The individual elements are glued to reduce the influence of
clamping and tested at a gauge length of 3.2 mm. The cross-sectional
area of each element is measured by means of a
laser beam. The sample is then automatically transferred to
the tensile testing system. After the tensile test, the sample
containers are removed and the next samples are tested
automatically. Ninety individual elements are prepared in
advance and are inserted into the system automatically by
the auto sampler. The software determines the strength of
surfaces in N/mm2. In consideration of the density, finenessrelated
values in cN/tex can be calculated. The analysis
programme allows the determination of the true zero point,
elongation at break, Young’s modulus and breaking energy.