Apparatus and method for measuring the mass flow rate of materia

Details Apparatus and method for measuring the mass flow rate of materia Apparatus and method for measuring the mass flow rate of materia

1989-07-10

1991-12-03

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

G01F 184

Patent

active

050690744

ABSTRACT:
An improved method and apparatus for processing sensory input signals of the type obtained from Coriolis mass flow rate sensors and the like including differencing circuitry responsive to inputs received from two motion pick-up devices and operative to generate a "difference" signal which is directly proportional to the difference therebetween, summing circuitry responsive to the signals generated by the two pick-ups and operative to develop a "sum" signal which is proportional to the sum thereof, integrator circuitry for reducing the frequency dependency by one order and shifting the phase of the sum signal by 90 degrees, and dividing circuitry for dividing the integrated sum signal by the difference signal to develop an output signal which is directly proportional to the rate of mass flowing through a conduit to which the two pick-up devices are attached.

REFERENCES:
patent: 4823614 (1989-04-01), Dahlin
patent: 4914956 (1990-04-01), Young et al.

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