The principle of gloss measurement on even surfaces is simple: the reflection of an incident light in a defined angle will be measured. However, gloss measurements often have to be carried out on curved surfaces. If the surface to be measured is not even, the following aspects should be considered. Only measurements which were carried out on exactly identically shaped surfaces can be compared. Therefore an appropriate holder for the sample and for the measuring quipment should be provided in order to alwyas locate the same measuring position on the samples.
The Swiss manufacturer of electronic and physical high precision measuring and testing equipment presents a new generation of online glossmeters. In many industries continuous recording of gloss values is a valuable tool for production monitoring to check if the quality requirements are fulfilled at any time during the production process.