Smart Pressure Film Sensor for Machine Tool Optimization and Characterization of the Dynamic Pressure Field on Machine Surfaces

Abstract Knowledge of thermal interactions with the environment is essential for improving performance machine tools. Therefore, it necessary to detect and quantify convective heat flows at tool surfaces, that occur in workspace as a result cutting fluid use or outside due active air flow. Thin-film sensors made shape memory alloys integrated small temperature are suitable detecting very fine pressure differences can be used estimate transfer. By measuring differences, dynamic field surface determined. Since correlates flow field, conclusions drawn about velocity. This leads more profound extended possibilities match fields from CFD simulations measured data. At same time, also recorded by this sensor. Reference measurements free characterize knowing pressures, temperatures correlating velocity near wall, transfer coefficient Against background, paper demonstrates behavior addresses development such For purpose, sensor units developed placed network (composite several on one surface) inside workspace.