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专利名称：Method and device for measuring a mass
flow
发明人：Jens Happel申请号：US10484954申请日：20020725
公开号：US20050001169A1公开日：20050106
专利附图：
摘要：A device used to measure the mass flow of a particulate transported with theaid of a gas. The device includes an arrangement which is used to create an
electromagnetic field, with a measuring area being defined therein. An evaluation device
for electromagnetic radiation which is reflected at least off of the solid(s) is connected toa detector. The evaluation device is provided with a differentiator which is connected tothe detector for detecting reflected electromagnetic radiation. A rectifier is connected tothe differentiator in order to determine an amount, whereby mass flow is obtained fromthe reflection amount. The reflection is measured, at least from the solid(s) within themeasuring area of the magnetic field, whereupon the differential quotient is determinedas a function of time from the chronological progression of the measuring signal and theamount is obtained therefrom. A measuring signal is obtained from the non-homogeneityof the electromagnetic field, forming the integral over time of the amount of thereflected power per time. The measuring signal is proportional to the mass flow.
申请人：Jens Happel
地址：Lubeck-Brandenbaum DE
国籍：DE
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