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19 条记录 (耗时 0.02 秒)

    Ultrasonic transducer and ultrasonic flowmeter
    2.
    发明授权
    Ultrasonic transducer and ultrasonic flowmeter 有权
    超声波换能器和超声波流量计

    公开(公告)号：US06604433B1

    公开(公告)日：2003-08-12

    申请号：US09633808

    申请日：2000-08-07

    申请人： Naoko Azuma ,  Akihisa Adachi ,  Masahiko Hashimoto ,  Tooru Ninomiya ,  Kenzo Ohji

    发明人： Naoko Azuma ,  Akihisa Adachi ,  Masahiko Hashimoto ,  Tooru Ninomiya ,  Kenzo Ohji

    IPC分类号： G01F166

    CPC分类号： G01F1/662 ,  G01F1/667

    摘要： The present invention provides an ultrasonic transducer having uniform characteristics. Because the characteristics of a pair of ultrasonic transducer are equalized with each other, measuring accuracy of an ultrasonic flowmeter can be improved. Electrical connection from an electrode surface 13 of a piezoelectric body 11 to an external electrode is achieved not by soldering but by an electroconductive elastic body 16. As a result, variations of the frequency characteristics due to thermal load on the piezoelectric body 11 can be reduced, and this makes it possible to obtain an ultrasonic transducer with uniform characteristics, and measuring accuracy of an ultrasonic flowmeter using a pair of the ultrasonic transducer can be improved.

    摘要翻译： 本发明提供一种具有均匀特性的超声换能器。 由于一对超声波换能器的特性相互一致，所以能够提高超声波流量计的精度。 从压电体11的电极表面13到外部电极的电连接不是通过焊接而是通过导电弹性体16实现的。结果，可以减小由于压电体11上的热负荷引起的频率特性的变化 可以获得具有均匀特性的超声波换能器，并且可以提高使用一对超声波换能器的超声波流量计的测量精度。

    Temperature sensor
    4.
    发明授权
    Temperature sensor 失效
    温度感应器

    公开(公告)号：US5176451A

    公开(公告)日：1993-01-05

    申请号：US724562

    申请日：1991-06-28

    申请人： Katsumi Sasada ,  Kenzo Ohji ,  Yasukiyo Ueda

    发明人： Katsumi Sasada ,  Kenzo Ohji ,  Yasukiyo Ueda

    IPC分类号： G01K1/08 ,  A47J27/00 ,  A47J36/00 ,  F24C3/12 ,  F27D21/00 ,  G01K7/02 ,  G01K7/04 ,  G01K9/00

    CPC分类号： G01K7/04 ,  F24C3/126

    摘要： A temperature sensor for use in a heating apparatus is disclosed. The temperature sensor includes a rigid cylindrical body and upper and lower plates disposed at one end of the rigid cylindrical body. A first electrical insulator is interposed between the upper and lower plates and has a recess filled with a second electrical insulator, in which a hot junction of a thermocouple is buried. Since the respective components are just in contact with each other without any bonding therebetween, there arises no stress in the temperature sensor even at high temperatures. Furthermore, even if a short circuit occurs in the thermocouple, data indicating the short circuit is output from the temperature sensor to the control system of the heating apparatus, thereby assuring safety in the operation of the heating apparatus.

    Oxygen sensor and method of making such sensor
    5.
    发明授权
    Oxygen sensor and method of making such sensor 失效
    氧传感器和制造这种传感器的方法

    公开(公告)号：US4808293A

    公开(公告)日：1989-02-28

    申请号：US135093

    申请日：1987-12-18

    申请人： Hiroshi Fukuda ,  Takeshi Nagai ,  Kenzo Ohji

    发明人： Hiroshi Fukuda ,  Takeshi Nagai ,  Kenzo Ohji

    IPC分类号： G01N27/00 ,  G01N27/26 ,  G01N27/28 ,  G01N27/407 ,  G01N27/413 ,  G01N27/416 ,  G01N27/58

    CPC分类号： G01N27/4071

    摘要： An oxygen conductive solid electrolyte plate has first and second opposite surfaces, First and second electrodes fixedly extend on the first and second surfaces of the electrolyte plate respectively. A spacing frame hermetically secured to the first surface of the electrolyte plate surrounds the first electrode. The spacing frame has an opening. A sealing plate hermetically secured to the spacing frame defines a chamber in conjunction with the electrolyte plate and the spacing frame. The chamber accommodates the first electrode and opens into an environment only via a window defined by the opening in the spacing frame. The window allows oxygen molecules to flow from the environment into the chamber by diffusion.

    Optical switch
    6.
    发明授权
    Optical switch 失效
    光开关

    公开(公告)号：US4715680A

    公开(公告)日：1987-12-29

    申请号：US667480

    申请日：1984-10-05

    申请人： Takao Kawaguchi ,  Hideaki Adachi ,  Kentaro Setsune ,  Kenzo Ohji ,  Kiyotaka Wasa

    发明人： Takao Kawaguchi ,  Hideaki Adachi ,  Kentaro Setsune ,  Kenzo Ohji ,  Kiyotaka Wasa

    IPC分类号： G02F1/055 ,  G02F1/313 ,  G02B6/00

    CPC分类号： G02F1/3137 ,  G02F1/0553

    摘要： An optical switch usable for an optical circuit adapted to be operated by utilizing the electro-optical effect inherent therein. A pair of electrodes are arranged in spaced relation on an optical wave guide which is branched to branch optical wave guides and transmission of light beams is controlled by applying a certain voltage to the electrodes. Both the optical wave guide and the branch optical wave guides are made of electro-optical material. Specifically, the optical wave guides are constituted by a layer of PLZT ((Pb, La) (Zr, Ti) O.sub.3) based thin film which is formed by epitaxial growth on a base plate located on the C-plane of sapphire (.alpha.-alumina). The switch is effective for controlling the transmission of light beams.

    摘要翻译： PCT No.PCT / JP84 / 00039 Sec。 371日期1984年10月5日 102（e）日期1984年10月5日PCT提交1984年2月10日PCT公布。 出版物WO84 / 03155 日期1984年8月16日。一种可用于适于通过利用其中固有的电光效应来操作的光学电路的光学开关。 一对电极以分支的方式布置在光波导上，分支到分支光波导，并且通过向电极施加一定电压来控制光束的透射。 光波导和分支光波导均由电光材料制成。 具体地说，光波导由PLZT（（Pb，La）（Zr，Ti）O 3）基薄膜构成，该薄膜是通过在位于蓝宝石的C面（α - 氧化铝）。 该开关对于控制光束的传输是有效的。

    Automatic weight detecting device
    9.
    发明授权
    Automatic weight detecting device 失效
    自动重量检测装置

    公开(公告)号：US4875533A

    公开(公告)日：1989-10-24

    申请号：US216497

    申请日：1988-07-08

    申请人： Makoto Mihara ,  Masanobu Inoue ,  Kenzo Ohji ,  Shuji Itou

    发明人： Makoto Mihara ,  Masanobu Inoue ,  Kenzo Ohji ,  Shuji Itou

    IPC分类号： G01G3/08 ,  G01G7/06 ,  G01G19/52 ,  G01G19/56 ,  G01G21/23 ,  G01G21/30 ,  G01G23/02 ,  H05B6/80

    CPC分类号： H05B6/6411 ,  G01G19/56 ,  G01G21/23 ,  G01G7/06 ,  H05B6/6464

    摘要： An automatic weight detecting device is provided with a platform on which an object to be measured is placed, a supporting shaft for supporting the platform is rotatable and smoothly movable in the supporting direction. A driving motor rotates the supporting shaft, and an elastic member supports the supporting shaft. A load detecting device converts the load of the object, transmitted in the supporting direction of the rotatable supporting shaft through the elastic member into a given electrically physical amount and a weight detecting circuit integrates to obtain the average of the electrically physical amount while the shaft rotates, so that the weight of the object is detected.

    摘要翻译： 一种自动重量检测装置，其具有放置有被测定物的平台，支撑所述平台的支撑轴，其能够在支撑方向上旋转并平稳移动;驱动机构，其使所述支撑轴旋转;弹性部件 用于支撑所述支撑轴的载荷检测装置，其将通过所述弹性构件在所述可旋转支撑轴的支撑方向上传递的物体的载荷转换成给定的电学物理量;以及重量检测电路， 旋转时的电物理量的平均值，从而检测物体的重量。

    Surface acoustic wave resonator
    10.
    发明授权
    Surface acoustic wave resonator 失效
    表面声波谐振器

    公开(公告)号：US4223286A

    公开(公告)日：1980-09-16

    申请号：US940510

    申请日：1978-09-05

    申请人： Shusuke Ono ,  Kenzo Ohji ,  Osamu Yamazaki ,  Kiyotaka Wasa

    发明人： Shusuke Ono ,  Kenzo Ohji ,  Osamu Yamazaki ,  Kiyotaka Wasa

    IPC分类号： H03H3/08 ,  H03H9/02 ,  H03H9/145 ,  H03H9/20 ,  H01L41/10 ,  H01L41/18 ,  H03H9/32

    CPC分类号： H03H9/02834 ,  H03H9/02574 ,  H03H9/02779 ,  H03H9/14541

    摘要： A surface acoustic wave resonator includes a base plate made of glass and a layer of piezoelectric material which has a plurality of strips extending parallel to each other for forming a reflector. A surface acoustic wave excited from a transducer reflects at each of the strips. The reflectance of such surface acoustic wave is improved by the arrangement of the strips and the thickness of the layer. On the other hand, the temperature coefficient of the resonance frequency is also improved by the arrangement of the strips and the thickness of the layer, and by the amount of the alkali metal oxide contained in the base plate, and further by the thickness of silicon oxide film laminated on the surface of the base plate.

    摘要翻译： 表面声波谐振器包括由玻璃制成的基板和具有彼此平行延伸以形成反射器的多个条带的压电材料层。 从换能器激发的表面声波在每个条上反射。 这种表面声波的反射率通过条带的布置和层的厚度得到改善。 另一方面，共振频率的温度系数也通过条的排列和层的厚度以及基板中所含的碱金属氧化物的量以及硅的厚度而得到改善 氧化膜层叠在基板的表面上。