Sikora Ag

Klaus Bremer

Harald Sikora

Harry Prunk

A device and method for reliably and accurately detecting impurities in a bulk material comprising two opposing tunnel sections arranged such that a bulk material stream flows between or through the tunnel sections. At least one of the tunnel sections has a lighting means configured for indirectly illuminating the bulk material stream. Furthermore, an optical detector receives the light emitted from the illuminated bulk material. The lighting means and optical detector are configured about the tunnel sections such that the optical radiation optical radiation does not pass directly from the lighting means to the bulk material, nor from the bulk material stream to the optical detector An evaluation apparatus, responsive to measured data from the optical detector, identifies impurities in the bulk material. The invention moreover relates to a method for operating such a device.

Device and method for investigating bulk material

A method for measuring the centricity of a conductor in an insulating casing, in which the string formed by the conductor with its insulating casing is moved along a conveying direction. A device for measuring the centricity of a conductor in an insulating casing includes an inductive measuring apparatus, first and second optical measuring apparatus and an evaluation apparatus.

Method and device for measuring the centricity of a conductor in an insulating casing

A device for controlling the manufacture of a medium or high voltage cable in particular of the inner and outer semi-conducting layers. For control purposes the current or capacitance is measured by a measuring electrode encircling the cable and connected to a high frequency source. Equipotential electrodes join the measuring electrodes on both sides.

Growing community of inventors

Grasberg, Germany

Klaus Bremer