APPARATUS FOR MEASURING MASS FLOW OF FLUIDBORNE SOLIDS

摘要

Finely divided particles in a fluid stream transported in a conduit comprise the dielectric of two spaced-apart capacitors at electrically insulated inserts in the conduit. Circuitry determines the time span between correlated variations in capacitance of the two capacitors as a measure of stream velocity. Additional circuitry determines stream density by measuring the capacitance. The velocity and density circuit outputs are multiplied to provide a mass flow rate. An integrator provides total flow.