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OwnerXiaodong Sun Yang, Lietai Yang Yanginventors
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As the development of DC transit systems continues, many of the buried pipelines and metal structures close to the metro system have experienced accelerated corrosion by the dynamic DC stray current. Because of the dynamic feature of the stray currents, monitoring the effect of the dynamic stray current on the corrosion of the buried structures has been a challenging task. This invention discloses a method to use a multielectrode system to measure the effect of dynamic stray currents on the corrosion of a metal structure or buried pipeline. The method also measures the effectiveness of cathodic protection under the influence of stray current. High-voltage power transmission lines that produce a changing magnetic field, which in turn produces an alternating current flowing through the berried pipe or other structures that run in parallel with the transmission lines. The method disclosed in this invention may also be used to detect the effect of the interference of the alternating current.
A multielectrode system for monitoring corrosion of a metal structure in an electrolyte environment that causes stray current or alternating current to flow into or out of the metal structure, comprising:
A multielectrode probe for monitoring corrosion of a metal structure in an electrolyte environment, comprising:
A method to use a multielectrode system to measure corrosion of a metal structure in an electrolyte environment that causes dynamic stray current or alternating current to flow into or out of the metal structure, comprising:
Dependencies are inferred from the claim text.