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G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
G01F1/22—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
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Physics & Mathematics
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Fluid Mechanics
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General Physics & Mathematics
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Investigating Or Analyzing Materials By The Use Of Magnetic Means
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Vorrichtung zum Pruefen der Dichtheit von Gasschutzmasken und zum Messen des Luftdurchlasswiderstandes des an die Gasschutzmaske angeschlossenen Atemschutzfilters