Stainless Steel Oxygen Sensor Cathodes
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Each sheet, (12 inches X 18 inches), of these Oxygen Sensor cathodes contains around 1,000 of these thin (3 mil) cathodes. The sheet is 316 grade stainless steel. Each cathode is shaped a little like a tennis racket, about 1/2 inch in diameter. The round part is perforated with hundreds of very tiny holes. The parts were fabricated utilizing a photo-resist etching process. Each sensor cathode is attached to the sheet with a tiny tab of material. When we have completed the plating, we return the entire sheet and each sensor cathode is removed. The plating had to be done with a very pure gold alloy following an aggressive acid gold strike. |
