Measurement of gas content in molten metal using a constant curr

Details Measurement of gas content in molten metal using a constant curr Measurement of gas content in molten metal using a constant curr

1986-02-03

1987-08-11

Levy, Stewart J.

Measuring and testing

Gas content of a liquid or a solid

By vibration

73 1G, 73 27R, G01N 2718

Patent

active

046853251

ABSTRACT:
A single catharometer cell is employed in combination with a source of DC voltage and a device that provides constant electrical current for the cell. The constant current source provides a fixed reference for balancing against the electrical current flow through the cell when the cell contains only a carrier gas. An operational amplifier is connected across the cell and is adjustable to provide a desired output when a known amount of a second gas is present in the cell.

REFERENCES:
patent: 2861450 (1958-11-01), Ransley
patent: 4454748 (1984-06-01), Teral et al.

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