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    2.
    发明专利
    未知

    公开(公告)号：FI762775A

    公开(公告)日：1977-04-02

    申请号：FI762775

    申请日：1976-09-29

    Applicant: HOECHST AG

    Inventor： QUIETZSCH GERHARD ,  GREINER BERND ,  PELZ LOTHAR

    IPC: G01R1/22 ,  G01R

    Abstract: Direct currents and alternating currents superposed upon same are measured by embracing the current conveying conductor with a prong-type meter. The jaws of the prong are provided with guide means for the current conveying conductor and with induction coils concentrically disposed with respect to the recess defined by the jaws. The prong is further provided with an electronic amplifier unit comprising an integrator for direct current, an amplifier, a filter and a rectifier for alternating current as well as means to display the measuring values. According to a special embodiment at least one jaw of the prong carries a thermometer projecting into the recess.

    PROCESS FOR ADJUSTING THE ELECTRODE DISTANCE IN AN ELECTROLYTIC CELL WITH FLOWING MERCURY CATHODE
    4.
    发明专利
    PROCESS FOR ADJUSTING THE ELECTRODE DISTANCE IN AN ELECTROLYTIC CELL WITH FLOWING MERCURY CATHODE 未知

    公开(公告)号：CA981211A

    公开(公告)日：1976-01-06

    申请号：CA158924

    申请日：1972-12-15

    Applicant: HOECHST AG

    Inventor： QUIETZSCH GERHARD ,  NOTTEBOHM HARALD ,  GREINER BERND ,  HUND HELMUT ,  PELZ LOTHAR

    IPC: C25B9/02 ,  C25B15/04 ,  G05D3/12

    Abstract: 1407850 Electrode separation in mercury cell HOECHST A G 18 Dec 1972 [18 Dec 1971] 58411/72 Heading C7B In an electrolytic cell a process for adjusting the distance between the anode and the flowing mercury cathode comprises moving the anode towards the cathode until the rate of charge of the amplitude of a superimposed alternating voltage or current as a function of the change of direct voltage or current reaches a standard value. In Fig. 3 the total voltages are measured at points (1, 2, 3) between anode 5 and cathode 6. The voltages are conveyed to filters F 1- 3 from where alternating voltages Uw 1-3 and direct voltages Ug 1-3 are conveyed to commutator 7 and computor 8. For each pair of valves U w , Ug the gradient with respect to the previous valve is compared with a standard. The anodes may be moved by motor 9. The frequency monitored may be 2-30 cycles/sec. The cell may be used for the production of chlorine from an alkali metal chloride.

    6.
    发明专利
    未知

    公开(公告)号：DE2729732A1

    公开(公告)日：1979-01-18

    申请号：DE2729732

    申请日：1977-07-01

    Applicant: HOECHST AG

    Inventor： BERGNER DIETER DIPL CHEM DR ,  HEUBACH ERHARD DR ,  HOFMANN WINFRIED DIPL ING ,  KUESTER OTTWIN DIPL ING ,  PELZ LOTHAR

    IPC: C25B15/02 ,  G05B13/02 ,  C25B1/42

    Abstract: Equipment for controlling, monitoring, determining the most effective operating conditions and operating, and for displaying data in, alkali metal chloride electrolysis plants which are operated by the amalgam process, wherein the equipment has, for each electrolytic cell or for each group of electrolytic cells, a data collecting and processing device for controlling, monitoring and determining the most effective operating conditions the electrolytic cell or group, and all the data collecting and processing devices are connected to a central data collecting and processing device for central operation and for displaying data.

    APPARATUS FOR MEASURING ELECTRIC CURRENT
    9.
    发明专利
    APPARATUS FOR MEASURING ELECTRIC CURRENT 未知

    公开(公告)号：CA1076648A

    公开(公告)日：1980-04-29

    申请号：CA262433

    申请日：1976-09-30

    Applicant: HOECHST AG

    Inventor： QUIETZSCH GERHARD ,  GREINER BERND ,  PELZ LOTHAR

    IPC: G01R1/22

    Abstract: Apparatus for Measuring Electric Current Direct currents and alternating currents superposed upon same are measured by enbracing the current conveying conductor with a prong-type meter. The jaws of the prong are provided with guide means for the current conveying conductor and with induction coils concentrically disposed in the recess defined by the jaws. The prong is further provided with an electronic amplifier unit comprising an integrator for direct current, an amplifier, a filter and a rectifier for alternating current as well as means to display the measuring values. According to a special embodiment at least one jaw of the prong carries a thermometer projecting into the recess.

    10.
    发明专利
    未知

    公开(公告)号：CH607035A5

    公开(公告)日：1978-11-30

    申请号：CH1225176

    申请日：1976-09-28

    Applicant: HOECHST AG

    Inventor： QUIETZSCH GERHARD DR ,  GREINER BERND DR ,  PELZ LOTHAR

    IPC: G01R1/22 ,  G01R1/30 ,  H01F40/06

    Abstract: Direct currents and alternating currents superposed upon same are measured by embracing the current conveying conductor with a prong-type meter. The jaws of the prong are provided with guide means for the current conveying conductor and with induction coils concentrically disposed with respect to the recess defined by the jaws. The prong is further provided with an electronic amplifier unit comprising an integrator for direct current, an amplifier, a filter and a rectifier for alternating current as well as means to display the measuring values. According to a special embodiment at least one jaw of the prong carries a thermometer projecting into the recess.

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