Process for producing fluorene compounds
    1.
    发明授权
    Process for producing fluorene compounds 失效
    芴化合物的制备方法

    公开(公告)号:US4820840A

    公开(公告)日:1989-04-11

    申请号:US146874

    申请日:1988-01-22

    摘要: An improved process for producing fluorene compounds of the following formula (II) is disclosed: ##STR1## (wherein R.sub.1, R.sub.2 and R.sub.3 are independently a hydrogen atom, an alkylamino group, a dialkylamino group, a pyrrolidino group or a piperdino group; X and Y are independently a carbon atom or a nitrogen atom; and with the proviso that R.sub.1 and R.sub.2 are not hydrogen atoms simultaneously). The process comprises reacting a lactone compound of the formula (I) (variables being defined as in formula (II) ) ##STR2## with a mixture of an aluminum halide, a carbonyl compound, and a hydroxy bearing compound.

    Capacitance-type pressure sensor unit
    7.
    发明授权
    Capacitance-type pressure sensor unit 失效
    电容式压力传感器单元

    公开(公告)号:US06212955B1

    公开(公告)日:2001-04-10

    申请号:US09367180

    申请日:1999-08-09

    IPC分类号: G01L912

    CPC分类号: G01L9/0072 G01L19/14

    摘要: A capacitance-type pressure sensor unit capable of being assembled without applying a pressure at an increased level to a circuit board. A connector body (6) has a base (6b) received in a peripheral wall section (13b) of a receiving casing (13) constituting a main body of the casing (13) and fixed to an end (13e) of the peripheral wall section (13b) by caulking. A pressure sensor element (3) constituted of a first insulating substrate (1) and a second insulating substrate (2) is arranged in a bottom wall section (13a) of the receiving casing (13) and a fluid chamber (15) into which pressure measured fluid is introduced is defined between a rear surface of the first insulating substrate (1) and the bottom wall section (13a). A circuit board (9) received in a circuit component receiving chamber (7) defined in the base (6b) of the connector body (6) is supported by connection conductors (8) for connection of a connector (5), metal terminal fitments (19) for electrically connecting output electrodes (2c) of the pressure sensor element (3) to a circuit board (9) and a ground terminal fitment (22) for electrically connecting a ground electrode of the circuit board (9) to the receiving casing (13) while being suspended in the chamber (7).

    摘要翻译: 一种电容型压力传感器单元,其能够在不向电路板施加增加的压力的情况下组装。 连接器体(6)具有容纳在构成壳体(13)的主体的容纳壳体(13)的周壁部(13b)中的基部(6b),并且固定在周壁的端部(13e) (13b)通过填缝。 由第一绝缘基板(1)和第二绝缘基板(2)构成的压力传感器元件(3)设置在容纳壳体(13)的底壁部(13a)和流体室(15) 限定在第一绝缘基板(1)的后表面和底壁部(13a)之间的压力测量流体。 接收在连接器主体(6)的基座(6b)中的电路部件接收室(7)中的电路板(9)由用于连接连接器(5)的连接导体(8),金属端子配件 (9)的输出电极(2c)与电路板(9)电连接的接地端子配件(22)和电路板(9)的接地电极与接收端子 壳体(13)同时悬挂在腔室(7)中。

    Electrostatic capacity-type pressure sensor with reduced variation in
reference capacitance
    8.
    发明授权
    Electrostatic capacity-type pressure sensor with reduced variation in reference capacitance 失效
    电容型压力传感器,参考电容的变化减小

    公开(公告)号:US6122973A

    公开(公告)日:2000-09-26

    申请号:US68789

    申请日:1998-05-15

    IPC分类号: G01L9/00 G01L9/12

    CPC分类号: G01L9/0075

    摘要: A capacitance-type pressure sensor capable of reducing a variation in reference capacitance. The capacitance-type pressure sensor includes insulating spacer (3b) arranged between a main capacitive electrode (4) and a reference capacitive electrode (5) to couple a base substrate (1) and a diaphragm substrate (2) to each other. The insulating spacer (3b) is patterned so as to restrain a variation in distance between the reference capacitive electrode (5) and a counter electrode (10) arranged on the diaphragm substrate (2). Such construction reduces a variation in capacitance between the reference capacitive electrode (5) and the diaphragm electrode (10), to thereby increase accuracy at which a pressure is measured.

    摘要翻译: PCT No.PCT / JP97 / 00718 Sec。 371日期:1998年5月15日 102(e)日期1998年5月15日PCT提交1997年7月3日PCT公布。 出版物WO98 / 12528 日期:1998年3月26日一种能够减小参考电容变化的电容式压力传感器。 电容型压力传感器包括布置在主电容电极(4)和参考电容电极(5)之间的绝缘间隔物(3b),以将基底基板(1)和隔膜基板(2)彼此连接。 对绝缘间隔物(3b)进行图案化,以限制参考电容电极(5)与布置在隔膜基板(2)上的对置电极(10)之间的距离的变化。 这样的结构减小了参考电容电极(5)和隔膜电极(10)之间的电容变化,从而提高了测量压力的精度。

    Pressure sensor module having dual insulating substrates on the pressure
sensing and non-pressure sensing sides
    9.
    发明授权
    Pressure sensor module having dual insulating substrates on the pressure sensing and non-pressure sensing sides 失效
    压力传感器模块在压力感测和非压力感测侧具有双重绝缘衬底

    公开(公告)号:US5932808A

    公开(公告)日:1999-08-03

    申请号:US945847

    申请日:1997-11-06

    IPC分类号: G01L9/00 G01L9/12

    CPC分类号: G01L9/0075

    摘要: The present invention provides a pressure sensor module which is capable of restraining application of a pressure of increased magnitude to a connector, reducing the number of parts therefor and compacting a structure thereof. A connector body (3a) is provided on a base section thereof with a flange (3g). An annular support (4) which is made of a material hard to be deformed under a high pressure as compared with the connector body (3a) is provided with an annular engagement recess (4b). The annular support (4) is fitted on the connector body (3a) to engage the flange (3g) with the annular engagement recess (4b). The annular support (4) is contacted on one end surface (4a) thereof with a pressure non-sensing side insulating substrate (5a) of a pressure sensing element (5) outside the base section of the connector body (3a). A housing (7) includes a cylindrical engagement section (7g1), which is curled so as to surround an outer edge of an end surface (4c) of the annular support (4), to thereby accomplish engagement between the housing (7) and the annular support (4).

    摘要翻译: PCT No.PCT / JP97 / 00717 Sec。 371日期:1997年11月6日 102(e)日期1997年11月6日PCT 1997年3月7日PCT公布。 出版物WO97 / 33146 日期1997年9月12日本发明提供一种压力传感器模块,其能够抑制对连接器施加增大幅度的压力,减少其部件数量并压实其结构。 连接器主体(3a)在其基部设有凸缘(3g)。 与连接器主体(3a)相比,由难以在高压下变形的材料制成的环形支撑件(4)设置有环形接合凹部(4b)。 环形支撑件(4)装配在连接器主体(3a)上,以使凸缘(3g)与环形接合凹部(4b)接合。 环形支撑件(4)的一个端面(4a)与连接器主体(3a)的基部外侧的压力感测元件(5)的压力非感测侧绝缘基板(5a)接触。 壳体(7)包括圆柱形接合部分(7g1),其被卷曲成围绕环形支撑件(4)的端表面(4c)的外边缘,从而实现壳体(7)和 环形支撑件(4)。

    Comparator having a reduced number of elements
    10.
    发明授权
    Comparator having a reduced number of elements 失效
    具有减少元素数量的比较器

    公开(公告)号:US5206542A

    公开(公告)日:1993-04-27

    申请号:US700415

    申请日:1991-05-15

    申请人: Satoshi Nakao

    发明人: Satoshi Nakao

    IPC分类号: H03K3/0233 H03K3/2893

    CPC分类号: H03K3/2893

    摘要: In a comparator according to this invention, a first transistor of a first polarity and a second transistor of a second polarity are connected to each other between a first and second potentials so as to provide positive feedback. The control terminal of a third transistor of the second polarity is connected to one end of the current path of the second transistor and at the midpoint of the positive feed back path between the first and second transistors. A reference voltage is supplied to the base of the first transistor from a voltage dividing resistor circuit that varies the reference voltage according to the conducting state of either the second transistor or the third transistor. The input signal is received at one end of the current path of the first transistor, while the output signal appears at one end of the current path of the third transistor.

    摘要翻译: 在根据本发明的比较器中,第一极性的第一晶体管和第二极性的第二晶体管在第一和第二电位之间彼此连接,以便提供正反馈。 第二极性的第三晶体管的控制端子连接到第二晶体管的电流路径的一端,并且连接在第一和第二晶体管之间的正反馈路径的中点。 参考电压从分压电阻电路提供给第一晶体管的基极,该分压电阻根据第二晶体管或第三晶体管的导通状态改变参考电压。 输入信号在第一晶体管的电流路径的一端被接收,而输出信号出现在第三晶体管的电流路径的一端。