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APPARATUS FOR MEASURING MASS FLOW OF FLUIDBORNE SOLIDS

  • US 3,635,082 A
  • Filed: 04/23/1969
  • Issued: 01/18/1972
  • Est. Priority Date: 04/23/1969
  • Status: Expired due to Term
First Claim
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1. Apparatus for measuring the flow of finely divided particles transported in varying density through a conduit in a fluid stream comprising a first detector at a first location on the conduit for detecting variations in particle density, a second detector at a second location on the conduit spaced apart and downstream from the first detector for detecting variations in particle density, means connected to the detectors and responsive to variations in particle density for measuring particle velocity by determining the time delay between the detection of correlated variations in particle density at the first detector and at the second detector, means for measuring particle density in the conduit, and means combining said velocity-measuring means and said density-measuring means for indicating mass flow rate of particles in said conduit.

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