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68 条记录 (耗时 0.013 秒)

    Measuring instrument
    1.
    发明授权
    Measuring instrument 失效
    测量仪器

    公开(公告)号：US3810014A

    公开(公告)日：1974-05-07

    申请号：US30811072

    申请日：1972-11-20

    申请人： HARTMANN & BRAUN AG

    发明人： GOLDNER H

    IPC分类号： G01R19/165 ,  G05B1/02 ,  G05B23/02 ,  G01R1/30 ,  G01R1/02

    CPC分类号： G05B1/02

    摘要： A variable is monitored and indicated by a measuring instrument incorporated in a circuit that uses the instrument for setting and adjustment of the reference input to be used later as trigger level. The reference is supplied to the first input of a differential amplifier while the variable is supplied to the second input of the amplifier. The output of the amplifier is connected with a reversing switch which in its one switching position couples the output to a tripping or triggering stage, possibly including a relay, and in the other one of its switching positions the output is coupled to the second input of the amplifier, so that the instrument actually indicates the reference value rather than the variable.

    摘要翻译： 一个变量由一个测量仪器进行监测并指示在一个电路中，该测量仪器使用仪器进行设置和调整参考输入，以便稍后用作触发电平。 将该参考值提供给差分放大器的第一输入端，同时将变量提供给放大器的第二输入端。 放大器的输出端与反向开关连接，该反向开关在其一个开关位置将输出耦合到可能包括继电器的跳闸或触发级，并且在另一个开关位置中，输出耦合到第二输入端 放大器，使仪器实际上指示参考值而不是变量。

    Infrared gas analyzer
    2.
    发明授权
    Infrared gas analyzer 失效
    红外气体分析仪

    公开(公告)号：US3725702A

    公开(公告)日：1973-04-03

    申请号：US3725702D

    申请日：1969-01-29

    申请人： HARTMANN & BRAUN AG

    发明人： SCHAEFER W

    IPC分类号： G01N21/37 ,  G01N21/34

    CPC分类号： G01N21/37

    摘要： Detector for analyzer is made up of four gas chambers, an incident pair and a respectively alined pair directly after the incident pair, chambers of the pairs being cross-connected by gas conduits. Detector measures difference in the sums of energy absorbed in cross-connected pairs, when analysis and comparison beams are respectively directed into the alined pairs, giving null readings for null values and with great stability of null point.

    摘要翻译： 分析仪检测器由四个气室，一对入射对和一对直接在入射对之后的分别配对构成，成对的室由气体导管交叉连接。 检测器测量交叉对中吸收的能量之和，当分析和比较光束分别导入到排列对中时，空值读数为零，并且具有很大的零点稳定性。

    Device for metering a particular quantity of fluid
    3.
    发明授权
    Device for metering a particular quantity of fluid 失效
    用于计量流体特定数量的装置

    公开(公告)号：US3690146A

    公开(公告)日：1972-09-12

    申请号：US3690146D

    申请日：1971-08-30

    申请人： HARTMANN & BRAUN AG

    发明人： HOFMANN KURT

    IPC分类号： B01L99/00 ,  G01N1/00 ,  G01N30/68 ,  G01N1/22 ,  G01N31/08 ,  G01N31/12

    CPC分类号： G01N30/68 ,  B01L3/0289

    摘要： Device for metering a particular quantity of fluid flowing into a particular duct; a capillary tube having inlet extending into the duct; first and second duct means respectively leading to and from the particular duct downstream from the capillary inlet, an auxiliary fluid flows into the first duct means and is discharged again through the second duct means together with fluid flowing in the particular duct and not having entered the capillary; and means are provided for obtaining pressure regulation of the auxiliary fluid as passing through the first and second duct means to obtain constant pressure head at inlet of the capillary tube.

    摘要翻译： 用于计量流入特定管道的特定量的流体的装置; 具有延伸到管道中的入口的毛细管; 第一和第二管道装置分别通往和离开从毛细管入口下游的特定管道，辅助流体流入第一管道装置，并且再次通过第二管道装置与流入特定管道的流体一起排出，并且没有进入 毛细管 并且提供用于获得辅助流体通过第一和第二管道装置的压力调节以在毛细管入口处获得恒定压力头的装置。