Microwave device and process for measuring basis weight of paper or density of pulp in a paper making machine

作者: Rudolf Münch , Oliver Kaufmann , Thomas Ischdonat , Pekka Typpo

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摘要: Device and process for measuring mass per unit area of sheet products and/or density material in a pipe. The device includes microwave element positionable to couple high frequency electromagnetic field into be measured, signal generator coupled the generate at east one operating having substantially higher than relaxation water said element. A an effect on is provided, as calculating based upon measured field.