Axial / torsional extensometer
9.5 - 25.4 mm | Model 3550
Epsilon Technology
The Model 3550 extensometer is most often used on round specimens tested in bi-axial test machines capable of simultaneous axial and torsional loading. The extensometer is often customized for particular applications. All units are capable of bi-directional displacement, so they may be used for cyclic testing under fully reversed loading conditions. The standard sized model is self-supporting on the specimen, and works on specimens from 0.375 to 1.000 inches (9.5 to 25.4 mm). The included conical point contacts are made from tungsten carbide. Their unique design directly measures the surface shear strain angle, which allows operation on a wide range of specimen diameters without changing calibration.
All models are designed specifically to minimize crosstalk between axes and to provide high accuracy measurements. All feature the dual flexure design common to other Epsilon extensometers.
Available options cover temperature ranges from -265 °C to 175 °C (the standard temperature range is -40 °C to 100 °C). Both inch and metric versions are available. A wide range of gage length and measuring ranges are available. Because these transducers are often used for specialized tests, contact Epsilon with your specific test needs
