Mass flowmeter

Details Mass flowmeter Mass flowmeter

1975-07-09

1976-05-25

Gill, James J.

Measuring and testing

Specific gravity or density of liquid or solid

73196, 73231M, G01F 112, G01F 176, G01N 932

Patent

active

039584470

ABSTRACT:
A flowmeter in which first and second sets of electrical signals representative, respectively, of the mass flow rate and the volumetric flow rate of a fluid are used to generate an adjusted mass flow rate signal which is representative of the mass flow rate and which reflects changes in flow rate substantially as they occur. Means are provided to generate a control signal representative of the density of the fluid, the control signal in turn being applied to a multiplier circuit which multiplies the volumetric flow rate signal by the control signal to generate the adjusted mass flow rate signal. The control signal is generated by comparing the first set of signals, which are representative of the mass flow rate, with a delayed portion of the adjusted mass flow rate signal, an inequality between the first set of signals and the adjusted mass flow rate signal resulting in a corresponding change in the magnitude of said control signal.

REFERENCES:
patent: 3306105 (1967-02-01), Ichihara et al.

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