Optical gauges for precise thickness measurements of metals

Thickness measurement of metal strips and plates is possible by using radiometric as well as laser-based measurement methods. In recent years, laser-based thickness measurement has become increasingly important and is equally appreciated in the steel and aluminum industries. This is due to the numerous advantages that laser thickness measurement brings: improved measurement accuracy, all alloys without complex calibration, thin and thick metal strips - and last but not least easy operation without radiation protection measures.