Biaxial Extensometer for Axial and Transverse Strain Measurement | ASTM E83 Class 0.5

The Three-Way Extensometer is a high-precision contact-type strain measurement sensor capable of simultaneously measuring two independent axial strains and one transverse (radial) strain, providing three-channel output signals. Utilizing the resistance strain gauge principle and cantilever beam structure, it precisely captures longitudinal deformation and lateral contraction of materials during tensile or compression testing. It is widely used for determining key mechanical parameters including elastic modulus E, proof plastic extension strength Rpxx, proof total extension strength Rtxx, various elongation rates, strain hardening index n, and Poisson's ratio μ. Compliant with ASTM E83 Class B-1 and ISO 9513 Class 0.5 accuracy standards, it is an ideal accessory for universal testing machines