US 11,892,392 B2
Corrosion rate estimating device and method
Shingo Mineta, Musashino (JP); Shota Oki, Musashino (JP); Mamoru Mizunuma, Musashino (JP); Soichi Oka, Musashino (JP); and Takashi Sawada, Musashino (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/058,098
Filed by Nippon Telegraph and Telephone Corporation, Tokyo (JP)
PCT Filed May 24, 2019, PCT No. PCT/JP2019/020575
§ 371(c)(1), (2) Date Nov. 23, 2020,
PCT Pub. No. WO2019/225727, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 2018-099495 (JP), filed on May 24, 2018.
Prior Publication US 2021/0215594 A1, Jul. 15, 2021
Int. Cl. G01N 17/04 (2006.01); G06N 20/00 (2019.01); G06N 5/04 (2023.01)
CPC G01N 17/04 (2013.01) [G06N 5/04 (2013.01); G06N 20/00 (2019.01)] 3 Claims
OG exemplary drawing
 
1. A corrosion rate estimation apparatus comprising:
a corrosion rate measurement unit adapted to repeat water supply cycles in which water is supplied to soil in which a metal to be evaluated is buried, and to measure a cycle number of each water supply cycle, one or more time points in each water supply cycle, and a corrosion rate of the metal at the one or more time points;
a learning unit adapted to find a prediction model using the cycle number, the one or more time points, and the corrosion rate as input to a machine learning algorithm, the prediction model representing a future corrosion rate; and
a corrosion rate estimation unit adapted to assign a particular cycle number and a time point in a particular cycle at which a desired corrosion rate is to be estimated to the prediction model, and to estimate the desired corrosion rate of the metal at the time point.