Strain gauge extensometer 3543 series

axial

This model is available in gauge lengths from 50 mm (2 inches) and larger, with measuring ranges up to 100 mm (4 inches). The unique design separates into two halves and the extensometer may be left on through specimen failure. These extensometers are widely used where long samples are required. They are ideal for testing steel re-bar, weld joints, and wire materials. With many years of proven reliability, Model 3543 extensometers are designed to be left on through failure with specimens such as rebar that would damage standard axial extensometers. Epsilon designed the Model 3543 to survive specimen failure by separating into two halves, thus preventing any damage to its strain gage module. During operation, the upper half of the extensometer pulls out of the main body and tapered measuring beams activate strain gaged flexures within the unit. This unique design allows long measuring ranges yet retains compatibility with electronics for strain gaged transducers. These models offer high accuracy and are lightweight but rugged, with low operating force. They are tension only units. The units have hardened tool steel knife edges. Standard quick attach wire forms provided with the extensometer work on round specimens up to 25 mm (1 inch) diameter and flat specimens up to 12 x 31 mm (0.5 x 1.25 inch). Optional wire forms are available for use on larger samples. See Model 3542L for long gauge lengths with smaller measuring ranges and also Epsilon ONE® optical non-contact extensometers.