Anordning til måling af afbøjningen af en genstand

摘要

The invention relates to an arrangement to measure the deflection or bending of an object, preferably to measure the deflection or bending of a wind-turbine blade. According to the invention a reflector is arranged at a first position, which is assigned to a first end of the object. An antenna-system is arranged at a second position, which is assigned to a second end of the object. The antenna system contains a transmit antenna and a receive antenna, while the reflector and the antenna-system are coupled by a radio signal. The radio signal is sent from the transmit antenna via the reflector towards the receive antenna. The receive antenna is connected with an evaluation unit, which is prepared to measure the deflection between the first end of the object and the second end of the object based on the received radio signal.