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    • 33. 发明授权
    • Liquid-sealed semiconductor pressure sensor and manufacturing method
thereof
    • 液密半导体压力传感器及其制造方法
    • US5595939A
    • 1997-01-21
    • US394300
    • 1995-02-24
    • Seiichirou OtakeYoshifumi WatanabeYukihiro Kato
    • Seiichirou OtakeYoshifumi WatanabeYukihiro Kato
    • G01L9/04G01L9/00H01L29/84H01L21/60
    • G01L19/143G01L19/0038G01L19/0084G01L19/0645H01L2224/48091H01L2224/73265
    • A liquid-sealed type semiconductor pressure sensor with no filling orifice includes a connector housing which is made of high polymer compound material of high air permeability and which has a recess and connector pins, where a main housing which has a sealing diaphragm is secured to the connector housing airtightly and a pressure sensitive element is disposed in the recess and is electrically connected to external circuitry by connector pins. A pressure detecting chamber formed between the recess and the sealing diaphragm is filled with pressure transmitting medium, such as silicone oil, having high air solubility. To manufacture the sensor, the recess is filled with a fixed volume of the pressure transmitting medium, the main housing is placed on the connector housing, and a prescribed pressure is applied to the sensor to dissolve air trapped in the pressure detecting chamber during the previous step into the transmitting medium and to purge the rest through the high polymer compound materials used in the connector housing. As a result, a non-linear pressure rise in the pressure detecting chamber can be prevented.
    • 具有无填充孔的液体密封型半导体压力传感器包括连接器壳体,该连接器壳体由高透气性的高分子复合材料制成,并且具有凹部和连接器销,其中具有密封隔膜的主壳体固定到 密封的连接器壳体和压敏元件设置在凹部中并且通过连接器销电连接到外部电路。 在凹部和密封隔膜之间形成的压力检测室,填充有高空气溶解度的压力传递介质,如硅油。 为了制造传感器,凹部填充有固定体积的压力传递介质,主壳体被放置在连接器壳体上,并且规定的压力被施加到传感器以溶解在先前的压力检测室中被捕获的空气 进入传送介质并通过连接器壳体中使用的高分子复合材料吹扫其余部分。 结果,可以防止压力检测室中的非线性压力上升。
    • 35. 发明授权
    • Pressure sensor
    • 压力传感器
    • US5000047A
    • 1991-03-19
    • US316647
    • 1989-02-28
    • Yukihiro KatoMasahiro AsaiYosihumi WatanabeTomohiro Watanabe
    • Yukihiro KatoMasahiro AsaiYosihumi WatanabeTomohiro Watanabe
    • G01L9/00
    • G01L19/003G01L19/0084G01L19/0645G01L19/143
    • This pressure sensor comprises a housing having a cavity at at least one end portion thereof, a pressure detecting element provided with the cavity and generating an electric signal corresponding to the pressure detected, a transmitter for transmitting the signal to the outside of the housing, and hermetically sealed with one end thereof connected to the pressure detecting element, a sealed medium provided within the cavity to prevent deterioration of the pressure detecting element, a diaphragm provided to cover the surface of the cavity, and a sealing element for sealing the sealed medium within the cavity and provided in a portion connected to the cavity of the housing, and further, a sealing ability of either the hermetic seal portion of the transmitter or of the sealing element is improved by utilizing a back pressure of a pressure medium. The sealing ability is improved by either making both surfaces of a diaphragm and of a sealing element form a common surface of the housing, by forming a grooved portion surrounding the hermetic terminal, or by attenuating the diameter of the top end portion of the housing. Leakage of the sealing liquid from the hermetic terminal or the sealing element is thus effectively prevented, and the reliability of the mechanical strength of the connecting portion of the housing and the device on which the housing is installed is improved, and thus a high reliability semiconductor pressure sensor to be used for detecting the pressure of a high pressure medium can be obtained.
    • 该压力传感器包括在其至少一个端部处具有空腔的壳体,设置有空腔并产生对应于所检测的压力的电信号的压力检测元件,用于将信号传输到壳体的外部的发射器,以及 气密密封,其一端连接到压力检测元件,密封介质,设置在腔内以防止压力检测元件的劣化,设置成覆盖空腔表面的隔膜;以及用于密封密封介质的密封元件 并且设置在与壳体的空腔相连的部分中,并且通过利用压力介质的背压来改善发射器或密封元件的气密密封部分的密封能力。 通过将隔膜的两个表面和密封元件形成外壳的共同表面,通过形成围绕密封端子的开槽部分,或者通过减小外壳的顶端部分的直径来提高密封能力。 因此,能够有效地防止来自密封端子或密封元件的密封液的泄漏,并且壳体的连接部和安装壳体的装置的机械强度的可靠性提高,因此高可靠性半导体 可以获得用于检测高压介质的压力的压力传感器。
    • 36. 发明授权
    • Semiconductor pressure transducer
    • 半导体压力传感器
    • US4843454A
    • 1989-06-27
    • US934847
    • 1986-11-25
    • Yukihiro KatoHiroshi OkadaYoshifumi WatanabeOsamu InaOsamu ItoIwao Yokomori
    • Yukihiro KatoHiroshi OkadaYoshifumi WatanabeOsamu InaOsamu ItoIwao Yokomori
    • G01L9/00
    • G01L19/0061G01L19/142
    • A semiconductor pressure transducer comprises a metal housing having a cylindrical recess to which an inlet passage of a medium to be measured is opened, a glass base being received in the recess and having a large diameter cylindrical portion and a small diameter cylindrical portion integrally connected to the large diameter cylindrical portion, a rubber O-ring interposed between a bottom of the recess and the base, a metal tubular collar disposed in the recess around the base to come into contact with the bottom of the recess, the collar urged by a caulked portion of the housing to press the base, a sensor chip provided on an end of the small diameter cylinder of the base for generating an electric signal in response to pressure of said medium, an annular clearance provided between the collar and the base, and an introducing passage provided in the base for introducing the medium from the inlet passage to the sensor chip.
    • 半导体压力传感器包括具有圆柱形凹部的金属壳体,待测量介质的入口通道打开到其上,玻璃基座被容纳在凹部中,并且具有大直径的圆柱形部分和小直径圆柱形部分,其一体地连接到 大直径的圆筒部分,插入在凹部的底部和基部之间的橡胶O形环,设置在凹部周围的金属管状颈圈以与凹部的底部接触,由铆接部 所述壳体的一部分按压所述基座,设置在所述基座的所述小直径圆筒的端部上的传感器芯片,用于响应于所述介质的压力产生电信号,设置在所述套环和所述基座之间的环形间隙,以及 引导通道,其设置在基座中,用于将介质从入口通道引入传感器芯片。
    • 37. 发明授权
    • Automatic focus control system for video camera
    • 摄像机自动对焦控制系统
    • US4609944A
    • 1986-09-02
    • US613571
    • 1984-05-24
    • Yasuo NakadaYukihiro Kato
    • Yasuo NakadaYukihiro Kato
    • G02B7/28G02B7/38H04N5/232H04N5/238
    • G02B7/38H04N5/23212
    • An automatic focus control system for a video camera comprises a main optical system for conducting light from an object and including an adjustable diaphragm for adjusting the amount of light conducted therethrough, a beam splitter disposed in the main optical system for diverting a portion of the light from the main optical system into an optical subsystem which has a second adjustable diaphragm for adjusting the amount of light conducted through the optical subsystem, a converter for converting the portion of the light diverted through the optical subsystem into focusing signals, and an automatic focus control circuit including a contrast detecting circuit for detecting a focused state of the light from the object in response to the focusing signals.
    • 一种用于摄像机的自动对焦控制系统包括:用于传导来自物体的光的主光学系统,包括用于调节穿过其中的光量的可调节光阑;设置在主光学系统中的用于将一部分光转向的分束器 从主光学系统到具有用于调节通过光学子系统传导的光量的第二可调节光阑的光学子系统,用于将通过光学子系统转移的光的部分转换成聚焦信号的转换器,以及自动对焦控制 包括对比度检测电路,用于响应于聚焦信号检测来自物体的光的聚焦状态。
    • 40. 发明授权
    • Angle detecting apparatus
    • 角度检测装置
    • US07495432B2
    • 2009-02-24
    • US12081854
    • 2008-04-22
    • Yukihiro KatoMasashi MomiyamaNoriaki Fujita
    • Yukihiro KatoMasashi MomiyamaNoriaki Fujita
    • G01B7/30G01R33/07
    • G01D5/245
    • An angle detection apparatus includes a rotation member including at least one north magnetic polar region and at least one south magnetic polar region alternately arranged around a rotation center, a magnetic field detecting portion having a magnetic plate and detecting elements detecting magnitudes of magnetic components in a direction perpendicular to the magnetic plate, and a computing unit determining a rotation angle of the rotation member, wherein the magnetic field detecting portion is disposed so that the magnetic plate is oriented perpendicular to a first direction, where magnetic field intensity is at its maximum, and the magnetic field detecting portion detects the magnitudes of the magnetic components in the first direction and a second direction corresponding to a direction that the north and south magnetic polar regions are circumferentially arranged.
    • 角度检测装置包括旋转构件,该旋转构件包括至少一个北极性区域和围绕旋转中心交替布置的至少一个南极性极区域,具有磁性板的磁场检测部分和检测元件中的磁性成分的检测元件 以及计算单元,其确定所述旋转构件的旋转角度,其中所述磁场检测部分设置成使得所述磁性板垂直于磁场强度处于其最大值的第一方向定向, 并且磁场检测部分检测第一方向上的磁性分量的大小和与北极和南极极区域周向布置的方向相对应的第二方向。