Hot Mills: Flatness Gauges

Quality Assurance in 3D

The TopPlan topometric strip flatness measuring system provides a three-dimensional representation (3-D) of the surface structure over large areas of strip. This technology adds value to the operations of:

  • Heavy Plate Mills
  • Hot Rolling Mills (including Finishing Lines & Coilers)
  • Processing Lines (including Pickling, Galvanizing, Tin Plating & Cutting/Trimming)

TopPlan is also useful for off-line quality assurance measurements taken outside of production facilities.

Key features of IMS flatness gauges are:

  • Non-contact, 3D measurement of strip flatness, residual curvature and strip width
  • High measuring resolution
  • Large measuring range
  • Flexibility to measure plate or strip that is stationary or moving
  • Flexibility to measure plate or strip at ambient or mill temperature
  • Low costs of operation and maintenance

How IMS Flatness Gauges Work

The operation of IMS TopPlan Gauges is straightforward:

  • A projector super-imposes a quadratic pattern of lines on the entire surface of the material being measured
  • A CCD matrix camera films the image continually
  • Deviations from the specification (reference level) at the strip passline, caused by the presence of waves in the middle of the material and at the material’s edges, lead to distortions in the straight lines projected onto the material's surface
  • A powerful image processing system performs mathematical analyses of the lines to determine strip flatness

Detailed information about flatness gauges is available in the IMS guide to Topometric Flatness Gauges (TopPlan)

Contact us for more information →

See IMS in Action

Flatness TopPlan - Coiler | 0:22
“If you're committed to achieving the highest degree of accuracy in your thickness measurements, we welcome a commitment to working with us.” — John Buckman
General Manager & Vice President
IMS Systems, Inc.