Arrangement at measurement of PH or another chemical property detectable by dye indicators
AssigneeJanesko Oy
InventorsVille Voipio, Katri Vuokila
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Abstract
The invention relates to an arrangement at measurement of pH or another chemical property detectable by dye indicators. To provide a simple and safe solution, the measuring part is formed of a glass sheet or a similar substrate, the substrate being coated with a dye film, which is arranged to change its color in a manner known per se when a chemical property of the environment changes. The dye film is arranged to serve as a light reflective surface, whereby the chemical property of the solution to be measured can be measured as light reflection measurement.
Claims7
An arrangement at measurement of pH or another chemical property detectable by dye indicators, comprising:
- a substrate to be immersed into a solution to be measured, the substrate being coated with a dye film arranged to change its color when a chemical property of the environment changes, wherein the dye film is covered by a dielectric mirror formed of several layers, allowing ions to pass through and reflecting light backwards, whereby a color change in the dye film can be measured as light reflection measurement.
Dependencies are inferred from the claim text.