| 摘要 |
PROBLEM TO BE SOLVED: To provide an in-liquid electric potential measurement electrode device capable of minimizing gas accumulation in a housing thereof and cleaning dirt off from an outer surface side of a filter that covers an opening of the housing.SOLUTION: An in-liquid electric potential measurement electrode device 1 comprises a measurement electrode 12 for measuring in-liquid electric potential, a housing 11 that covers the measurement electrode 12 and has an opening 111 in communication with outside the housing, a filter 112 that covers the opening 111 of the housing 11 and is configured to pass liquid therethrough, and a pair of energizable cleaning electrodes 13a, 13b located in the close proximity of an outer side of the filter 112. The device is configured such that gas generated by energizing the cleaning electrodes 13a, 13b cleans dirt off from the outer surface side of the filter 112.SELECTED DRAWING: Figure 2 |
