人： Muneharu Yamashita , Jun Tabota , Yasuharu Matsui
IPC分类号： G01S7/521 , G01S7/527 , G01S7/529 , G01S15/10 , G01S15/00 , G01N29/00
CPC分类号： G01S7/521 , G01S7/527 , G01S7/529
摘要： An ultrasonic rangefinder capable of effectively removing high-level, directly transmitted wave components. The rangefinder can be used even at low temperatures. The rangefinder comprises an input signal-processing circuit, an output signal-processing circuit, and a gain control circuit inserted between the input and output signal-processing circuits. The output signal-processing circuit includes a reception amplification circuit and a detection circuit, the reception amplification circuit having an amplifier. The gain control circuit lowers the gain of the reception amplification circuit to raise the undetected and detected input voltage levels applied to the detection circuit. The gain control circuit comprises three control devices. The first control device is driven into conduction when its input pulse signal varies from a low level to a high level. The second control device reduces the feedback resistance of the amplifier of the reception amplification circuit in response to conduction of the first control device. In response to conduction of the first control device, the third control device controls the time for which the second control device operates.
摘要翻译：超声波测距仪能够有效地去除高级直接传输的波浪成分。即使在低温下也可使用测距仪。测距仪包括输入信号处理电路，输出信号处理电路和插入在输入和输出信号处理电路之间的增益控制电路。输出信号处理电路包括接收放大电路和检测电路，接收放大电路具有放大器。增益控制电路降低接收放大电路的增益，以提高未检测到和检测到的施加到检测电路的输入电压电平。增益控制电路包括三个控制装置。当其输入脉冲信号从低电平变化到高电平时，第一控制装置被驱动导通。第二控制装置响应于第一控制装置的导通而降低接收放大电路的放大器的反馈电阻。响应于第一控制装置的导通，第三控制装置控制第二控制装置工作的时间。

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