Process and apparatus for automatic, continuous, destruction-free checking, especially of stoneware pipes

摘要: Process and apparatus for a non-destructive continuous automatic quality control system monitoring stoneware pipe like objects, where the is excited with vibration generator up to resonance frequency vibration, this being measured receiver, thereupon registered compared values of calibration curve. During excitation measuring, borne on two turn crosses coated rubber. The at maximum least one antinode vibration. transported by conveyor belt having rollers. A photoelectric scanning measures nominal diameter preadjusting position receiver.