公开(公告)号：US08830004B2

公开(公告)日：2014-09-09

申请号：US13559601

申请日：2012-07-27

Applicant: Mitsuaki Koyama ,  Toshihiko Kagami ,  Takeshi Matsumoto ,  Takeru Mutoh ,  Manabu Ishikawa ,  Shinichi Sato

Inventor： Mitsuaki Koyama ,  Toshihiko Kagami ,  Takeshi Matsumoto ,  Takeru Mutoh ,  Manabu Ishikawa ,  Shinichi Sato

IPC: H03H9/19 ,  G01N5/02 ,  H03H3/02 ,  H03H9/02

CPC classification number: H03H3/02 ,  H03H9/02 ,  H03H9/02086 ,  H03H9/542 ,  H03H9/566 ,  H03L1/023 ,  H03L1/028

Abstract: A crystal resonator comprises a first vibrating region provided on a crystal wafer, a second vibrating region provided on the crystal wafer, the second vibrating region having a different thickness and positive/negative orientation of the X-axis from those of the first vibrating region, and excitation electrodes which are provided respectively on the first vibrating region and the second vibrating region for causing the vibrating regions to vibrate independently. Frequencies that change by different amounts from each other relative to a temperature change can be retrieved from one vibrating region and the other vibrating region. Thus, based on an oscillating frequency of the vibrating region in which a clear frequency change occurs relative to the temperature, the oscillating frequency of the other vibrating region can be controlled. Thereby, increases in the complexity of the crystal oscillator can be suppressed.

Abstract translation: 晶体谐振器包括设置在晶体晶片上的第一振动区域，设置在晶体晶片上的第二振动区域，第二振动区域具有与第一振动区域不同的X轴的厚度和正/负取向， 以及分别设置在第一振动区域和第二振动区域上用于使振动区域独立振动的激励电极。 可以从一个振动区域和另一个振动区域检索相对于温度变化彼此变化的频率。 因此，基于相对于温度发生明显的频率变化的振动区域的振荡频率，可以控制另一个振动区域的振荡频率。 由此，可以抑制晶体振荡器的复杂性的增加。

公开(公告)号：US20120186351A1

公开(公告)日：2012-07-26

申请号：US13374627

申请日：2012-01-03

Applicant: Mitsuaki KOYAMA ,  Takeru MUTOH

Inventor： Mitsuaki KOYAMA ,  Takeru MUTOH

IPC: G01H11/06

CPC classification number: G01H11/08

Abstract: Provided is a device capable of easily and accurately detecting a vibration period when, for example, an earthquake occurs. When a quartz-crystal plate bends upon application of a force, capacitance between a movable electrode provided at its tip portion and a fixed electrode provided on a vessel to face the movable electrode changes, so that an oscillation frequency of the quartz-crystal plate changes according to this capacitance. Therefore, when the vessel is vibrated, there appear a first state where the quartz-crystal plate ends to approach the fixed electrode and a second state where the quartz-crystal plate is in an original state or bends to be apart from the fixed electrode. Accordingly, an oscillation frequency corresponding to the first state and corresponding to the second state alternately appear, and therefore, it is possible to find the period (frequency) of the vibration.

Abstract translation: 提供了能够容易且准确地检测例如发生地震时的振动周期的装置。 当石英晶片在施加力时弯曲，设置在其顶端的可动电极与设置在容器上的与可动电极相对的固定电极之间的电容发生变化，使得石英晶体板的振荡频率发生变化 根据这个电容。 因此，当容器振动时，出现石英板端部接近固定电极的第一状态和石英板处于原始状态或弯曲以与固定电极分开的第二状态。 因此，与第一状态对应的对应于第二状态的振荡频率交替出现，因此可以找到振动的周期（频率）。

公开(公告)号：USD604185S1

公开(公告)日：2009-11-17

申请号：US29310758

申请日：2008-09-09

Applicant: Shigenori Watanabe ,  Shunichi Wakamatsu ,  Hiroyuki Kukita ,  Takeru Mutoh

Designer： Shigenori Watanabe ,  Shunichi Wakamatsu ,  Hiroyuki Kukita ,  Takeru Mutoh

公开(公告)号：US08919201B2

公开(公告)日：2014-12-30

申请号：US13489421

申请日：2012-06-05

Applicant: Mitsuaki Koyama ,  Takeru Mutoh ,  Hiroki Iwai ,  Ryoichi Ichikawa

Inventor： Mitsuaki Koyama ,  Takeru Mutoh ,  Hiroki Iwai ,  Ryoichi Ichikawa

IPC: G01P15/125 ,  G01P15/09 ,  G01P15/097 ,  G01P15/08

CPC classification number: G01P15/125 ,  G01P15/097 ,  G01P2015/0817

Abstract: An acceleration measuring apparatus that can easily detect acceleration with high accuracy is provided. In the apparatus, positional displacement of a swingable pendulum member is detected, feedback control is performed to maintain the pendulum member in a stationary state using an actuator, and acceleration is measured by measuring the output of the actuator at this time. A movable electrode is provided to the pendulum member, and a loop is formed in which a fixed electrode provided to oppose the movable electrode, and an oscillating circuit, a crystal unit, and the movable electrode are electrically connected in series. By measuring an oscillating frequency of the oscillating circuit at this time, a change in the size of a variable capacitance formed between the movable electrode and the fixed electrode is detected, and thereby the positional displacement of the pendulum member is detected.

Abstract translation: 提供了能够以高精度容易地检测加速度的加速度测量装置。 在该装置中，检测出可摆动摆动构件的位置偏移，使用致动器进行反馈控制，使摆锤构件保持在静止状态，此时通过测量致动器的输出来测量加速度。 可动电极设置在摆动部件上，形成有与可动电极相对设置的固定电极以及振荡电路，晶体单元和可动电极串联电连接的环。 此时，通过测量振荡电路的振荡频率，检测出在可动电极和固定电极之间形成的可变电容的尺寸变化，从而检测摆锤构件的位置偏移。

公开(公告)号：US20120312097A1

公开(公告)日：2012-12-13

申请号：US13489421

申请日：2012-06-05

Applicant: MITSUAKI KOYAMA ,  TAKERU MUTOH ,  HIROKI IWAI ,  RYOICHI ICHIKAWA

Inventor： MITSUAKI KOYAMA ,  TAKERU MUTOH ,  HIROKI IWAI ,  RYOICHI ICHIKAWA

IPC: G01P15/09

CPC classification number: G01P15/125 ,  G01P15/097 ,  G01P2015/0817

Abstract: An acceleration measuring apparatus that can easily detect acceleration with high accuracy is provided. In the apparatus, positional displacement of a swingable pendulum member is detected, feedback control is performed to maintain the pendulum member in a stationary state using an actuator, and acceleration is measured by measuring the output of the actuator at this time. A movable electrode is provided to the pendulum member, and a loop is formed in which a fixed electrode provided to oppose the movable electrode, and an oscillating circuit, a crystal unit, and the movable electrode are electrically connected in series. By measuring an oscillating frequency of the oscillating circuit at this time, a change in the size of a variable capacitance formed between the movable electrode and the fixed electrode is detected, and thereby the positional displacement of the pendulum member is detected.

Abstract translation: 提供了能够以高精度容易地检测加速度的加速度测量装置。 在该装置中，检测出可摆动摆动构件的位置偏移，使用致动器进行反馈控制，使摆锤构件保持在静止状态，此时通过测量致动器的输出来测量加速度。 可动电极设置在摆动部件上，形成有与可动电极相对设置的固定电极以及振荡电路，晶体单元和可动电极串联电连接的环。 此时，通过测量振荡电路的振荡频率，检测出在可动电极和固定电极之间形成的可变电容的尺寸变化，从而检测摆锤构件的位置偏移。

公开(公告)号：US20120180568A1

公开(公告)日：2012-07-19

申请号：US13374769

申请日：2012-01-11

Applicant: Mitsuaki KOYAMA ,  Takeru MUTOH ,  Hiroki IWAI ,  Yoshiaki AMANO ,  Ryoichi ICHIKAWA

Inventor： Mitsuaki KOYAMA ,  Takeru MUTOH ,  Hiroki IWAI ,  Yoshiaki AMANO ,  Ryoichi ICHIKAWA

IPC: G01H13/00

CPC classification number: G01P15/097 ,  G01L1/142 ,  G01L1/162 ,  G01P1/023 ,  G01P15/125 ,  G01P2015/0828 ,  G01P2015/0871

Abstract: A device is provided for a detecting external force applied to piezoelectric piece. A crystal piece is cantilever-supported in a container. Excitation electrodes are formed on an upper face and lower face, respectively. A movable electrode, connected via a lead-out electrode to the excitation electrode, is formed on the lower face side at a front end of the crystal piece. A fixed electrode is provided on a bottom portion of the container to face this movable electrode. The excitation electrode on the upper face side and the fixed electrode are connected to an oscillation circuit. When the crystal piece bends in response to an applied external force, capacitance between the movable electrode and fixed electrode, changes. This capacitance change results in a corresponding change in oscillation frequency of the crystal piece.

Abstract translation: 提供了用于检测施加到压电片的外力的装置。 水晶片悬臂支撑在容器中。 激励电极分别形成在上表面和下表面上。 通过引出电极连接到激励电极的可动电极形成在晶片的前端的下表面侧。 固定电极设置在容器的底部上以面对该可动电极。 上侧激励电极和固定电极连接到振荡电路。 当晶体片响应于施加的外力弯曲时，可动电极和固定电极之间的电容发生变化。 该电容变化导致晶片的振荡频率的相应变化。

公开(公告)号：US20110064614A1

公开(公告)日：2011-03-17

申请号：US12736805

申请日：2009-03-02

Applicant: Shigenori Watanabe ,  Takeru Mutoh ,  Mitsuaki Koyama

Inventor： Shigenori Watanabe ,  Takeru Mutoh ,  Mitsuaki Koyama

IPC: G01N30/96 ,  H03H9/205

CPC classification number: G01N5/02 ,  G01G3/13 ,  G01G3/16 ,  G01G3/18 ,  G01N1/405 ,  G01N33/0004 ,  H03B5/323 ,  H03H3/04 ,  H03H9/02157 ,  H03H9/132 ,  H03H9/56 ,  H03H2003/0428 ,  H03H2003/0435 ,  H03H2003/0471

Abstract: Provided is a piezoelectric resonator having high frequency stability and a sensing sensor using the piezoelectric resonator. A piezoelectric resonator has a first oscillation area which is provided in a piezoelectric piece and from which a first oscillation frequency is taken out. A second oscillation area which is provided in an area different from the first oscillation area via an elastic boundary area and from which a second oscillation frequency is taken out. Excitation electrodes are provided on one surface side and another surface side of the oscillation areas across the piezoelectric piece, and a frequency difference between the first oscillation frequency and the second oscillation frequency is not less than 0.2% nor greater than 2.2% of these oscillation frequencies.

Abstract translation: 提供了一种具有高频稳定性的压电谐振器和使用压电谐振器的感测传感器。 压电谐振器具有设置在压电片中的第一振荡区域，并且从其中取出第一振荡频率。 第二振荡区域，其经由弹性边界区域设置在与第一振荡区域不同的区域中，并且从其中取出第二振荡频率。 激励电极设置在压电片的振荡区域的一个表面侧和另一个表面侧，并且第一振荡频率与第二振荡频率之间的频率差不小于这些振荡频率的0.2％或不大于2.2％ 。

公开(公告)号：US20100329932A1

公开(公告)日：2010-12-30

申请号：US12803220

申请日：2010-06-22

Applicant: Tomoya Yorita ,  Shunichi Wakamatsu ,  Shigenori Watanabe ,  Takeru Mutoh

Inventor： Tomoya Yorita ,  Shunichi Wakamatsu ,  Shigenori Watanabe ,  Takeru Mutoh

IPC: G01N27/00

CPC classification number: G01N29/222 ,  G01N29/022 ,  G01N29/036 ,  G01N2291/0255 ,  G01N2291/0256

Abstract: To provide a sensing device that measures a substance to be sensed while letting a sample solution flow and has improved accuracy in detecting the substance to be sensed. The sensing device includes: a channel forming member 50 including an opposed surface opposed to an oscillation area on one surface side of a piezoelectric sensor via a gap to form a reaction channel in an area facing the one surface side; a liquid supply channel through which a liquid is supplied to the reaction channel and a liquid discharge channel through which a liquid is discharged from the reaction channel; oscillator circuits 30a, 30b oscillating the quartz-crystal piece; and a frequency measuring part 81 measuring oscillation frequencies of the oscillator circuits 30a, 30b, wherein a height of the reaction channel facing the oscillation area on the one surface side of the quartz-crystal sensor is 0.2 mm or less.

Abstract translation: 提供一种感测装置，其在使样品溶液流动的同时测量待检测物质，并且在检测待检测物质时具有提高的准确度。 感测装置包括：通道形成构件50，其包括与压电传感器的一个表面侧上的振荡区域相对的相对表面，该相对表面经由间隙在形成面向一个表面侧的区域中形成反应通道; 将液体通过其供应到反应通道的液体供应通道和液体从反应通道排出的液体排出通道; 振荡电路30a，30b振荡石英晶片; 以及测量振荡电路30a，30b的振荡频率的频率测量部分81，其中面对石英晶体传感器的一个表面侧的振荡区域的反应通道的高度为0.2mm或更小。

公开(公告)号：US09016128B2

公开(公告)日：2015-04-28

申请号：US13374759

申请日：2012-01-10

Applicant: Mitsuaki Koyama ,  Takeru Mutoh ,  Hiroki Iwai

Inventor： Mitsuaki Koyama ,  Takeru Mutoh ,  Hiroki Iwai

IPC: G01H13/00 ,  G01P15/097 ,  G01P1/00 ,  G01P1/02 ,  G01P15/125 ,  G01L1/14 ,  G01L1/16 ,  G01P15/08

CPC classification number: G01P15/097 ,  G01L1/142 ,  G01L1/162 ,  G01P1/00 ,  G01P1/006 ,  G01P1/023 ,  G01P15/125 ,  G01P2015/0828 ,  G01P2015/0871

Abstract: A technique for detecting external force applied to a piezoelectric plate is provided. A crystal plate is cantilever-supported in a container. Excitation electrodes are formed on an upper face and lower face, respectively, of the crystal plate. A movable electrode is formed on the lower face side. A fixed electrode is provided on a bottom portion of the container facing the movable electrode. The excitation electrode on the upper face side and the fixed electrode are connected to an oscillation circuit. When the crystal plate bends by external force applied, capacitance between. A direction of the movable electrode along a length direction of the crystal plate is set to 30° to 60°, relative to a face orthogonal to an intended direction of the external force. The movable electrode and fixed electrode changes, and this capacitance change and a deformation of the crystal circuit.

Abstract translation: 提供了一种用于检测施加到压电板的外力的技术。 水晶板悬臂支撑在容器中。 激励电极分别形成在晶体板的上表面和下表面上。 可动电极形成在下表面侧。 在面向可动电极的容器的底部设置固定电极。 上侧激励电极和固定电极连接到振荡电路。 当晶体板通过外力施加弯曲时，电容之间。 可移动电极沿着晶体板的长度方向的方向相对于与外力的预期方向正交的面设定为30°〜60°。 可动电极和固定电极发生变化，电容变化，晶体电路变形。

公开(公告)号：US20100329928A1

公开(公告)日：2010-12-30

申请号：US12803228

申请日：2010-06-22

Applicant: Tomoya Yorita ,  Shunichi Wakamatsu ,  Shigenori Watanabe ,  Takeru Mutoh

Inventor： Tomoya Yorita ,  Shunichi Wakamatsu ,  Shigenori Watanabe ,  Takeru Mutoh

IPC: G01N33/00

CPC classification number: G01N15/00 ,  Y10T436/11 ,  Y10T436/25375

Abstract: To provide a sensing device using a piezoelectric sensor having an oscillation area for detection and an oscillation area for reference and capable of achieving a high measurement sensitivity by improving shapes of excitation electrodes. On a quartz-crystal piece 20a, there are provided strip-shaped left side area and right side area which are formed symmetrically to be separated from each other into left and right with respect to a center of a circle 53 being a contour of a planar shape of a reaction channel 52 and extend in a longitudinal direction in a parallel manner. Each of the areas is set to have a size in which both corner portions 100 on the left side of the left side area and both corner portions 100 on the right side of the right side area protrude to the outside of the circle 53, the corner portions 100 that protrude to the outside are cut to make the left side area and the right side area position inside of the circle 53, and an excitation electrode 21a for measurement and an excitation electrode 21b for reference are respectively formed on the right side area and the left side area.

Abstract translation: 为了提供使用具有用于检测的振荡区域和用于参考的振荡区域的压电传感器的感测装置，并且能够通过改善激励电极的形状来实现高测量灵敏度。 在石英片20a上，设有条形左侧区域和右侧区域，它们对称地形成为相对于圆53的中心彼此分离的左侧和右侧，该中心是平面的轮廓 反应通道52的形状并且以纵向方向平行地延伸。 每个区域被设定为具有左侧区域左侧的两个角部100和右侧区域右侧的两个角部100向圆53的外侧突出的尺寸， 将向外侧突出的部分100切割成在圆53内部的左侧区域和右侧区域位置，并且在右侧区域分别形成用于测量的激励电极21a和用于参考的激励电极21b， 左侧区域。