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27 条记录 (耗时 0.026 秒)

    Air-to-fuel ratio sensor for an automobile
    11.
    发明公开
    Air-to-fuel ratio sensor for an automobile 失效
    Luft- /Kraftstoffverhältnis-Detektorfürein Automobil。

    公开(公告)号：EP0190750A1

    公开(公告)日：1986-08-13

    申请号：EP86101518.8

    申请日：1986-02-06

    申请人： HITACHI, LTD.

    发明人： Suzuki, Seiko ,  Sasayama, Takao ,  Miki, Masayuki

    IPC分类号： G01N27/416

    CPC分类号： G01N27/4065

    摘要： An air-to-fuel ratio sensor comprising a detecting part constituted by a zirconia solid electrolyte, (20) a first electrode (22) formed on the atmosphere side of said solid electrolyte, a second electrode (23) formed on the exhaust side of said solid electrolyte and a diffusion-resistant body (24) formed on said second electrode and a driving circuit (29) which drives said detecting part, wherein an electric potential of said second electrode is predetermined to be higher than a ground level (26) of said driving circuit and an exciting voltage is subjected to feed-back control by said driving circuit. (29)

    摘要翻译： 一种空气 - 燃料比传感器，包括由氧化锆固体电解质构成的检测部，（20）形成在所述固体电解质的气氛侧的第一电极（22），形成在所述固体电解质的排气侧的第二电极 所述固体电解质和形成在所述第二电极上的扩散阻挡体（24）和驱动所述检测部分的驱动电路（29），其中所述第二电极的电位被预定为高于地电平（26） 的所述驱动电路和激励电压由所述驱动电路进行反馈控制。 （29）

    Air-fuel ratio detector
    12.
    发明公开
    Air-fuel ratio detector 失效
    感测所述空气 - 燃料比。

    公开(公告)号：EP0173157A1

    公开(公告)日：1986-03-05

    申请号：EP85110101.4

    申请日：1985-08-12

    申请人： HITACHI, LTD.

    发明人： Suzuki, Seiko ,  Miki, Masayuki ,  Sasayama, Takao ,  Suzuki, Toshitaka ,  Satou, Nobuo ,  Ueno, Sadayasu ,  Ikegami, Akira

    IPC分类号： G01N27/56

    CPC分类号： G01N27/4065

    摘要： An air-fuel ratio in the lean range is detected by measuring a limiting current when oxygen diffused to a first electrode (123; 2; 51) is pumped to a second electrode (124; 3; 52) via a solid electrolyte. A stoichiometric air-fuel ratio is detected from electromotive force between first (123; 2; 51) and third electrodes (126; 6; 53) when oxygen is pumped from the first electrode (123; 2; 51) to the third electrode (126; 6; 53). The invention is characterized by use of such three electrodes. Furthermore, an air-fuel ratio in a rich range is detected by either sending oxygen from the first electrode (123; 2; 51) to the third electrode (126; 6; 53) via the solid electrolyte (127; 1; 50) and measuring a current when the electromotive force between the first and third electrodes is controlled to be constant, or measuring a current when the air-fuel ratio range is judged as "rich" from this electromotive force and the polarity of the impressed voltage at the time of lean detection is reversed.

    Physical quantity detecting apparatus and internal combustion engine control apparatus each utilizing optical fiber
    15.
    发明公开
    Physical quantity detecting apparatus and internal combustion engine control apparatus each utilizing optical fiber 失效
    一种用于检测物理量，及控制装置用于内燃机，无论使用光纤装置。

    公开(公告)号：EP0622622A2

    公开(公告)日：1994-11-02

    申请号：EP94106416.4

    申请日：1994-04-25

    申请人： HITACHI, LTD.

    发明人： Komachiya, Masahiro ,  Oho, Shigeru ,  Shimada, Satoshi ,  Suzuki, Seiko ,  Sasayama, Takao ,  Takahashi, Minoru ,  Kurita, Masahiro

    IPC分类号： G01L23/16 ,  G01L23/22

    CPC分类号： G01L23/22 ,  F02F11/002 ,  G01L23/16

    摘要： A physical quantity detecting apparatus comprises at least one optical fiber (3; 500), at least one light emitting means (1) for emitting an incident light beam on the optical fiber, at least one light receiving means (5) for detecting an outgoing light beam from the optical fiber, physical quantity applied position information generating means (14) for providing information indicative of a position of a portion at which a physical quantity is applied to the optical fiber, and operation means (12; 12a) for receiving signals from the light receiving means and physical quantities applied position information generating means and calculating a change with time in physical quantity at respective positions on the optical fiber.

    摘要翻译： 压力检测装置安装在内燃机的汽缸盖垫片包括至少一个光纤（3; 500），至少一个光发射装置（1），用于发射入射光束在光纤，和至少一个 光接收装置（5），用于从检测光纤的出射光束。 一种位置信息生成装置（14）在沿所述光纤位点的多元提供表示所施加的压力的位置的信息。 的操作装置（12; 12B）计算在从接收到的位置信息和测得的压力的respectivement光纤的位置随时间的压力的改变。 因此，不同的物理量（例如温辐射，压力）可以通过同时在多个位置处的一个单纤维通过使用不同的偏振模式感测。

    Semiconductor acceleration sensor and vehicle control system using the same
    16.
    发明公开
    Semiconductor acceleration sensor and vehicle control system using the same 失效
    Halbleiterbeschleunigungsmesser und Kraftfahrzeugsteuerungssystemdafür。

    公开(公告)号：EP0459723A2

    公开(公告)日：1991-12-04

    申请号：EP91304732.0

    申请日：1991-05-24

    申请人： HITACHI, LTD. ,  HITACHI AUTOMOTIVE ENGINEERING CO., LTD.

    发明人： Tsuchitani, Shigeki ,  Suzuki, Seiko ,  Miki, Masayuki ,  Tanaka, Tomoyuki ,  Matsumoto, Masahiro ,  Ichikawa, Norio ,  Ebine, Hiromichi ,  Sugisawa, Yukiko ,  Sato, Kanemasa ,  Ueno, Sadayasu ,  Asano, Yasuhiro ,  Kubota, Masanori ,  Suzuki, Masayoshi

    IPC分类号： G01P15/125 ,  G01P1/00 ,  G01P15/13

    CPC分类号： G01P15/125 ,  G01P1/003 ,  G01P15/131 ,  G01P2015/0828

    摘要： A semiconductor acceleration sensor (1) is formed by a cantilever (4) having a conductive movable electrode (5) of predetermined mass at one end, at least one pair of fixed conductive electrodes (8, 9) which are stationary with respect to the movable electrode (5) located on opposing sides of the movable electrode, and gaps provided between the movable electrode and the fixed electrodes. To prevent the movable electrode becoming fused to the contacted fixed electrode, in a first aspect of this invention, an insulating layer (6) is provided between the movable electrode and fixed electrodes, the layer being either on the movable electrode or on the fixed electrodes and in a second aspect of this invention the movable electrode or, preferably, the fixed electrodes, are formed of a high melting point material. In such a second aspect, to improve adhesion between the high melting point material and a substrate (3a, 3b) to which the fixed electrodes (8′, 9′) are mounted, a lower melting point material is firstly coated on said substrates. In a feature of the invention, a detector unit processing circuit (Figure 20) is described in which the output characteristic of the circuit may be digitally adjusted by suitable switching of a plurality of resistors (Rs, Rf), and in a second feature, the sensor chip and the detector unit integrated circuit are located on a common base (303) and mounted in a hermetically sealed chamber to prevent adverse environmental effects affecting operation of the sensor and detector unit assembly. A gas having a dew point of -40°C or lower is, advantageously, charged into the hermetically sealed chamber.

    摘要翻译： 半导体加速度传感器（1）由具有在一端具有预定质量的导电可移动电极（5）的悬臂（4）形成，至少一对固定导电电极（8,9）相对于 位于可动电极的相对侧的可动电极（5）以及设置在可动电极和固定电极之间的间隙。 为了防止可动电极与被接触的固定电极熔合，在本发明的第一方面中，在可动电极和固定电极之间设置绝缘层（6），该层位于可动电极上或固定电极上 在本发明的第二方面中，可动电极，优选地，固定电极由高熔点材料形成。 在这样的第二方面，为了提高高熔点材料与安装有固定电极（8分钟，9分钟）的基板（3a，3b）之间的粘附性，首先在所述基板上涂覆较低熔点的材料。 在本发明的特征中，描述了一种检测器单元处理电路（图20），其中电路的输出特性可以通过多个电阻器（Rs，Rf）的适当切换来数字地调节，并且在第二特征中， 传感器芯片和检测器单元集成电路位于公共基座（303）上并且安装在气密密封的室中，以防止影响传感器和检测器单元组件的操作的不利的环境影响。 将露点为-40℃以下的气体有利地装入密封室内。

    Capacitance type accelerometer and method of manufacturing the same
    17.
    发明公开
    Capacitance type accelerometer and method of manufacturing the same 失效
    Kapazitiver Beschleunigungsmesser und Verfahren zu seiner Herstellung。

    公开(公告)号：EP0369352A1

    公开(公告)日：1990-05-23

    申请号：EP89120880.3

    申请日：1989-11-10

    申请人： HITACHI, LTD.

    发明人： Suzuki, Seiko ,  Tsuchitani, Shigeki ,  Miki, Masayuki ,  Matsumoto, Masahiro

    IPC分类号： G01P15/125

    CPC分类号： B81C1/00301 ,  B81B2201/0235 ,  B81B2207/095 ,  B81B2207/096 ,  G01P15/0802 ,  G01P15/125 ,  G01P15/131 ,  G01P2015/0828

    摘要： The invention relates to a capacitance type accelerometer and a method of manufacturing the same. The capacitance type accelerometer has a first silicon plate (2,7) formed as having a movable electrode part (7) which is moved according to acceleration, two second silicon plates (1, 3) which are disposed on both sides of the first silicon plate with a certain separation distance, and thermal oxide films (4, 5) which are respectively disposed between the first silicon plate except the movable electrode part (7) and the two second silicon plates (1, 3) and stick the first silicon plate (2) except the movable electrode and the two second silicon plates together. The process of manufacturing the capacitance type accelerometer is made by processing and cutting a wafer by dicing saw without coming into the accelerometer of cutting chips or cutting water.

    摘要翻译： 本发明涉及电容式加速度计及其制造方法。 电容型加速度计具有形成为具有根据加速度移动的可动电极部分（7）的第一硅板（2,7），设置在第一硅层两侧的两个第二硅板（1,3） 并且分别设置在除可移动电极部分（7）之外的第一硅板和两个第二硅板（1,3）之间的热氧化膜（4,5），并且将第一硅板 （2）除了可移动电极和两个第二硅板之外。 制造电容式加速度计的过程是通过切割锯切而不进入切屑或切割水的加速度计来切割晶片而制成的。