Ultrasonic density meter with damping

Details Ultrasonic density meter with damping Ultrasonic density meter with damping

1984-03-20

1986-04-22

Levy, Stewart J.

Measuring and testing

Specific gravity or density of liquid or solid

73438, G01N 900

Patent

active

045833931

ABSTRACT:
A density meter includes a main body having a vertically elongated chamber to contain a test fluid. A passageway in the main body connects to the chamber near its bottom end. The passageway spans at least a bottom portion of the chamber and leads to the exterior of the main body. The chamber has in its lower end a liquid which is immiscible with and denser than the test fluid, the liquid also occupying at least part of the passageway. Access means are provided for admitting the test fluid to the chamber and evacuating it therefrom. Measuring means are provided for determining the location of the top surface of the liquid. The measuring means to determine the location of the liquid top is preferably ultrasonic.

REFERENCES:
patent: 1602444 (1926-10-01), Naiman
patent: 2279254 (1942-04-01), Irwin
patent: 2775748 (1956-12-01), Rod et al.
patent: 3190126 (1965-06-01), Wright
patent: 3553636 (1971-01-01), Baird

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