Buddha Galvani cell type oxygen sensor

Diaphragm Buddha Galvani battery type oxygen sensor structure: in a plastic container on one side with a good oxygen permeability , thickness 10 ~ 30μm PTFE breathable membrane inside its container tightly stuck in precious metals ( platinum , gold, silver, etc. ) cathode electrode , the other side of the inside of the container or container blank part of the formation of the anode ( the use of lead , cadmium and other large metal ionization tendency ) . With potassium hydroxide. Oxygen at the anode and cathode through the electrolyte when the redox reaction of the metal ions of the anode , releasing electrons , the size of the current proportional to the amount of oxygen , the reaction of the whole consumption of the anode metals , Engine Coolant Temp Sensor needs to be replaced regularly. Domestic technology has matured , can localization of such sensors.