Sensor arrangement and method for the dew point of measurement based on miniaturized peltier elements

摘要

Dew point sensor element for the dew point determination witha peltier element with a cold side (1) and one of these cold side (1) opposite hot side (3),an electrode structure (4, 4 '') for the determination of the entry time point of a moisture condensation,a temperature sensor (6, 6 '') for measuring the temperature to the starting point of the moisture condensation andan actively heatable heating element (5, 5 '') for the evaporation of condensate, after the determination of the entry time point of the moisture condensation,the electrode structure (4, 4 ''), the temperature sensor (6, 6'') and the heating element (5, 5 '') directly to the cold side of the peltier elementare arranged adjacent,characterized in thata portion (1b) of the cold side (1) of the peltier element by means of a thermal insulation region (1c) (insulation has section), wherein a first electrode structure (4 '') in the direction of the hot side of (3) to the cold side (1) when seen over the of or behind the thermal insulation region (1c) and directly adjacent to the thermal insulation region (1c) in a portion (1b) of the cold side (1) of the peltier element is arranged and..