Shadow sensors

Light-band shadowing measurement​ - Thickness measurement

A light-band is directed onto a measuring object running over a roller. According to the thickness of the measuring object, the light-band is partially shadowed; this is measured. An eddy current sensor measures the roller position. The material thickness of the measuring object can be determined from the difference of both measured values.

The shadowing sensor is a good choice for structured flexible products up to a thickness of approx. 10 mm.

LED micrometer Calipro DMS for thickness measurement

Calipro DMS

Measurement of thickness (contactless)

ThicknessMaterial thickness

LED micrometer

Calipro DMS measures the material thickness of the product using a light curtain. It is insensitive to colour, transparency and opacity as well as largely independent of the…