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AssigneeInstytut Wysokich Cisnien Polskiej Akademii Nauk
InventorsWitold Lojkowski, Donats Millers, Janusz Fidelus, Larisa Grigorieva, Agnieszka Opalinska, Urszula Narkiewicz, Wieslaw Strek
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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 (2) 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 (3) and adapted to induce luminescence of the zirconium dioxide, registering the time dependence of the luminescence intensity of the ZrO2 using a photodetector (4) and a recorder (5), 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.
Method of measuring partial pressure oxygen in gases by exciting luminescence of a sensor, characterised in that nanocrystalline zirconium dioxide in a calibrated sensor is contacted with a gas to be measured and is illuminated by a UV light impulse, which induces luminescence of the zirconium dioxide, then the luminescence intensity time dependence is being registered, the luminescence intensity of a pulse is being determined and the result obtained is compared with calibration results of the luminescence intensity as a function of the partial pressure of oxygen for the sensor temperature at a given time.
A method of measuring partial pressure oxygen in gases by exciting luminescence of a sensor
Dependencies are inferred from the claim text.