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    • 3. 发明申请
    • PIEZOELECTRIC SENSOR AND SENSING INSTRUMENT
    • 压电传感器和感应仪器
    • US20110064615A1
    • 2011-03-17
    • US12736822
    • 2009-03-02
    • Shigenori WatanabeTakeru MutohMitsuaki Koyama
    • Shigenori WatanabeTakeru MutohMitsuaki Koyama
    • G01N30/00
    • G01N5/02G01N1/405G01N29/022G01N29/2443G01N2291/02466
    • An object of the present invention is to improve detecting ability of a piezoelectric sensor.The present invention, in a piezoelectric sensor having electrodes that are each made of a gold layer formed on one surface side and the other surface side of a piezoelectric piece via adhesive layers by sputtering respectively, and having an adsorption layer that is composed of an antibody provided on a front surface of the electrode on the one surface side, and having the electrode on the other surface side provided to face an airtight space, and detecting an antigen adsorbed to the antibody in accordance with a change in an oscillation frequency of the piezoelectric piece, includes: conductive paths connecting the electrodes to an oscillator circuit; and a conductive adhesive provided over the electrodes and the conductive paths in order to fix the electrodes to the conductive paths and having a binder cure in a state where a conductive filler is joined to the gold layer, and a thickness of the gold layer is set to be equal to or more than 3000 Å.
    • 本发明的目的在于提高压电传感器的检测能力。 本发明涉及一种压电传感器,其具有分别通过溅射形成在压电片的一个表面侧的金层和通过溅射的粘合层形成的电极的电极,并且具有由抗体构成的吸附层 设置在一个表面侧的电极的前表面上,并且将另一个表面侧的电极设置为面对气密空间,并且根据压电体的振荡频率的变化来检测吸附于抗体的抗原 包括:将电极连接到振荡器电路的导电路径; 以及设置在电极和导电路径上的导电粘合剂,以便将电极固定到导电路径上并且在导电填料与金层接合的状态下具有粘合剂固化,并且设置金层的厚度 等于或大于3000Å​​。
    • 6. 发明授权
    • Acceleration measuring apparatus
    • 加速度测量仪
    • US08919201B2
    • 2014-12-30
    • US13489421
    • 2012-06-05
    • Mitsuaki KoyamaTakeru MutohHiroki IwaiRyoichi Ichikawa
    • Mitsuaki KoyamaTakeru MutohHiroki IwaiRyoichi Ichikawa
    • G01P15/125G01P15/09G01P15/097G01P15/08
    • G01P15/125G01P15/097G01P2015/0817
    • 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.
    • 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。
    • 7. 发明授权
    • Vibration detecting device
    • 振动检测装置
    • US08677828B2
    • 2014-03-25
    • US13374627
    • 2012-01-03
    • Mitsuaki KoyamaTakeru Mutoh
    • Mitsuaki KoyamaTakeru Mutoh
    • G01H11/06
    • G01H11/08
    • 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.
    • 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)。
    • 10. 发明授权
    • Piezoelectric oscillator
    • 压电振荡器
    • US08242856B2
    • 2012-08-14
    • US12927888
    • 2010-11-29
    • Mitsuaki KoyamaShigetaka KagaKazuo AkaikeShigenori Watanabe
    • Mitsuaki KoyamaShigetaka KagaKazuo AkaikeShigenori Watanabe
    • H03B5/32
    • H03L1/04H03H9/0509H03H9/1021H03H9/132H03H9/19H03L1/023H03L1/025
    • There is provided a temperature compensated piezoelectric oscillator which excels in frequency stability and has a good electronic noise characteristic, and with which a circuit can be structured simply. An auxiliary oscillator unit 21 sharing a crystal substrate 2 with a main oscillator unit 11 outputting a set frequency f0 to an outside is used as a temperature detecting unit 32 detecting a temperature T for obtaining a compensation voltage ΔV in a temperature compensated piezoelectric oscillator (TCXO), and electrodes 13, 23 of the main oscillator unit 11 and the auxiliary oscillator unit 21 are provided separately on the crystal substrate 2. For example, a fundamental wave and an overtone are used or a thickness shear vibration and a contour shear vibration are used in the main oscillator unit 11 and the auxiliary oscillator unit 21, respectively.
    • 提供了一种温度补偿压电振荡器,其频率稳定性优异并且具有良好的电子噪声特性,并且可以简单地构造电路。 使用共用晶体基板2的辅助振荡器单元21与将外部设定频率f0的主振荡器单元11共同作为温度检测单元32,检测用于获得温度补偿压电振荡器中的补偿电压&Dgr; V的温度T (TCXO)和主振荡器单元11和辅助振荡器单元21的电极13,23分别设置在晶体基板2上。例如,使用基波和泛音,或者使用厚度剪切振动和轮廓剪切 在主振荡器单元11和辅助振荡器单元21中分别使用振动。