Modellbasierte Entwicklung pneumatischer Abstandssensoren für prozessintegrierte Messungen

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Production metrology is crucial in modern manufacturing, encompassing material testing, operational testing, and geometrical product specification. Three main approaches are employed for geometrical inspections: tactile measurements, optical instruments, and pneumatic distance sensors. Tactile measurements are the oldest technique, while optical instruments are used for high-quality 3D measurements. This research focuses on pneumatic sensors, which are increasingly vital due to the rising demand for high-quality products. Unlike traditional methods, pneumatic sensors can operate effectively in polluted environments and offer a self-cleaning feature, enabling simultaneous manufacturing and measurement. This allows for quicker detection and resolution of manufacturing issues. However, knowledge about pneumatic sensors is limited compared to tactile and optical sensors, necessitating further research to address gaps in understanding spatial resolution, dynamic behavior, and uncertainty. The stability of key components in pneumatic sensors also requires improvement. The research discusses these challenges and proposes solutions through theoretical and experimental investigations. Pneumatic sensors are analyzed using fluid mechanics principles, specifically five conservation equations, which can be simplified into gas dynamic equations for this application. A key objective of this work is to validate and enhance the existing theore