US 2015/0147231 A1 · OPTOCHEMICAL SENSOR

Abstract

The invention relates to an optochemical sensor comprising a polymer matrix which is applied to a substrate and which is doped with a luminescent colorant, the emissivity of which can be modified after excitation with electromagnetic radiation by substances to be detected such as gaseous or dissolved O2, SO2, H2O2, CO2, nitrogen oxides and halogenated hydrocarbons, which polymer matrix forms a sensor layer that is also covered by an optical insulating and protective layer which can be permeated by the substance to be analysed. In the optochemical sensor, the sensor layer is formed from a layer which has an insular sensor element or a plurality of mutually separated sensor elements, the at least one sensor element being covered by a non-doped polymer matrix which chemically corresponds to the polymer matrix of the sensor layer.

Claims19

Dependent claims

An optochemical sensor including a polymer matrix applied on a substrate and doped with a luminescent dye whose emissivity upon excitation with electromagnetic radiation by substances to be detected, such as gaseous or dissolved O2, SO2, H2O2, CO2, nitrogen oxides, halogenated hydrocarbons, is variable, and which forms a sensor layer, which is further covered by a protecting, supporting and/or insulating layer permeable for the substance to be analyzed, wherein the sensor layer is formed by a layer comprising at least one insular sensor element, which at least one insular sensor element is covered by an undoped polymer matrix chemically corresponding to the polymer matrix of the sensor layer, and that a further layer corresponding to the undoped polymer matrix is provided between the substrate and the layer comprising the at least one sensor element.

Dependencies are inferred from the claim text.

Optochemical sensor

Life of this patent

Optochemical sensor

Life of this patent

Abstract

Claims19