Abstract: This invention relates to a dewatering apparatus, in particular a paper machine or a paperboard machine, for the adjustable, and controllable dewatering of a fibrous material, which is conveyed as a fibrous web that can be divided into at least two zones arranged side by side in a cross direction (CD). The dewatering apparatus is characterized in that the dewatering of the fibrous material is adaptable to a dewatering curve defined in a machine direction on the basis of measurements of the water weight of the fibrous material taken by at least two water weight sensors, in particular a one-dimensional or multi-dimensional sensor arrangement of water weight sensors, which are assigned to a zone and arranged preferably in pairs in mutually offset position in the CD direction.

Abstract: In a method for the production of a fibrous web, especially a paper or cardboard web, an automatic ash control system and an automatic retention control system for the reduction or suppression of an interactive build-up of the two controls are linked via a model for the dependence between the filler addition and the retention agent consumption. A computer assisted quality control system is also cited.

Abstract: A system for the computer-aided measurement of quality and/or process data during the production and/or conversion of a material web, in particular paper or board web, by way of correlation with raw measured data. The raw measured data is present in the form of other quality and process data during the production or conversion process. Measurements of quality parameters in the laboratory may also be incorporated in the raw measured data. The raw measured data is combined to form data sets which in each case are determined simultaneously. Specific laboratory or quality measurements are selected as target data which, by way of at least one soft-sensor algorithm running in a computer-based operation and linking unit, can be calculated from the other data serving as input data, and each data set containing measured data, which relates approximately to the same monitored volume of web and raw material, in particular paper and paper raw material.

Abstract: A gas-insulated switchgear assembly (1) or component of a gas-insulated switchgear assembly is proposed which has an outdoor bushing (6) through which at least one high voltage-carrying conductor (7) is passed. A surge arrester (8) is arranged essentially parallel to the outdoor bushing (6) and is connected to the high voltage-carrying conductor (7) and/or to the top part of the outdoor bushing (6) via a high voltage-side connection piece (9) and to the foot part of the outdoor bushing (6) and/or to the housing of the gas-insulated switchgear assembly or the component of the gas-insulated switchgear assembly via a housing-side connection piece (10).

Abstract: In a method for the production of a fibrous web, especially a paper or cardboard web, an automatic ash control system and an automatic retention control system for the reduction or suppression of an interactive build-up of the two controls are linked via a model for the dependence between the filler addition and the retention agent consumption. A computer assisted quality control system is also cited.

Abstract: Method and a sensor for determining measured values of properties of a suspension in a machine for producing a fibrous web, in which light interacts with the fibrous suspension. The sensor picking up a scattered light signal and a transmitted light signal and measured values of at least one property are determined by evaluating the scattered light signal and the transmitted light signal.

Abstract: A system for the computer-aided measurement of quality and/or process data during the production and/or conversion of a material web, in particular paper or board web, by way of correlation with raw measured data. The raw measured data is present in the form of other quality and process data during the production or conversion process. Measurements of quality parameters in the laboratory may also be incorporated in the raw measured data. The raw measured data is combined to form data sets which in each case are determined simultaneously. Specific laboratory or quality measurements are selected as target data which, by way of at least one soft-sensor algorithm running in a computer-based operation and linking unit, can be calculated from the other data serving as input data, and each data set containing measured data, which relates approximately to the same monitored volume of web and raw material, in particular paper and paper raw material.