Measurement of gas content in molten metal using a constant...

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

G - Physics

01

N

324/25.5

G01N 27/00 (2006.01) G01N 27/18 (2006.01)

Patent

CA 1246675

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.

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