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 system for computer assisted monitoring of a cross profile of a quality parameter of a material web, especially a paper or cardboard web during its production and/or conversion, which includes a measuring system for measuring the cross profile, at least one computer based operations and logic unit for the determination of the standard deviations of at least two interference profiles that are representative for different interferences in the form of different peak groups in the measured cross profile. The different peak groups differentiate in that their peaks have different width ranges. Elements for storage, display and/or further processing of the determined standard deviations are also included.

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 system for computer assisted monitoring of a cross profile of a quality parameter of a material web, especially a paper or cardboard web during its production and/or conversion, which includes a measuring system for measuring the cross profile, at least one computer based operations and logic unit for the determination of the standard deviations of at least two interference profiles that are representative for different interferences in the form of different peak groups in the measured cross profile. The different peak groups differentiate in that their peaks have different width ranges. Elements for storage, display and/or further processing of the determined standard deviations are also included.