Abstract
Process analysis and process control has attracted increasing interest in recent years. The development and application of process analytical methods is a prerequisite for the knowledge-based manufacturing of industrial goods, and allows for the production of high-value products of defined, constantly good quality. Discussed in this chapter are the measurement principle and some relevant aspects and illustrative examples of online monitoring tools as the basis for process control in the manufacturing and processing of thermosetting resins. Optical spectroscopy is featured as one of the main process analytical methods applicable to, among other applications, online monitoring of resin synthesis. In combination with chemometric methods for multivariate data analysis, powerful process models can be generated within the framework of feed-back and feed-forward control concepts. Other analytical methods covered in this chapter are those frequently used to control further processing of thermosets to the final parts, including: dielectric analysis, ultrasonics, fiberoptics, and fiber Bragg grating sensors.
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