PROBLEM TO BE SOLVED: To provide a corrosion measurement system with which it is possible to measure a corrosion rate with high accuracy while using an external power supply in order to enable long-term corrosion measurement.;SOLUTION: Provided is a corrosion measurement system 100 for measuring the corrosion of water stored in a grounded water storage tank 7 and/or circulating in a grounded piping, comprising: an insulated container 3; a corrosion sensor 1; and a switching power supply 6. The insulated container 3 stores the water in the water storage tank 7 and/or the piping electrically separately from the water in the water storage tank 7 and/or the piping. The corrosion sensor 1 includes an electrode 20 immersed in the water stored in the insulated container 3, and a corrosion sensor board 10 for calculating a corrosion rate from the solution resistance value and corrosion reaction resistance value measured using the electrode 20. The switching 6, grounded to earth, converts the AC power from the external power supply 5 to DC power and supplies the DC power to the corrosion sensor board 10.;SELECTED DRAWING: Figure 4;COPYRIGHT: (C)2019,JPO&INPIT
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