Device for testing the quality of rope-like materials

摘要

The device for testing the quality of rope-like materials in the form of yarns, rollings, fiber bands and the like by means of a measuring device which has a microwave resonator and devices for determining the displacement of the resonant frequency and the widening of the resonance curve due to the rope-like material and mechanical devices for transporting the rope-like materials through the measuring volume of the microwave resonator is distinguished by the fact that the microwave field is homogeneous in the measuring volume and that the measuring device is a microwave generator which is constructed for measuring the mass per length and the moisture of the rope-like materials.