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1.发明授权
公开(公告)号：US4810965A
公开(公告)日：1989-03-07
申请号：US906027
申请日：1986-09-11
申请人： Yoshiro Fujiwara , Michiko Endo , Yuji Kojima , Noboru Wakatsuki , Akira Hirano , Kazunari Komenou
发明人： Yoshiro Fujiwara , Michiko Endo , Yuji Kojima , Noboru Wakatsuki , Akira Hirano , Kazunari Komenou
CPC分类号： G01D5/20
摘要： A position detector having a magnetic sensor for measuring linear or angular displacement, or detecting a position of a body without contact thereto. The detector has a closed circuit including magnets and yokes. The magnetic leakage flux which emanates from the inside surfaces of the yokes is utilized to detect the position of the body. The magnetic sensor is transferred along the inside surfaces of the yokes by a transferring circuit, which senses the magnetic field intensity of the leakage flux distributed thereon. This enables the detector to have a longer measuring range than that of a prior art detectors. An output signal is stable due to the shielding effect of the yokes. The magnetic closed circuit has many magnetic and mechanical configurations. For example, for the magnet, a permanent magnet and an electromagnet can be used. Further, improvements are proposed for enhancing the linearity of the output signal voltage with respect to the transferring distance of the sensing element and for compensating the offset drift of an amplifier or changing the coercive force of permanent magnets.
摘要翻译： 一种位置检测器，具有用于测量线性或角位移的磁传感器，或者检测身体的位置而不与其接触。 检测器具有包括磁体和轭的封闭电路。 利用从轭的内表面发出的漏磁通来检测身体的位置。 磁传感器通过传递电路沿着轭的内表面传递，传输电路感测分布在其上的漏磁通的磁场强度。 这使得检测器具有比现有技术的检测器更长的测量范围。 输出信号由于磁轭的屏蔽效应而稳定。 磁闭环具有许多磁力和机械结构。 例如，对于磁体，可以使用永磁体和电磁体。 此外，提出了相对于感测元件的传送距离来增强输出信号电压的线性度并且用于补偿放大器的偏移漂移或改变永磁体的矫顽力的改进。
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公开(公告)号：US4583019A
公开(公告)日：1986-04-15
申请号：US613187
申请日：1984-05-23
申请人： Sumio Yamada , Yoshiro Fujiwara , Noboru Wakatsuki , Yuji Kojima
发明人： Sumio Yamada , Yoshiro Fujiwara , Noboru Wakatsuki , Yuji Kojima
CPC分类号： H03H9/177 , H03H9/02031 , H03H9/0547 , H03H9/1014
摘要： A piezoelectric resonator with a rectangular parallelepiped resonator. A lithium niobate single crystal is used as the resonator chip material. Each of the opposed main surfaces of the resonator chip is arranged to be a surface of a rotated Y-cut plate which is rotated 165.+-.5 degrees about an X-axis. The angle of the longitudinal direction of the resonator chip is arranged to be 90.+-.5 degrees with respect to the X-axis of the rotated Y-cut plate.
摘要翻译： 一种具有矩形平行六面体谐振器的压电谐振器。 使用铌酸锂单晶作为谐振器芯片材料。 谐振器芯片的相对的主表面中的每一个被布置为旋转的Y切割板的表面，其相对于X轴旋转165 +/- 5度。 谐振器芯片的纵向方向的角度相对于旋转的Y切割板的X轴设置为90 +/- 5度。
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3.发明授权Piezoelectric resonator chip and trimming method for adjusting the frequency thereof 失效压电谐振器芯片和调整其频率的修整方法
公开(公告)号：US4468582A
公开(公告)日：1984-08-28
申请号：US486532
申请日：1983-04-19
摘要： A piezoelectric resonator chip which includes a piezoelectric chip plate and a pair of electrode patterns which is formed on the opposite surfaces of the piezoelectric chip plate, the electrode patterns face each other through the piezoelectric chip plate. At least one of the electrode patterns has an adjuster pattern which includes a narrow cutting pattern and a separation pattern which is connected to the electrode pattern through the cutting pattern and which faces the other electrode pattern.
摘要翻译： 一种压电谐振器芯片，其包括形成在压电片片的相对表面上的压电片片和一对电极图案，电极图案通过压电片片彼此面对。 电极图案中的至少一个具有包括窄切割图案的调节器图案和通过切割图案连接到电极图案并且面对另一个电极图案的分离图案。
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公开(公告)号：US4426595A
公开(公告)日：1984-01-17
申请号：US341683
申请日：1982-01-22
申请人： Kuninori Kawaura , Sumio Yamada , Noboru Wakatsuki , Masaaki Ono , Shigeo Tanji , Yoshiro Fujiwara , Masanobu Yanagisawa
发明人： Kuninori Kawaura , Sumio Yamada , Noboru Wakatsuki , Masaaki Ono , Shigeo Tanji , Yoshiro Fujiwara , Masanobu Yanagisawa
CPC分类号： H03H9/02842 , H03H9/02866
摘要： An acoustic surface wave device comprises a piezoelectric substrate (1), an input transducer (2), an output transducer (3) and acoustical absorbent layer patterns (5, 6) for absorbing undesired acoustic surface waves and bulk waves (S.sub.4, S.sub.5). Each of the acoustical absorbent layer patterns (5, 6) has zigzag-shaped or triangular shaped edges, i.e., a recess portion (R.sub.1, R.sub.3) and a protruding portion (R.sub.2, R.sub.4). The recess portion has a further recess portion (R.sub.1 ', R.sub.3 ') which is formed diagonally with respect to the propagation path of acoustic surface waves.
摘要翻译： 声表面波装置包括用于吸收不需要的声表面波和体波的压电基片（1），输入换能器（2），输出换能器（3）和吸声层图案（5,6） 。 每个吸声层图案（5,6）都具有锯齿状或三角形边缘，即凹部（R1，R3）和突出部分（R2，R4）。 凹部具有相对于声表面波的传播路径对角地形成的另一凹部（R1'，R3'）。
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公开(公告)号：US4454444A
公开(公告)日：1984-06-12
申请号：US467810
申请日：1983-02-18
CPC分类号： H03H9/02031 , H03H9/02157 , H03H9/177
摘要： A piezoelectric resonator which resonates in thickness shear mode. The piezoelectric resonator includes a strip shaped resonance chip made of an X-cut plate of lithium tantalate crystal and having a rectangular cross-section. Electrodes are formed at the center portion with respect to the longitudinal direction of the resonance chip on each of two X-plane surfaces. The width of the electrodes is equal to the width of the resonance chip. The longitudinal direction of the resonance chip inclines with respect to the Y-axis by an angle of 50.degree..+-.2' in the clockwise direction in the X-plane so as to make the longitudinal direction of the resonance chip coincide with the displacement direction of primary oscillation of the crystal. Optimal ratios of the dimensions of the resonance chip and terminal connectors at the ends of the resonance chip are given to reduce spurious response. The temperature characteristic is optimized by selecting rotation angles about the Y-and Z-axes in relation to the amount of trapped energy.
摘要翻译： 一种在厚度剪切模式下谐振的压电谐振器。 压电谐振器包括由钽酸锂晶体的X切割板制成并具有矩形横截面的带状共振芯片。 在两个X平面中的每一个上，相对于谐振芯片的纵向的中心部形成电极。 电极的宽度等于谐振芯片的宽度。 谐振芯片的纵向方向在X平面中沿着顺时针方向相对于Y轴倾斜50度+/- 2'的角度，以使谐振芯片的纵向方向与位移一致 晶体主振荡方向。 谐振芯片端部的谐振芯片和端子连接器的尺寸的最佳比例被给出以减少杂散响应。 通过相对于被捕获能量的量选择关于Y轴和Z轴的旋转角来优化温度特性。
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公开(公告)号：US4420730A
公开(公告)日：1983-12-13
申请号：US314430
申请日：1981-10-23
申请人： Noboru Wakatsuki , Yuji Kojima , Masaaki Ono
发明人： Noboru Wakatsuki , Yuji Kojima , Masaaki Ono
CPC分类号： H03H9/76 , H03H9/02795 , H03H9/1452 , H03H9/1455 , H03H9/14573 , H03H9/6479 , H03H9/6496 , H03H9/72 , H03H9/02992 , H03H9/14547
摘要： A surface acoustic wave filter which comprises: a substrate of piezoelectric material; a multistrip coupler for changing the track of a signal comprising a plurality of parallel conductive strips; at least two transducers disposed on one side of the multistrip coupler; at least another two transducers disposed on the other side of the multistrip coupler. The latter two transducers facing the former two transducers. One pair of the transducers which face each other through the multistrip coupler constitutes input transducers while the other pair of the transducers constitutes output transducers.
摘要翻译： 一种表面声波滤波器，包括：压电材料的基板; 用于改变包括多个平行导电条的信号的轨迹的多段耦合器; 至少两个换能器设置在所述多段耦合器的一侧上; 至少另外两个换能器设置在多段耦合器的另一侧上。 后两个传感器面对前两个传感器。 通过多段耦合器彼此面对的一对换能器构成输入换能器，而另一对换能器构成输出换能器。
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公开(公告)号：US5049809A
公开(公告)日：1991-09-17
申请号：US180120
申请日：1988-04-11
申请人： Noboru Wakatsuki , Shigemi Kurashima , Nobuyoshi Shimizu , Michiko Endoh , Yuji Kojima , Akira Tanaka , Hideaki Yoda
发明人： Noboru Wakatsuki , Shigemi Kurashima , Nobuyoshi Shimizu , Michiko Endoh , Yuji Kojima , Akira Tanaka , Hideaki Yoda
CPC分类号： H01L43/08 , G01R15/205
摘要： A sensing device for measuring electric current and electric power including a plurality of magneto-electric transducers for detecting a magnetic field about a conductor carrying the electric current. The magneto-electric transducers can include Barber-Pole type elements, each element being positioned on a substrate at approximately the same distance from the central point of a substrate.
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8.发明授权Piezoelectric transformer producing an output A.C. voltage with reduced distortion 失效压电变压器产生输出交流电压，具有减小的失真
公开(公告)号：US5371430A
公开(公告)日：1994-12-06
申请号：US57500
申请日：1993-05-06
申请人： Masuji Sato , Noboru Wakatsuki , Masanori Ueda , Hiroshi Hasegawa
发明人： Masuji Sato , Noboru Wakatsuki , Masanori Ueda , Hiroshi Hasegawa
IPC分类号： H01L41/107 , H01L41/08
CPC分类号： H01L41/107
摘要： A piezoelectric transformer comprises a piezoelectric substrate carrying thereon an input electrode structure provided on an upper major surface of the piezoelectric substrate for receiving an a.c. voltage for causing an excitation of an elastic wave in the substrate such that the elastic wave propagates through the substrate in a longitudinal direction, an output electrode structure provided on a lower major surface of the piezoelectric substrate for producing an output a.c. voltage by converting the elastic wave into an electric voltage, wherein the input electrode structure and the output electrode structure have a periodical structure in the longitudinal direction with a pitch corresponding to a wavelength of the elastic wave, and wherein at least one of the first and second electrode structures extend in the longitudinal direction from the first longitudinal edge to the second longitudinal edge substantially continuously.
摘要翻译： 一种压电变压器包括一个压电基板，其上带有一个输入电极结构，该输入电极结构设置在压电基板的上主表面上，用于接收一个直流电压。 使弹性波沿着纵向传播通过基板的输出电压结构的输出电极结构的输出电压结构的输出电极结构。 通过将弹性波转换成电压，其中，所述输入电极结构和所述输出电极结构在纵向方向上具有对应于所述弹性波的波长的间距的周期性结构，并且其中，所述第一和 第二电极结构基本上连续地从第一纵向边缘延伸到第二纵向边缘。
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公开(公告)号：US20060128177A1
公开(公告)日：2006-06-15
申请号：US11281949
申请日：2005-11-18
IPC分类号： H05K1/00
CPC分类号： H01H9/40 , H01H1/0036 , H01H9/42
摘要： An electrical contact device (X1) includes a first contactor with contact portions (C1, C2) and a second contactor with contact portions (C3, C4). The device (X1) also includes an electrical circuit having a branch path (YA) provided by the contact portions (C1, C3) and a branch path (YB) provided by the contact portions (C2, C4). When closed, the branch path (YA) has a smaller resistance, and the branch path (YB) a greater resistance. In a closing operation, the first and second contactors approach each other. Then the contact portion (C1) and the contact portion (C3) contact with each other after the contact portion (C2) and the contact portion (C4) contact with each other. In an opening operation, the first and second contactors separate from each other. Then the contact portion (C1) and the contact portion (C3) separate after the contact portion (C2) and the contact portion (C4) separate.
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公开(公告)号：US07053739B2
公开(公告)日：2006-05-30
申请号：US10725573
申请日：2003-12-03
IPC分类号： H01H9/30
CPC分类号： H01H9/42 , H01H1/0036 , H01H9/40 , H01H2001/0057
摘要： An electrical contacting device includes a plurality of current paths connected in parallel to each other, and a plurality of electrical contact points each having a first contact and a second contact that are mechanically opened and closed. Each current path is provided with a corresponding one of the contact points. For prevention of the occurrence of arc discharge at the contact points, each current path has its electrical characteristics adjusted in order not to allow the passage of the minimum discharge current.
摘要翻译： 电接触装置包括彼此并联连接的多个电流路径，以及多个电接触点，每个电接触点具有机械地打开和关闭的第一接触和第二接触。 每个电流路径都设有相应的一个接触点。 为了防止在接触点处发生电弧放电，每个电流路径的电特性被调整以便不允许最小放电电流通过。
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