Abstract: A floor panel for an aircraft comprising a panel structure for transmitting forces applied to the floor panel, wherein the panel structure includes an upper cover layer, a lower cover layer, and a core assembly sandwiched between the upper and lower cover layers, and a heater layer for heating the floor panel, wherein the heater layer is provided between the upper and lower cover layers. The object of the present disclosure, to provide a possibly simple heated floor panel for an aircraft, wherein the risk of overheating and at the same time the risk of local hot spots at the heater layer is reduced, is achieved in that the heater layer is formed as a PTC-layer having a plurality of electric conductor paths interconnected to one another by a plurality of PTC-resistor paths comprising a PTC-material, wherein the electric resistance of the PTC-Material increases with increasing temperature.

Abstract: A floor panel for an aircraft comprising a panel structure for transmitting forces applied to the floor panel, wherein the panel structure includes an upper cover layer, a lower cover layer, and a core assembly sandwiched between the upper and lower cover layers, and a heater layer for heating the floor panel, wherein the heater layer is provided between the upper and lower cover layers. The object of the present disclosure, to provide a possibly simple heated floor panel for an aircraft, wherein the risk of overheating and at the same time the risk of local hot spots at the heater layer is reduced, is achieved in that the heater layer is formed as a PTC-layer having a plurality of electric conductor paths interconnected to one another by a plurality of PTC-resistor paths comprising a PTC-material, wherein the electric resistance of the PTC-Material increases with increasing temperature.

Abstract: The invention relates to a vessel system for the continuous monitoring of fluids, in particular in industrial processes, preferably by means of NIR spectroscopy, with a vessel that is disposed in a subassembly support and has an inlet opening and outlet opening as well as a beam path directed at the sample chamber. In order to facilitate maintenance, the provision is made that the subassembly support is disposed in a housing with an inlet armature and an outlet armature that pass through the housing, wherein rapidly detachable lines are provided between the inlet and outlet armature of the housing and the inlet and outlet opening of the sample chamber.

Abstract: For optical determination of ingredients of a pourable product by NIR spectroscopy, to attain replicable measurement results, the device provides that the product flows in the direction of gravity; that a valve is disposed in the conduit downstream of the measurement window and a controller is embodied to move the valve to its closed position at least for the duration of measurement. The method is distinguished in that the product flows in the direction of gravity pas a measurement site; is dammed up downstream of the measurement site in such a way that the flow comes to rest at the measurement site; is dammed up in the direction of gravity past a measurement site; is dammed up downstream of the measurement site in such a way that the flow comes to rest at the measurement site; and after the measurement, the product is removed from the stagnant segment.