Cenith MPS-Plus not only makes test processes extremely efficient, unlike other measurement processes it also provides highly accurate error analyses. To demonstrate, we shall compare the Cenith MPS-Plus featuring LCW technology® with a rotary probe.

Equipment required:

  • MPS electronic box including coil lead
  • Magnetization yoke PMJ
  • Test coil
  • 2 protective nozzles
  • Options:
  • Yoke stand
  • Sliding table
  • Roller guides
  • De-magnetization
  • Colour marking

Operation

Signals and parameters are set through a separate touchscreen. Alternatively, a standard monitor can be connected with a mouse/trackball. The RS232/485 can be used for control and parameter setting as a test system in conjunction with a BDE system. Test signals can also be transmitted to the BDE system via a control interface for subsequent processing (can be installed customer-specifically).

Connection to Process Monitoring System

Process monitoring systems manufacturers sometimes offer connection from the Cenith-MPS to the customer system. In this case there is no need for a terminal to be installed.

2 longitudinal errors with different depths:

LCW longitudinal: the signal height changes with the depth of the longitudinal error.

LCW transverse: the beginning and end are identified, signal height depends on the error depth.

Rotary probe: signal remains the same over the entire error length – irrespective of the error depth.

4 longitudinal errors with different depths:

LCW longitudinal: the signal length changes with the length of the longitudinal error. Very short longitudinal errors are measured as a transverse signal.

LCW transverse: the beginning and end are identified, signal height remains constant for the same error depth.

Rotary probe: constant signal over the entire error length.

1 longitudinal error as an inclusion:

LCW longitudinal: error signal over the entire inclusion length.

LCW transverse: beginning and end of inclusion are identified. The error in the middle is caused by the point of impact from the two rods.

Rotary probe: The inclusion is not identified as rotary probes only have a very low penetration depth.