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公开(公告)号:US20250027903A1
公开(公告)日:2025-01-23
申请号:US18908265
申请日:2024-10-07
Inventor: Hidetaka SUGAYA , Katsutoshi FUKUDA
IPC: G01N27/447
Abstract: When an electric field reversal test is performed using water (W1) containing bubbles (10), in which the bubbles (10) are alternately attracted to an anode and a cathode, the bubbles (10) exhibit a behavior in which the bubbles (10) have charges of opposite signs between a slow filed reversal and a fast field reversal in which the electric field is reversed in a shorter period than in the slow field reversal.