Optical sensors for strip edge measurement EMG EVK & strip center measurement EMG EVM

EMG EVK & EVM

Our optical sensors EMG EVK and EVM are the right choice for your non-contact strip edge and centre control: optically precise, robust against interference – and reliable during operation.

Function principle

The sensor positioner for strip edge EMG EVK and the sensor positioner for strip center EMG EVM are used in the non-contact strip edge and strip center control of metal strips, respectively. Robust against external interference, EMG EVK and EVM optical sensors detect changes in strip edge and center position. 

The strip edge is optically detected by a motor-driven receiver adjustment unit, which is equipped with an alternating light receiver that detects lateral displacement of the strip edge.

Additional components of the EMG EVK sensor positioner for edge and EMG EVM for strip center are linear light transmitters.

Customer benefits
  • Precise and reliable measurement accuracy, as insensitive to height variations of the strip
  • Distance between sensor and light source up to 4 m
  • High reliability and easy operation
  • Short commissioning time due to quick and easy installation (minimum installation space)
  • Active dirt compensation due to reference measuring principle
  • Can also be used in harsh environments (e.g. pickling, cold rolling mill)
  • Immunity to ambient light due to use of HF alternating light

EMG EVK and EVM – this stands for: contactless, large sensor distances, precise, immune to ambient light – solid technology that has proven itself.

Jens Kathol
Product Manager Strip Guiding
 Jens Kathol