Instytut Wysokich Cisnien Polskiej Akademii Nauk

Donats Millers

Witold Lojkowski

Janusz Fidelus

Larisa Grigorieva

Agnieszka Opalinska

Urszula Narkiewicz

Wieslaw Strek

Krzysztof Galazka

Larisa Grigorjeva

Anna Swiderska- Sroda

Krisjanis Smits

A method of measuring oxygen partial pressure in gases, such as hot engine exhaust gases, uses a calibrated luminescence sensor and comprises the steps of bringing nanocrystalline zirconium dioxide ZrO2 () in said sensor into contact with a gas to be measured, illuminating the zirconium dioxide with a UV-VIS light pulse emitted from a light source () and adapted to induce luminescence of the zirconium dioxide, registering the time dependence of the luminescence intensity of the ZrO2 using a photodetector () and a recorder (), determining a particular intensity, e.g., the maximum intensity of the registered luminescence pulse, and comparing said determined intensity with calibration data of the luminescence intensity as a function of oxygen partial pressure for the sensor temperature at the time of the measurement.

Zirconium dioxide luminescence oxygen sensor

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Riga, Latvia

Donats Millers