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Extensometers for materials testing

Epsilon Technology Product Line

Non-Contacting

Extensometers

  • Optical and laser extensometer models for non-contacting axial tension and compression
  • Optical models may also be used in strain control and for cyclic testing at >100 Hz
  • One system for many different tests, measuring ranges, and gauge lengths

Axial

Extensometers

  • 7 models in this group cover tension, compression and cyclic testing
  • Huge variety of gauge lengths and measuring ranges
  • Temperatures from -270 to +200 °C (-454 to +400 °F)

High Temperature Axial

Extensometers

  • 5 models cover a variety of applications for high temperature testing
  • 1 un-cooled model for use inside chambers up to 700 °C (1300 °F)
  • 4 models for use with split furnaces and induction heating up to 1600 °C (2900 °F)

Fracture Mechanics Clip-On

Gages

  • 3 models cover a broad range of gauge lengths, measuring ranges and temperatures
  • For fracture mechanics and fatigue crack growth tests in compliance with various standards
  • Temperatures from -270 to +1600 °C (-454 to +2900 °F)

Deflectometers

Deflection Gages

High-Res Deflectometer 4mm Travel Model 3540
  • Widely used for 3 and 4 point bending tests, compression tests and general deflection measurement
  • May be used in any orientation

Transverse and Diametral

Extensometers

Transverse and Diametral Extensometers
  • 4 models cover most any test requirement and can be used with axial extensometers at the same time
  • Miniature and standard units
  • Extensometers for Poisson’s ratio & r-value of sheet metal
  • Options for temperatures from -270 to +200 °C (-454 to +400 °F)

High Temp. Transverse & Diametral

Extensometers

  • 1 un-cooled unit for use inside chambers to 700 °C (1300 °F)
  • 1 model for use with split furnaces and induction heating, to 1000 °C (1830 °F)

Rock, Concrete and Asphalt

Extensometers

Model 3542RA2
  • 7 models cover axial, circumferential and diametral testing on aggregate material

Averaging, Bi-Axial and Axial/Torsional

Extensometers

  • 4 models for axial averaging, axial/transverse, axial/torsional, and in-plane biaxial over a wide range of temperatures
  • Temperatures from -270 to +1600 °C (-454 to +2900 °F)

Bolt Proof, Lap Shear and Specialty

Extensometers

  • Specialized extensometers for
    • Bolt proof testing and elongation measurement
    • Elongation of rebar splice assemblies
    • Lap shear, sandwich core shear, and rigid cellular plastic shear
    • Testing while submerged in liquids

Custom

Extensometers

  • Examples of modified standard extensometers and application-specific extensometers

Knife Edges

For Extensometers

  • A complete selection of knife edge styles to match many different specimen types and applications

Interface Electronics & Signal Conditioners

Electronics

  • For customers who do not have signal conditioning as part of their test controls
  • 1 analog and 1 digital version for strain gaged sensors

Calibrators

For Extensometers

  • 2 digital models. Choice of 1 micron or 20 nanometer resolution (50 microinch or 0.8 microinch), both with 50 mm (2 inch) travel
  • 1 model for axial/torsional calibrations
  • Provided with calibration traceable to NPL

Calibration References

For Extensometers

  • A simple and inexpensive way to transfer Epsilon’s calibration of an extensometer to the signal conditioner in your test system controls

Repairs/Service

If your unit is in need of service, calibration or repair, initiate the RMA process with us and we will be happy to assist.

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Download Catalog

Our 2022 Extensometer Catalog, Version 110 is now available! Not finding something you’re looking for? Ask us about a custom quote.