| 摘要 |
A self-wetting electrochemical sensor (10) comprising: a substrate (12) comprising an active species; and a pair of electrical conductors (14, 16) each being arranged to contact the substrate (12) at one or more contact points; wherein at least part of the surface of the substrate (12) adjacent the or each contact point is hygroscopic. For example, the substrate may be doped with lithium bromide, lithium chloride or sodium silicate to make it hygroscopic such that it attracts moisture to the substrate from the surroundings and therefore does not require further electrolyte irrigation to the substrate. The electrochemical sensor may be a chlorine gas sensor, wherein the substrate is also doped with an active species of potassium bromide or sodium bromide, although other embodiments are also disclosed. A method of manufacturing a self-wetting electrochemical sensor (12) is also disclosed. |
