Automatic flowmeter calibration system

Details Automatic flowmeter calibration system Automatic flowmeter calibration system

1979-06-22

1981-02-24

Wise, Edward J.

Boots, shoes, and leggings

364510, 73861, G01F 108

Patent

active

042531560

ABSTRACT:
A system for automatically calibrating the accuracy of a flowmeter which is used for measuring the flow of fluid such as gas or liquid flowing therethrough. The system includes a calculator capable of performing mathematical functions responsive to receiving data signals and function command signals. A prover cylinder which includes a piston is provided for measuring the temperature, pressure, and time required for accumulating a predetermined volume of fluid. Along with these signals, signals representing the temperature and pressure of the fluid going into the meter are fed to a plurality of data registers. Under control of a process controller, which includes a program counter, a programmable read only memory, and decoder logic system, the data registers are read out and the information is fed through a data select circuit to the calculator. Command signals are also produced by a function select circuit and are fed to the calculator set indicating the desired function to be performed. The calculator set performs the calculation and generates a readout indicating the flow rate of the fluid. This reading is, in turn, compared with the reading produced by the flowmeter to determine if such is calibrated properly.

REFERENCES:
patent: 3614892 (1971-10-01), Ottenstein
patent: 3831011 (1974-08-01), Hulme
patent: 3839911 (1974-10-01), Zimmerman et al.
patent: 3854038 (1974-12-01), McKinley
patent: 3862405 (1975-01-01), Beck
patent: 3888106 (1975-06-01), Last et al.
patent: 3895529 (1975-07-01), Moore
patent: 4044602 (1977-08-01), Higgs et al.
patent: 4118780 (1978-10-01), Hirano

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