Electric system of meter for measurements of density of mixtures

Measuring and testing – Specific gravity or density of liquid or solid

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Details

73 611R, 324 61QS, G01N 2722, G01N 900

Patent

active

040488446

ABSTRACT:
Electric system for a meter for measurements of density of the mixtures conveyed in pipelines. The system has a capacity sensor installed in a pipeline and being connected, via a capacitance transducer, with a system compensating temperature induced variations in capacity. The input of the said system is connected with a temperature sensor installed in the pipeline, while the output of the said system is connected with an indicator-recording system. Instead of being connected with the input of the system, the temperature sensor can be connected with the capacitance transducer which is then connected directly with the indicator-recording system. In the case of the mixture temperature's being constant or varying within a narrow range, the electric system of the meter comprises a capacity sensor connected, via the capacitance transducer directly with the indicator-recording system.

REFERENCES:
patent: 2985826 (1961-05-01), Fluegel
patent: 3176222 (1965-03-01), Atkisson
patent: 3635082 (1972-01-01), Prellwitz et al.
patent: 3839911 (1974-10-01), Zimmerman et al.

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