Fluid sensing systems

Details Fluid sensing systems Fluid sensing systems

1972-11-24

1976-04-27

Gill, James J.

Measuring and testing

Volume or rate of flow

System

73231R, G01F 1115

Patent

active

039525929

ABSTRACT:
A net oil computer including a vibration densitometer and a turbine flowmeter. The flowmeter produces output pulses at a frequency directly proportional to the rate of volume flow through a pipeline. The output of the flowmeter is impressed upon the pole of a single pole, double throw electronic switch. One switch contact is connected to an indicator through a divider, a driver amplifier and a counter. The other contact is also connected to an indicator through a divider, a driver amplifier and a counter. The switch is operated by a gate generator connected from the densitometer. The gate generator produces an output pulse of a pulse width directly proportional to the percent of oil or water in the pipeline. A temperature probe is inserted in the line to vary the pulse width in accordance with oil temperature. The densitometer has an improved magnetostrictive drive which is controlled to have a phase proper for maximum resonance. The densitometer is also provided with a self-start circuit to find resonance automatically. A synchronous detector detects resonance and automatically turns the self-start circuit off.

REFERENCES:
patent: 2803960 (1957-08-01), Hart
patent: 2992561 (1961-07-01), Burt
patent: 3040585 (1962-06-01), Chatel et al.
patent: 3154950 (1964-11-01), Hargens et al.
patent: 3385108 (1968-05-01), Rosso

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