Abstract
Fast surface temperature measurements are of high interest in manufacturing processes. They can be realised by radiation techniques. Main problems are various influences on the accuracy and the limited optical access of interesting measurement positions. Therefore a fast fibre-optic two-colour pyrometer with high local resolution has been developed which enables measurements of surfaces with unknown emissivities. This pyrometer has been applied in a turning process, where the fibre-optic enables different measurement positions to show the influences of cutting speed and tool wear on the temperatures.
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