Method and apparatus for monitoring materials

Details Method and apparatus for monitoring materials Method and apparatus for monitoring materials

G - Physics

01

N

G01N 25/18 (2006.01)

Patent

CA 2590610

A method and apparatus for monitoring during dynamic processes that determines when effective measurements of thermal effusivity and/or thermal conductivity can be made during a portion of a cycle during a calibration phase, then measures thermal effusivity and/or thermal conductivity during a subsequent dynamic process in dependence upon the time delay value and the measurement duration value until a desired value is obtained. A sensor having a measurement period of between one of two seconds allows monitoring of materials during dynamic processes such as tumbling, blending, mixing, and rocking. For example, measurements can be made until a value indicative of a desired mixture condition is obtained.

L~invention concerne un procédé et un appareil de suivi au cours de processus dynamiques, servant à déterminer le moment où des mesures effectives d~effusivité thermique et/ou de conductivité thermique peuvent être réalisées durant une partie d~un cycle au cours d~une phase de calibrage, puis à mesurer l~effusivité thermique et/ou la conductivité thermique au cours d~un processus dynamique subséquent en fonction d~une valeur de temporisation et d~une valeur de durée de mesure, jusqu~à l~obtention d~une valeur souhaitée. Un capteur dont la période de mesure est comprise entre une et deux secondes permet le suivi de matériaux au cours de processus dynamiques, comme le roulage au tambour, le malaxage, le mélange et l~agitation par balancement. Des mesures peuvent être réalisées jusqu~à l~obtention d~une valeur indiquant un état de mélange souhaité.

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