Testing device for flow meters

Details Testing device for flow meters Testing device for flow meters

1984-05-25

1986-10-28

Myracle, Jerry W.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73239, G01F 2500

Patent

active

046191348

ABSTRACT:
Disclosed is a testing device for at least one flow meter installed in a pipeline. The device includes a calibration container connected to the pipeline across a switch-over valve. A measuring piston is guided for reciprocating movement in the container between a starting and a terminal position. The measuring piston supports two signal releasing rings which are spaced apart from the other about a distance which when multiplied by the inner clearance of the calibration container determines a calibration volume of the measuring path of the piston. At least one signal generator is installed in the wall of the calibration container and cooperates in a contactless manner with the first and second signal releasing rings so as to produce start and stop pulses for one measuring cycle. The flow meter is connected to a pulse generator responsive to the flow rate and connected to an evaluation circuit which after completion of a measuring cycle compares the counted pulses with the calibration volume.

REFERENCES:
patent: 3270549 (1966-09-01), Martin
patent: 3344667 (1967-10-01), Maltby
patent: 3403544 (1968-10-01), Francisco

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