A method for determining a property of a fiber suspension comprises obtaining a sample and diluting the sample by a first dilution, thereby providing a diluted sample, while retaining essentially all of the sample, and mixing the diluted sample, thereby providing a mixed, diluted sample. By removing part of the mixed, diluted sample and retaining an amount of the mixed, diluted sample, further diluting the mixed, diluted sample by adding dilution water to the retained amount of the mixed, diluted sample, thereby providing a further diluted sample, while retaining essentially all of the mixed, diluted sample, mixing the further diluted sample, thereby providing a mixed, further diluted sample, and repeating these steps until the concentration is suitable for measuring the property of the further diluted sample, this property can be measured with high accuracy. A device for determining a property to be determined of a suspension is also provided.
G01N 1/38 - Dilution, dispersion ou mélange des échantillons
B01F 31/65 - Mélangeurs avec mécanismes à secousses, oscillants ou vibrants les matières à mélanger étant directement soumises à un mouvement de pulsation, p. ex. au moyen d'un piston oscillant ou d'une colonne d'air
B01F 23/40 - Mélange de liquides avec des liquidesÉmulsion
B01F 23/43 - Mélange de liquides avec des liquidesÉmulsion en utilisant des agitateurs entraînés
A method for determining a property of a fiber suspension comprises obtaining a sample and diluting the sample by a first dilution, thereby providing a diluted sample, while retaining essentially all of the sample, and mixing the diluted sample, thereby providing a mixed, diluted sample. By removing part of the mixed, diluted sample and retaining an amount of the mixed, diluted sample, further diluting the mixed, diluted sample by adding dilution water to the retained amount of the mixed, diluted sample, thereby providing a further diluted sample, while retaining essentially all of the mixed, diluted sample, mixing the further diluted sample, thereby providing a mixed, further diluted sample,, and repeating these steps until the concentration is suitable for measuring the property of the further diluted sample, this property can be measured with high accuracy. A device for determining a property to be determined of a suspension is also provided.
A method of determining a property of a heterogeneous medium in motion comprising at least two phases is provided. A light beam is made small in relation to a part of the medium for which a property is to be determined and the bandwidth of the measurement signal is sufficiently high for distinguishing time periods for the measurement signal which are related to the part of the medium for which a property is to be determined. By using the measurement signal for determining the property of the part of the medium for which a property is to be determined for time periods for the measurement signal which are related to that part of the medium, and determining the property by a mathematical calculation using the measurement signal corresponding to that part of the medium, the properties of individual parts of the medium can be determined.
G01N 21/85 - Analyse des fluides ou solides granulés en mouvement
G01N 21/3577 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière infrarouge pour l'analyse de liquides, p. ex. l'eau polluée
G01N 15/06 - Recherche de la concentration des suspensions de particules
G01N 21/33 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière ultraviolette
A device for sampling, preparing and analysing a sample, for example a suspension, comprises: a sampling device adapted to sampling a fluid sample, at least one sample preparation unit adapted to prepare the sample, and at least one analysing unit. By adapting the device for sampling and analysing a sample for placement in direct vicinity to a process pipe and adapting the sampling device to sample a fluid sample directly from a gate, a compact and cost-efficient device is provided, which also provides fast feedback to a process to be controlled.
81791891ABSTRACTA method of determining a property of a heterogeneous medium in motion is provided. The medium is irradiated with a light beam having a predetermined wavelength to obtain a measurement signal. The light beam is small in relation to a part of the medium for which a property is to be determined. The bandwidth of the measurement signal is sufficiently high for distinguishing time periods for the measurement signal related to the part of the medium for which a property is to be determined. For time periods for the measurement signal related to the part of the medium for which a property is to be determined, the measurement signal is used for determining the property of the part of the medium for which a property is to be determined by a mathematical calculation using the measurement signal corresponding to the part of the medium.Date Recue/Date Received 2021-02-05
A device (100) for sampling, preparing and analysing a sample, for example a suspension, comprises: a sampling device (A) adapted to sampling a fluid sample, at least one sample preparation unit (B, C) adapted to prepare the sample, and at least one analysing unit (D). By adapting the device for sampling and analysing a sample for placement in direct vicinity to a process pipe and adapting the sampling device to sample a fluid sample directly from a gate, a compact and cost-efficient device is provided, which also provides fast feedback to a process to be controlled.
A method of determining a property of a heterogeneous medium in motion comprising at least two phases is provided. The medium is irradiated with a light beam having at least one predetermined wavelength and a measurement signal is obtained which is representative for detected light leaving the medium, wherein the light beam is small in relation to a part of the medium for which a property is to be determined. The bandwidth of the measurement signal is sufficiently high for distinguishing time periods for the measurement signal which are related to the part of the medium for which a property is to be determined. For time periods for the measurement signal which are related to the part of the medium for which a property is to be determined, the measurement signal is used for determining the property of the part of the medium for which a property is to be determined, and wherein the property to be determined is determined by a mathematical calculation using the measurement signal corresponding to the part of the medium for which a property is to be determined. The properties of individual parts of the medium can thereby be determined.
A device (100) for sampling, preparing and analysing a sample, for example a suspension, comprises: a sampling device (A) adapted to sampling a fluid sample, at least one sample preparation unit (B, C) adapted to prepare the sample, and at least one analysing unit (D). By adapting the device for sampling and analysing a sample for placement in direct vicinity to a process pipe and adapting the sampling device to sample a fluid sample directly from a gate, a compact and cost-efficient device is provided, which also provides fast feedback to a process to be controlled.
