Abstract:A system is described for automatic collection of stress–strain data for polymeric films on magnetic tape for subsequent automatic data reduction and computation of a variety of stress–strain parameters. Two shaft analog‐to‐digital encoders attached to a conventional tensile tester feed digital information to an incremental pulse recorder which stores all stress and strain data in two channels on 0.625‐in. magnetic tape. Specimen information and test constants are inserted by the operator through a keyboard lo… Show more
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