A device for the continuous determination of the uv - transmission smooth or flowing media

摘要

The same UV radiation source (16) is used for both the measurement of the irradiation in the flowing medium (12) and in a reference space (20). A device for the continuous determination of the UV transmission of running or flowing media (12), such as drinking water or purified sewage, comprises: measuring and evaluating the irradiation of a UV radiation source (16) which irradiates an area of the medium; areas of identical UV irradiation of the emitting area of the UV radiation source extend into or adjoin both the flowing medium and a reference space (20); two UV sensors (22,24) are directed at the areas of identical UV irradiation; one UV sensor is positioned within the flowing medium and the other UV sensor is positioned in the reference space, they are both connected to a measuring and evaluation circuit (30) which compares and evaluates the signals of the UV sensors.