Epsilon - Model 3575 -Transverse (Diametral) Extensometers

Self-supporting on the test sample, these extensometers will work on any width or diameter specimen from 0 to 25 mm (0-1 inch). They are commonly used for measurement of Poisson’s ratio, for transverse measurements with anisotropic materials like many composites, and for sheet metal testing such as r-value determination. Most often they are used simultaneously with Epsilon’s axial extensometers, and together these extensometers are suitable for measuring Poisson’s ratio per ASTM E132 with most materials and specimens.

These units easily clip onto the sample and are held in place with an integral spring. Rounded contact surfaces maintain the position on the specimen. All are high accuracy strain gaged units, compatible with most test controllers.

Model 3575 extensometers are strain gaged devices, making them compatible with any electronics designed for strain gaged transducers. Most often they are connected to a test machine controller, and Epsilon will equip the extensometer with a compatible connector wired to plug directly into the controller. For systems lacking the required electronics, Epsilon can provide a variety of solutions for signal conditioning and connection to data acquisition systems, chart recorders, or other equipment.

• May be left on through specimen failure.
• Full bridge, 350 ohm strain gaged design for compatibility with nearly any test system.
• All models will measure both positive and negative displacements.
• Easy to mount, with integral springs to keep the extensometer on the sample.
• Self-supporting on the specimen.
• All standard units have linearity readings of 0.20% or better.
• Includes the Epsilon Shunt Calibration System for on-site electrical calibration.
• Rugged, dual flexure design for strength and improved performance. Much stronger than single flexure designs, this also allows cyclic testing at higher frequencies.
• Includes high quality foam lined case and spare set of tool steel knife edges.

• Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max.
• Output: 2 to 4 mV/V, nominal, depending on model
• Linearity: ≤0.20% of full scale measuring range, depending on model
• Temperature Range: Standard (-ST) is -40 °C to +100 °C (-40 °F to 210°F)
• Cable: Integral, ultra-flexible cable, 2.5 m (8 ft) standard
• Specimen Size: Works with samples up to 25 mm (1 inch) width or diameter
• ce-certified

• Connectors to interface to nearly any brand of test equipment
• Specialty Knife Edges