专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明授权

US4438417A Filter circuit utilizing a surface acoustic wave filter 失效
标题翻译：滤波电路利用表面声波滤波器
公开(公告)号：US4438417A
公开(公告)日：1984-03-20
申请号：US274426
申请日：1981-06-17
申请人： Kiyofumi Yamashita , Toshikazu Kodama
发明人： Kiyofumi Yamashita , Toshikazu Kodama
IPC分类号： H03H9/00 , H03H9/02 , H03H9/05 , H03H9/10 , H03H9/145 , H03H9/125 , H03H9/64
CPC分类号： H03H9/14597 , H03H9/02629 , H03H9/1071 , H03H9/1452 , H03H9/02637
摘要： A filter circuit having a surface acoustic wave filter device which includes a piezoelectric substrate and the input and output transducers disposed on the surface of the substrate, an inductance element connected with the input or output transducer, and, a variable resistor connected in parallel with the inductance element for adjusting the Q-factor value of a resonant circuit comprising the inductance element and capacitance of the surface acoustic wave filter device.
摘要翻译：一种具有表面声波滤波器装置的滤波器电路，包括压电基片和布置在基片表面上的输入和输出换能器，与输入或输出换能器连接的电感元件，以及与电感元件，用于调节包括电感元件的谐振电路的Q因子值和表面声波滤波器装置的电容。

72. 发明授权

US4302694A Composite piezoelectric tuning fork with eccentricly located electrodes 失效
标题翻译：具有偏心定位电极的复合压电音叉
公开(公告)号：US4302694A
公开(公告)日：1981-11-24
申请号：US072341
申请日：1979-09-05
申请人： Satoru Fujishima , Takeshi Nakamura
发明人： Satoru Fujishima , Takeshi Nakamura
IPC分类号： H03H9/00 , G10G7/02 , H02N2/04 , H03H9/125 , H03H9/24 , H01L41/08
CPC分类号： G10G7/02 , H03H9/125 , Y10T29/42
摘要： A piezoelectric tuning fork device comprises a plate-like tuning vibrator having a pair of prongs and a base with a slot defined between the prongs. The tuning vibrator has at least one electrode layer deposited on and overlying a piezoelectric layer formed on one of the opposed major surfaces of the tuning vibrator. The electrode layer is generally U-shaped and has a pair of opposed leg portions each so positioned as to have its longitudinal axis located to one side of the imaginary corresponding prong.
摘要翻译：压电音叉装置包括具有一对插脚的板状调谐振动器和在插脚之间限定有狭槽的基座。调谐振子具有沉积在形成在调谐振动器的相对主表面之一上的压电层上并覆盖的至少一个电极层。电极层通常为U形，并且具有一对相对的腿部，每个相对的腿部部分被定位成使得其纵向轴线位于虚拟对应插脚的一侧。

73. 发明授权

US4281298A Flexural transducer 失效
标题翻译：弯曲传感器
公开(公告)号：US4281298A
公开(公告)日：1981-07-28
申请号：US93208
申请日：1979-11-13
申请人： Takashi Gounji , Yoshihiko Kasai
发明人： Takashi Gounji , Yoshihiko Kasai
IPC分类号： B06B1/06 , H03H9/125 , H03H9/24 , H03H9/48 , H01L41/18 , H03H9/50 , H03H9/54
CPC分类号： B06B1/0603 , H03H9/125 , H03H9/24 , H03H9/48
摘要： A flexural electromechanical transducer composed of a constant-modulus alloy material and a piezoelectric ceramic material having a high electromechanical coupling coefficient. In the transducer, the piezoelectric ceramic material is polarized in one direction and a specified frequency signal is applied to the piezoelectric ceramic material in a direction parallel to the residual polarization direction of the piezoelectric material for obtaining a thickness-shear vibration. The thickness-shear vibration of the piezoelectric material in turn causes the flexural vibration of the transducer. The transducer achieves a high quality factor Q, a low capacitance ratio r, good spurious characteristics, and low impedance.
摘要翻译：一种由恒模量合金材料和具有高机电耦合系数的压电陶瓷材料组成的弯曲机电换能器。在换能器中，压电陶瓷材料沿一个方向极化，并且在与压电材料的残留极化方向平行的方向上将压缩陶瓷材料施加特定的频率信号以获得厚度 - 剪切振动。压电材料的厚度 - 剪切振动又会导致换能器的弯曲振动。传感器实现了高质量因子Q，低电容比r，良好的寄生特性和低阻抗。

74. 发明授权

US4140984A Mechanical filter 失效
标题翻译：机械过滤器
公开(公告)号：US4140984A
公开(公告)日：1979-02-20
申请号：US818019
申请日：1977-07-22
申请人： Ichiro Imaguchi
发明人： Ichiro Imaguchi
IPC分类号： H03H9/00 , H03H9/125 , H03H9/46 , H03H9/50 , H03H9/04 , H01L41/08 , H03H9/26
CPC分类号： H03H9/125 , H03H9/50
摘要： A mechanical filter including resonators, a coupler for longitudinally coupling the resonators, electro-mechanical transducers coupled to the opposite ends of the coupler, and lead wires led out from the transducers. Each of the transducers comprises a piezoelectric ceramic resonator adapted for longitudinal resonance and having electrodes attached to the opposite end faces thereof, and one of the end faces of the piezoelectric ceramic resonator is formed with a coupling hole which is located substantially on the axis thereof and extends lengthwise of the ceramic resonator. Each end of the coupler is inserted into the coupling hole with an electrically conductive adhesive to thereby couple the coupler and ceramic resonators. The aforementioned lead wires may be connected to the electrodes and wound about the piezoelectric ceramic resonators through a predetermined number of turns, and may be secured to the ceramic resonators by an adhesive having rubber-like elasticity.
摘要翻译：包括谐振器的机械滤波器，用于纵向耦合谐振器的耦合器，耦合到耦合器的相对端的机电换能器以及从换能器引出的引线。每个换能器包括适于纵向共振并且具有附接到其相对端面的电极的压电陶瓷谐振器，并且压电陶瓷谐振器的一个端面形成有基本上位于其轴线上的耦合孔，延伸到陶瓷谐振器的纵向。耦合器的每个端部用导电粘合剂插入耦合孔中，从而耦合耦合器和陶瓷谐振器。上述引线可以连接到电极，并以预定数量的匝缠绕在压电陶瓷谐振器周围，并且可以通过具有橡胶状弹性的粘合剂固定到陶瓷谐振器。

75. 发明授权

US3875409A Device for converting an input quantity of one kind into an output quantity of another kind 失效
标题翻译：将一种输入数量转换为其他类型的输出数量的设备
公开(公告)号：US3875409A
公开(公告)日：1975-04-01
申请号：US39986873
申请日：1973-09-24
申请人： PHILIPS CORP
发明人： VAN SUCHTELEN JAAP , VAN RIEN ADRIANUS M J G , VAN HOOT LEONARDUS A H
IPC分类号： B06B1/00 , C30B21/02 , G01T1/16 , G21K4/00 , H01L41/00 , H03H9/125 , H05B33/12 , G01T1/10
CPC分类号： H05B33/12 , B06B1/00 , C30B21/02 , G01T1/16 , G21K4/00 , H01L41/00 , H03H9/125
摘要： A device for converting an input quantity X (e.g. a magnetic field) into an output quantity Z (e.g. an electric field) via another quantity Y (e.g. a mechanical force) by means of a composite material consisting of a heterogenous mixture of at least two component phases which statistically periodically alternate one with another throughout the material and are in intimate contact with one another, one phase of which converts X into Y while the other phase converts Y into Z.
摘要翻译：一种用于经由另一数量Y（例如机械力）将输入量X（例如磁场）转换为输出量Z（例如，电场）的装置，该复合材料由至少两个统计学上在整个材料上周期性地交替地彼此交替并且彼此紧密接触的组分相，其一相将X转换成Y，而另一相将Y转换成Z。

76. 发明授权

US3846649A Piezoelectric transducer comprising oriented zinc oxide film and method of manufacture 失效
标题翻译：包含靶向氧化锌薄膜的压电传感器及其制造方法
公开(公告)号：US3846649A
公开(公告)日：1974-11-05
申请号：US37061673
申请日：1973-06-18
申请人： RCA CORP
发明人： LEHMANN H , WIDMER R
IPC分类号： H01L41/187 , H03H9/125 , H01V7/02 , H04R17/00
CPC分类号： H03H9/125 , H01L41/187
摘要： A transducer capable of generating shear waves at microwave frequencies in a propagation medium, comprising an oriented polycrystalline film of zinc oxide on a substrate which is a film of zinc, In2O3, or In2O3/SnO2. The zinc oxide film is deposited by rf sputtering, with the substrate surface oriented 45* with respect to the sputtering target.
摘要翻译：一种能够在传播介质中产生微波频率的剪切波的传感器，包括在作为锌，In 2 O 3或In 2 O 3 / SnO 2的膜的基底上的氧化锌取向多晶膜。氧化锌膜通过射频溅射沉积，衬底表面相对于溅射靶取向45°。

77. 发明授权

US3719907A Torsional wave transducer 失效
标题翻译：扭转波传感器
公开(公告)号：US3719907A
公开(公告)日：1973-03-06
申请号：US3719907D
申请日：1971-12-03
申请人： ZENITH RADIO CORP
发明人： ADLER R
IPC分类号： G01H1/10 , H03H9/125 , H03H9/30 , H01V7/00
CPC分类号： G01H1/10 , H03H9/125
摘要： A torsional-wave transducer is particularly suitable for use with torsional-mode delay lines. The transducer preferably takes the form of a washer-like annular disc of ferro-electric material which is electrically poled concentrically of the disc in two opposing directions. A unitary electrode is bonded to and overlies one end face of the disc. A pair of spaced driving electrodes are bonded to the opposite end face of the disc. In combination, a torsional-mode delay line in the form of an elongate hollow cylindrical tube has a pair of the transducers individually bonded to its respective opposite ends by the corresponding single electrodes. To make each transducer, a pair of narrow poling electrodes are first affixed to diametrically opposed locations on the disc, and a DC voltage then is applied across those poling electrodes. The latter are subsequently removed following which the unitary and driving electrodes are bonded in place.
摘要翻译：扭转波传感器特别适用于扭转模式延迟线。传感器优选地采用铁电材料的垫圈状环形盘的形式，其在两个相反的方向上与盘同心地电极化。一个单一的电极被粘合到盘的一个端面上并覆盖在其一个端面上。一对隔开的驱动电极结合到盘的相对端面。结合在一起的细长中空圆柱形管形式的扭转模式延迟线具有一对换能器，它们通过相应的单个电极单独地连接到其各自的相对端。为了使每个换能器，首先将一对窄极化电极固定到盘上的直径相对的位置，然后在该极化电极上施加直流电压。后者随后被去除，随后将单一和驱动电极结合到位。

78. 发明授权

US3710275A Low frequency oscillator employing a pair of u-shaped mechanical vibrators 失效
标题翻译：使用U型成形机械振动器的低频振荡器
公开(公告)号：US3710275A
公开(公告)日：1973-01-09
申请号：US3710275D
申请日：1970-11-05
申请人： SHIGERU KAKUBARI
发明人： TANAKA T , BANSHO K
IPC分类号： G04C3/08 , G04C3/12 , H03B5/32 , H03B5/36 , H03H9/125 , H03H9/24 , H03H9/48 , H03B5/30
CPC分类号： G04C3/08 , G04C3/12 , H03B5/323 , H03B5/36 , H03H9/125 , H03H9/24 , H03H9/48
摘要： A U-shaped mechanical vibrator having a pair of strip-like vibratory reeds of substantially the same configuration, and a base portion coupling together the pair of vibratory reeds at one end as a unitary structure, the width of each reed being selected greater than the thickness thereof, the vibratory reeds being arranged in a single plane including their surfaces in the widthwise direction in parallel and side-by-side relation, and the pair of vibratory reeds vibrating in anti-phase relation to each other at right angles to the single plane.
摘要翻译：具有基本相同构造的一对条状振动簧片的U形机械振动器，以及将一端的一对振动簧片作为一体结构将基座部分连接在一起的每个簧片的宽度大于其振动簧片以包括它们在宽度方向上的表面的平面和并排关系的单个平面布置，并且所述一对振动簧片以相反的方式彼此成直角地相对于单个飞机

79. 发明授权

US3659230A U-shaped mechanical vibrator 失效
标题翻译： U型机械振动器
公开(公告)号：US3659230A
公开(公告)日：1972-04-25
申请号：US3659230D
申请日：1970-11-10
申请人： SHIGERU KAKUBARI
发明人： TANAKA TETSURO , BANSHO KIYOSHI
IPC分类号： G04C3/08 , G04C3/12 , H03B5/32 , H03B5/36 , H03H9/125 , H03H9/24 , H03H9/48
CPC分类号： G04C3/08 , G04C3/12 , H03B5/323 , H03B5/36 , H03H9/125 , H03H9/24 , H03H9/48
摘要： A U-shaped mechanical vibrator having a pair of strip-like vibratory reeds of substantially the same configuration, and a base portion coupling together the pair of vibratory reeds at one end as a unitary structure, the width of each reed being selected greater than the thickness thereof, the vibratory reeds being arranged in a single plane including their surfaces in the widthwise direction in parallel and side-by-side relation, and the pair of vibratory reeds vibrating in anti-phase relation to each other at right angles to the single plane.
摘要翻译：具有基本相同构造的一对条状振动簧片的U形机械振动器，以及将一端的一对振动簧片作为一体结构将基座部分连接在一起的每个簧片的宽度大于其振动簧片以包括它们在宽度方向上的表面的平面和并排关系的单个平面布置，并且所述一对振动簧片以相反的方式彼此成直角地相对于单个飞机

80. 发明授权

US3605043A Dispersive delay line with tubular section 失效
标题翻译：具有管状部分的分散延迟线
公开(公告)号：US3605043A
公开(公告)日：1971-09-14
申请号：US3605043D
申请日：1968-03-21
申请人： CSF
发明人： BIENVENU GEORGES , TOURNOIS PIERRE , VERNET JEAN LOUIS
IPC分类号： D01H1/11 , D02J1/08 , H03H9/125 , H03H9/40 , H03H7/30 , H01V7/00 , H03H9/30
CPC分类号： D02J1/08 , D01H1/11 , Y10T428/2969 , Y10T442/30 , Y10T442/40
摘要： A dispersive delay line with a tubular waveguide wherein are axially propagated waves of sonic or ultrasonic energy corresponding both to shear and compressional modes; suitable transducers are provided at the ends of the waveguide for exciting and collecting said waves.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式