Method and an apparatus for measuring the flow in oscillating di

Details Method and an apparatus for measuring the flow in oscillating di Method and an apparatus for measuring the flow in oscillating di

1989-06-02

1991-09-10

Lall, Parshotam S.

Boots, shoes, and leggings

G01L 2300

Patent

active

050479504

ABSTRACT:
In a method and apparatus for measuring and monitoring the flow in oscillating displacement pumps, the basis for measurement used is the working principle of the pump itself and, accordingly, the mathematically unambiguous relation between the displacer kinematics and the compression or expansion time of the displacer is utilized, in particular via a microcomputer. For this purpose the compression time and expansion time are measured as the time difference between the back and the front dead point position of the plunger, respectively, and the coupling pressure peak at the beginning of the feeding process and the suction process, respectively, which is effected in particular by sensors.

REFERENCES:
patent: 4108574 (1978-08-01), Bartley et al.
patent: 4624625 (1986-11-01), Schrenker
patent: 4705459 (1987-11-01), Buisine et al.

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