OPTICAL SENSORS FOR IN-PROCESS MONITORING: CONCEPTUAL CONSIDERATIONS FOR THE IMPLEMENTATION OF OPTICAL SENSORS INTO THE PRODUCTION ENVIRONMENT

D. Fleischle, W. Lyda, F. Mauch, F. Schaal, W. Osten

Abstract

In this contribution some conceptual considerations regarding the implementation of optical sensors for process control will be given. Therefore first a classification of monitoring systems related to the level of process integration is made. In a second step there will be a description of relevant features for the characterization of the process state. Furthermore there a description of factors resulting from the machining process that have possibly an impact upon the measurement result is given. <BR />As an exemplary implementation of an optical sensor near the machining process a concept for a robust and miniaturized sensor probe based on chromatic confocal microscopy with gradient index (GRIN) lenses will be presented.

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IMEKO TC

TC14 - Measurement of Geometrical Quantities

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