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Some observations on the ‘research’ extensometer
Author(s) -
Hlynka I.
Publication year - 1955
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740061206
Subject(s) - extensometer , extension (predicate logic) , materials science , composite material , deformation (meteorology) , load cell , structural engineering , engineering , computer science , programming language
A comparative study of the ‘Research’ Extensometer and the Brabender Extensograph has been made using three different schedules for the test samples and three types of dough holders with the Extensometer. In general, differences in the procedure of handling dough‐pieces cause more effect on the shape of the load‐extension curve than do differences between machines. Impaling of the dough directly on the Extensometer modifies the shape of the load‐extension curves: this is attributed to structural activation of the dough in the impaling process. An Extensometer dough holder is described which permits the dough to be rested between impaling and stretching. For structural relaxation studies the range of extensibility provided by the Extensometer must be increased by lengthening the drive shaft.