A contact-based technique for measurement of membrane tension

Abstract Membranes are used widely in engineering applications, including the porous membranes fuel cells and ventilation systems. In order to understand mechanical behavior of membrane, one should know loads acting on it, tension applied it during manufacturing process. This study describes a novel contact-based method measure pre-tension for such as membrane energy exchangers, where optical access is limited. The involves direct measurement location under various pressures, using probe, inferring by comparing results with theoretical models. technique validated measuring pre-tensioned known values. RMS deviation between measured set 0.55 N m −1 , which approximately 3% typical exchanger.