Eddy Current Testing of Rods by Means of a Rotor System

The inspection system is based on a basic frame, which integrates drive rollers for rod transport by default. It is designed for hosting several test stations, so the eddy current rotor system EC-130, a ULAS test system for material sorting, a ULAD test tsystem with differental probe and magnetising yoke, but also an ultrasonic system (optional). The test stations are mounted on motorized support tables (moveable horizontally and vertically). The rotor EC-130 is adjustable to the rod geometry (diameter range: 30 ... 130 mm). The high rotor speed of up to 3000 rpm allows correspondingly high transport speeds while ensuring gapless scanning.

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  • rotor head equipped with 2 differential probes (180° apart)
  • overlapping scan line (covering 110 %), non-contact
  • electronic distance compensation (DCOMP) counteracting variations of probe distance
  • adjustable to rod diameter (30 … 130 mm)
  • rotational speed: max. 3000 rpm
  • probe protection nozzle at the inlet and outlet area
  • robust basic frame
  • driven double-pinch roller (V-shaped) for rod transport
  • controllable transport speed  (0.2 … 2 m/s / 0.65 … 6.5 ft/s)
  • support tables for test stations: moveable horizontally by means of pneumatics (maintenance position) and adjustable vertically (adaption to rod diameter)
  • automatic adaption to the rod diameter by lifting the rotor system
  • automatic setting of rotational speed depending on rod diameter
  • control of transport speed
  • EloLine analysis software for automated evaluation and documentation
  • dual-channel colour marking unit (labeling of “bad” parts)

System Data

  • multi-channel eddy current instrument PL500, equipped with universal I/O interface (16 digital inputs and 16 digital outputs) to connect with the master PLC
  • rotor system EC130
  • control cabinet with industrial PC (Windows, network-compatible)
  • EloLine software
  • operating console with PLC and and touch screen
  • test mechanics (frame, support tables for test stations, driven V-rollers)
  • colour marking unit
  • sorting station with ULAS test coil, option
  • ULAD coil test unit with magnetising yoke (option)
  • ultrasonics test system (option)
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