Corrosivity measurement device with temperature compensation

Details Corrosivity measurement device with temperature compensation Corrosivity measurement device with temperature compensation

G - Physics

01

N

G01N 17/04 (2006.01) G01K 7/02 (2006.01) G01N 17/00 (2006.01) G01N 17/02 (2006.01)

Patent

CA 2426908

An improved corrosion measurement system for determining the rate of corrosion of a fluid medium. The system is comprised of a highly sensitive excitation and amplification electronic circuitry for registering and displaying the stable and accurate measurement results. A novel current feedback amplifier maintains a constant alternating current voltage across the reference element, by simultaneously controlling the current through the serially connected reference and corroding elements, thereby keeping the corrosivity measurement independent of the probe's ambient temperature. The unique unitized electrical resistance measurement probe is also temperature stabilized using thermally bridged and balanced metallic elements; the first reference element being coated with an impermeable insulating coating, the second, the sacrificial corroding element, being fully exposed to the corrosive fluid medium.

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