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Propeller system with two cons of rotating propellers, the method for detecting of the thrust of a propeller system with two cons of rotating the propellers and wind tunnel having a model having arranged therein, a propeller system
Propeller system with two cons of rotating propellers, the method for detecting of the thrust of a propeller system with two cons of rotating the propellers and wind tunnel having a model having arranged therein, a propeller system
A propeller system (2) with two successively arranged and by a propeller gap (16) separated from one another in a propeller (4, 8), each with a propeller hub (6, 10) and at least one rotating force measuring device (22, 24) has at least two differential pressure sensors (26, 28) and an evaluation unit (31) on. The rotating force measuring devices are connected mechanically with the respective propeller and configured for this purpose, an individual force of the respective propeller thrust to detect. On or in each propeller is in each case at least one of the at least two differential pressure sensors arranged and configured for this purpose, a differential pressure between the propeller gap and the respectively opposite side of the propeller to detect. From the addition of the detected individual thrust forces and of the subtraction of gap surfaces forces, which consists of the respective detected differential pressures are based, it is possible for the evaluation unit a precise total thrust force of the propeller system determining.
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