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Product
High Temperature XY Planar Biaxial Extensometer 1200 C or 1600 C)
Model 7651
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Jinan Testing Equipment IE Corporation
Model 7651 extensometers measure combined in-plane strains in flat cruciform specimens tested in machines capable of simultaneous X and Y (perpendicular) axial loading and on standard flat samples tested in pure tension. All models are capable of bi-directional displacement in both axes and may be used for strain-controlled fatigue testing under fully reversed load and strain conditions at frequencies up to 10 Hz.All 7651 models mount rigidly on the load frame and incorporate slide mounting to bring the extensometer into contact with the specimen. The gauge length is set automatically before mounting on the test specimen, which allows for hot mounting after thermal equilibrium has been reached.These units are specifically designed to eliminate crosstalk between axes and to provide high accuracy, high resolution measurements. They incorporate capacitive sensors for low operating force and include electronics with programmable filtering and multi-point linearization for improved performance and accuracy. The overall design minimizes, and in many cases virtually eliminates, any influence from common lab environment vibrations.These water-cooled extensometers are equipped with high purity alumina rods with conical rod tips for specimen contact when testing to 1200℃(2200°F). Silicon carbide rods are used for the 1600℃(2900°F) high temperature option.
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Product
Averaging Axial Extensometers for Large Compression Samples
Model 3542RA
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Jinan Testing Equipment IE Corporation
Designed primarily for compressive strength tests on rock, concrete and other large compression samples, this model measures axial strain on opposite sides of the test specimen, and the output is an average of the two readings. Gauge lengths from 1 to 8 inches (25 to 200 mm) and measuring ranges from 0.050 to 0.250 inches (1.2 to 6 mm) are available.
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Product
Long Travel Extensometers
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AMETEK Sensors, Test & Calibration
We provide two long travel extensometers for materials testing; the EZ250Plus and the EX800Plus.The second type is suitable for use with rigid, semi-rigid and ductile materials. The extensometer is supplied with a universal voltage external power supply unit, a loom and a connector to fit a range of machines, as well as a mounting stand.
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Product
Long Travel Extensometer
XL
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The Instron model XL (long travel) extensometer is a precise device for measuring strain in highly extensible materials such as elastomers, semi-rigid plastics and films. Designed for use with electromechanical testing instruments, Instron XL units can be used to measure specimens elongation's up to 10 in or 250 mm. An optional of 15 in or 375 mm travel is also available.
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Product
Non-Contacting Video Extensometer
AVE3
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The AVE3 is Instron’s most advanced extensometer, engineered for high-precision, non-contact strain measurement across a wide range of mechanical tests—including tension, compression, and flexure. Its adaptable design accommodates various specimen types, sizes, and elongation ranges, making it ideal for everything from delicate films to robust metals. By eliminating the need for clip-on devices, the AVE3 streamlines setup and ensures uninterrupted data collection through specimen failure, even in high-energy break scenarios, such as composites. Compatible with environmental chambers and fluid baths, it supports non-ambient testing with ease. With compliance to ISO 9513 and ASTM E83 and a fast 500 Hz data rate, the AVE3 delivers reliable performance for demanding testing standards.
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Product
Deflection Gauge Extensometers
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We supply a wide range of deflection gauge extensometers ideal for measuring deformation in three and four point bend tests and in compression testing applications.
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Product
Rock, Concrete and Asphalt Extensometers
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7 models cover axial, circumferential and diametral testing on aggregate material.
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Product
Contacting Extensometers
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AMETEK Sensors, Test & Calibration
The contacting extensometers are designed for accurate strain and extension measurement of a material up to a maximum sample thickness of 25 mm.
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Product
High Temperature Un-Cooled Extensometers (700 C)
Model 7642
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Jinan Testing Equipment IE Corporation
These extensometers use a high-temperature capacitive sensor and do not require any cooling. They will operate up to the maximum temperature limit of most environmental chambers used in materials testing. The Model 7642 is ideal for testing composites, metals and high temperature polymers in tensile, compression or cyclic testing. All units can be displaced in both compression and tension. The extensometer is supplied with the advanced DT6229 controller. The standard output is 0-10VDC analog signal, factory calibrated with the extensometer. This system provides a number of functional enhancements, including high speed digital output, built in calibration and tare functions, analog and digital filters, and more.
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Product
Extensometers for Simple Performance Testing of Asphalt
Model 3909
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Jinan Testing Equipment IE Corporation
Designed for measuring axial displacements in the simple performance tests prescribed by NCHRP Report 465, and determining dynamic modulus of hot mix asphalt per AASHTO TP062.
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Product
Rebar Coupler and Rebar Splice Extensometers
Model 3567
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Jinan Testing Equipment IE Corporation
Extensometers for measuring elongation of rebar coupler, splicer, and sleeve assemblies. Use for tension, cyclic, slip, and differential elongation tests.
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Product
Averaging Clip-on Extensometer
2650 Series
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The Instron 2650 Series Biaxial Extensometers are ideally suited for testing a wide range of materials, including polymer matrix composites, metals, and plastics over a range of temperatures. Two sensors measure axial strain on opposite sides of the specimen. Versions are available which provide either a single averaged axial output or 2 independent axial outputs. The extensometers meet the calibration requirements of ASTM E83 class B1, ISO 9513 class 0.5, and ISO 527.











