"Wiper electrode" isanzwe ikoreshwa mubihe byo gupima birimo itangazamakuru rikunda gupima, kwanduza, cyangwa birimo urwego rwo hejuru rwibintu byahagaritswe.
Bikunze gukoreshwa mugupima imiyoboro, gusesengura amashanyarazi, hamwe na sisitemu zimwe na zimwe zo kugenzura ubuziranenge bw’amazi kumurongo.