Patent ID: 11906419
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A corrosion prediction device that predicts corrosion indicating the degree to which a metal will corrode in an environment, the device comprising:
a storage unit which stores a soil sample that simulates the environment and an electrode unit and has a function of repeatedly performing water supply and drainage with respect to the soil sample;
the electrode unit including at least one type of metal;
a measurement unit that measures, based on change in water content in the environment in one cycle, a corrosion rate of the metal or a value proportional to the corrosion rate of the metal during the change;
a calculation unit that integrates the corrosion rate or a value proportional to the corrosion rate over time and calculates an amount of corrosion or a value proportional to the amount of corrosion; and
a prediction unit that determines, based on the amount of corrosion or the value proportional to the amount of corrosion and rainfall information for a predetermined period, a constant value of K of a power law and a constant value of n of the power law using a difference between the amounts of corrosion or the values proportional to the amounts of corrosion in different periods.