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Product
High Elongation Extensometers
Model 3800
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Jinan Testing Equipment IE Corporation
The main body of this unique extensometer remains stationary during testing, held in position by the adjustable magnetic base included. Only the very light, small traveling heads move as the sample elongates during a test. These attach to the sample with small spring clips. Each head pulls a cord out from the extensometer as the head moves. These models use high precision, low friction potentiometers, and, as a result, have a wide range of factory selectable outputs. The extensometer is driven by an excitation voltage and has output proportional to the input. They can be provided with high level outputs (approximately 2-8 VDC) or ones that mimic strain gaged devices (2-4 mV/V). When set to mimic strain gaged extensometers, the Model 3800 can be used with virtually any signal conditioning electronics designed for strain gaged sensors. The potentiometers employ a hybrid wire wound around conductive plastic, which provides excellent long term stability. The output from the extensometer is readily interfaced with most existing test controllers, and may be directly input to data acquisition systems and chart recorders. Please let us know at the time of order what type of output and connector you require.
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Product
Contactless Video Extensometers
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Jinan Testing Equipment IE Corporation
Deformation measurement of samples during material testing with use of the Video extensometer MercuryRT allows applying multiple virtual probes (Movement Sensors)on markers and advanced image featuresto be tracked, including the natural pattern of the sample surfaces.The common resolution of standard system is within 500 nm and 5 m. The system fulfils class 0.5 or B-1 of classification according to ISO 9513 and ASTM E83. In certain camera use case, the system resolution reaches the level of 100 nm - 500 nm and system fulfils the class 0.2. The strain resolution can reach 10 microstrains. Material testing,Component testing ,FEA validation,Vibrography .
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Product
Long Travel Extensometers
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The first type is specifically aimed at the plastic and rubber industries to provide accurate readings of strain and extension over a large extension range. The unit, incorporating two clamping arms and precision potentiometers, produces a DC voltage proportional to the distance between the arms. This generates accurate readings of percentage strain and allows additional parameters such as yield point and break points to be calculated when used with NEXYGENPlus software.
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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 Transverse Extensometers (700 C)
Model 7675
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Jinan Testing Equipment IE Corporation
Designed for transverse or diametral strain measurement in environmental chambers where the entire extensometer must be exposed to elevated temperatures. These capacitive extensometers may be used up to 700 C (1300 F) without any cooling.
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Product
Transverse and Diametral Extensometers
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3 models cover most any test requirement and can be used with axial extensometers at the same time. Miniature and standard units, also r-value units. Available options cover temperatures from -265 to +200 C (-450 to +400 F).
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Product
High-Temperature Extensometers < 600 °C Capacitive
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Instron® High-Temperature Extensometers are perfect for testing advanced composites, metals, polymers and other materials at elevated temperatures. This series incorporates a capacitive sensor that does not require any cooling. The extensometers come standard with a sensor conditioner unit providing a 0-10 V output with exceptionally low noise. These extensometers can be attached to round and flat specimens to perform tensile, compression, and cyclic tests.
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Product
Bi-Axial or Axial Averaging Extensometers
Model 3560
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Jinan Testing Equipment IE Corporation
This extensometer is ideally suited for testing anisotropic materials such as advanced composites as well as for general purpose tests like determining Poisson’s ratio. The Model 3560BIA uses a design unique to Epsilon, where the knife edges remain parallel during the displacement. This approach greatly reduces crosstalk between axes and allows use on round or flat specimens with equal ease. These extensometers are very easy to mount. Integral springs hold the unit on the test sample. The parallel multiple flexure design makes these units very durable.The Model 3560AVG reads axial strain only as a single averaged output. It may also be supplied with two independent outputs, one measurement from each side of the specimen. This set-up is most commonly required when an indication of specimen bending is desired. The second version, the Model 3560BIA, includes both the averaged axial strain and the transverse strain. Again, this may also be configured as dual independent axial readings, which results in a three channel extensometer.The Model 3560 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. The signal conditioning electronics for the extensometer is typically included with the test machine controller or may often be added. In this case the extensometer is shipped with the proper connector and wiring to plug directly into the electronics. For systems lacking the required electronics, Epsilon can provide a variety of solutions, allowing the extensometer output to be connected to data acquisition boards, chart recorders or other equipment.
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Product
Contacting Extensometers
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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 Self-Supporting Furnace Extensometers (1200 C)
Model 3448
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Jinan Testing Equipment IE Corporation
Epsilon developed this unique high temperature extensometer for testing metals, ceramics, and composites at the high temperatures produced by furnaces and induction heating systems. A combination of features make these extensometers easier to use and better in performance than other similar high temperature extensometers.The units are held on the specimen by light, flexible ceramic fiber cords. These make the extensometer self-supporting on the specimen. No furnace mounting brackets are required. The side load on the test sample is greatly reduced because of the self-supporting design and light weight of the sensor. Most materials testing furnaces with a side cut-out for an extensometer will readily accept a Model 3448. For induction heating systems, a different ceramic cord placement allows the extensometer to easily pass between the coils.The combination of radiant heat shields and convection cooling fins allow this model to be used at specimen temperatures up to 1200℃ (2200°F) without any cooling. An optional tiny air fan does enhance stability at the highest temperatures and is recommended for the highest accuracy and for tests with small elongations. The fan comes with a magnetic base for support so it can be mounted at any convenient location near the extensometer. Fan cooling is not generally needed for induction heated systems. High purity alumina ceramic rods are used. These are available in lengths as required to fit your furnace. A spare set is included with every extensometer. Specify chisel, vee chisel or conical contact points as desired.Most units operate equally well in tension and compression. Thus tensile, compression and cyclic tests like low cycle fatigue can all be performed with a single unit.For vacuum furnaces, special models are available. Epsilon can also provide a radiant heat transfer cooled version. This requires that the extensometer module be surrounded by a water cooled enclosure with a front slot for the ceramic rods.
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Product
Transverse (Diametral) Extensometers
Model 3575
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Jinan Testing Equipment IE Corporation
Designed for general purpose transverse or diametral strain measurement on axially loaded specimens. This model may be used simultaneously with the model 3542 axial extensometer.
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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
Bolt Extensometers for Proof Load Testing
Model 3565
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Jinan Testing Equipment IE Corporation
The Model 3565 uses hard conical points to contact the bolt at the center of the head and at the bottom. It is fully adjustable for different length bolts ranging from 25 mm (1 inch) in length to 150 mm (6 inches) standard. Extension beams are available for longer bolts. The standard maximum measuring range is 1.25 mm (0.05 inches). Generally, on longer bolts this extensometer will be self-supported without requiring any centering marks or punch marks on the bolt. For shorter bolts these marks may be required. If the conical pins are sharp, marks are often not needed even on the shortest bolts.The extensometer has a zero adjustment screw to adjust the length between the contact pins. This is used to set the output voltage to zero, which corresponds to the correct starting position for the test. It also includes a breakaway lower arm. In the event a bolt should fail, the breakaway arm snaps free, helping to prevent damage to the extensometer. This is easily re-installed. In the event that bolt failures are likely during a test, it is recommended the user attach a cord around the upper part of the beam and tie the other end to the test frame to prevent the extensometer from falling. The conical point contacts included with the extensometer are made from tungsten carbide.The Model 3565 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. The signal conditioning electronics for the extensometer is typically included with the test machine controller or may often be added. In this case the extensometer is shipped with the proper connector and wiring to plug directly into the electronics. For systems lacking the required electronics, Epsilon can provide a variety of solutions, allowing the extensometer output to be connected to data acquisition boards, chart recorders or other equipment.
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Product
Submersible Extensometers
Model 4030
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Jinan Testing Equipment IE Corporation
The Model 4030 extensometer uses a special LVDT-like sensor to measure strains on samples submersed in water or other compatible liquids. The unit is provided with the signal conditioning electronics. The extensometer is a semi-custom design, which is available in smaller measuring ranges up to 5 mm (0.2 inches). Clip-on (COD) style designs are also available.
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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
Diametral Extensometers for Rock and Concrete Testing
Model 3975
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Jinan Testing Equipment IE Corporation
Designed for accurate measurement of small diametral strains such as those required to determine Poisson’s ratio of rock, concrete and asphalt samples. The units are designed to be used in conjunction with the Model 3542RA axial averaging extensometer.
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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
Miniature Axial Extensometers
Model 3442
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Jinan Testing Equipment IE Corporation
Weighing as little as 8 grams, these miniature extensometers are designed to have very low operating force with minimal specimen influence. All use an improved version of Epsilon’s dual flexure design which makes them very rugged for their size. With a module height of 15.2 mm (0.6 inches), they will fit in the limited space between grips that is typical with small test samples. Gauge lengths can be as short as 3 mm or as long as 50 mm. A newly designed gage setting pin and assembly allows the gauge length to be set accurately and repeatably to ASTM and ISO requirements for all gauge lengths. Reengineered quick attach wire forms provide simple and secure specimen attachment. Wire forms for round and flat specimens are included, as well as flat, 3-point, and vee knife edges. The wire forms may be removed to enable mounting using elastic bands or springs. A tethering attachment point provides fall protection and enables counterbalancing of the extensometer’s weight when testing delicate specimens.Model 3442 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.
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Product
Miniature Transverse (Diametral) Extensometers
Model 3475
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Jinan Testing Equipment IE Corporation
A miniature extensometer designed for general purpose transverse or diametral strain measurements on small or thin specimens. May be used simultaneously with the Model 3442 miniature axial extensometers or the Model 3542 axial extensometers.
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Product
Rugged, Long Gauge Length Extensometers
Model 3543
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Jinan Testing Equipment IE Corporation
With over 15 years of proven reliability in the world’s most demanding testing environments, the Model 3543 extensometer is designed to survive in those applications where standard axial extensometers would not. Designed by Epsilon, the Model 3543 was created to survive specimen failure by separating into two halves, thus preventing permanent damage to the module body. During operation, the upper half of the extensometer pulls out of the main body. Tapered measuring beams activate strain gaged flexures within the unit. This unique design allows long measuring ranges, yet retains compatibility with electronics for strain gaged transducers. These models offer high accuracy and are light weight but rugged, with low operating force. They are tension only units.The units have hardened tool steel knife edges. Standard quick attach wires provided with the extensometer work on flat specimens up to 12 x 31 mm (0.5 x 1.25 inch) and on rounds up to 25 mm (1 inch) diameter. Optional quick attach kit wire forms are available for use on larger samples. See Model 3542L for long gauge lengths with smaller measuring ranges.The Model 3543 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. The signal conditioning electronics for the extensometer is typically included with the test machine controller or may often be added. In this case the extensometer is shipped with the proper connector and wiring to plug directly into the electronics. For systems lacking the required electronics, Epsilon can provide a variety of solutions, allowing the extensometer output to be connected to data acquisition boards, chart recorders or other equipment.
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Product
High Temperature, Low Strain, Extended Performance Capacitive Extensometers
Model 7650A
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Jinan Testing Equipment IE Corporation
Model 7650A extensometers measure strains with extremely high precision due to their design features and low strain range. All models are capable of tension and compression strain measurement, and may be used for fatigue testing under fully reversed load and strain conditions at frequencies up to 10 Hz.All 7650A 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 provide high accuracy, high resolution measurements and perform high temperature fatigue testing at the highest possible frequencies. 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 for specimen contact when testing to 1200℃ (2200°F). Silicon carbide rods are used for the 1600℃ (2900°F) high temperature option.The Model 7650A is often customized for specific test needs. Contact Epsilon for a configuration that matches your requirement.
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Product
Extensometers
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Extensometers measure strain, the change in length of a specimen divided by the original length (gauge length) of the specimen. Tinius Olsen offers wide range of extensometers based on your testing needs including video, optical and physical contact with specimen.
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Product
Environmental Chambers
3119-600 Series
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The Instron environmental chambers are precision thermal enclosures designed to integrate with static or dynamic test systems, enabling evaluation of material behavior under controlled non-ambient conditions. They circulate hot or cold air over specimens and grips using forced-convection to maintain stable temperatures. These chambers are available in a variety of standard sizes (or can be customized), and are compatible with extensometers, grips, and fixtures to provide a turnkey solution for temperature-dependent testing from subzero to elevated conditions.
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Product
High Temperature Diametral Extensometers (1000 C)
Model 3580
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Jinan Testing Equipment IE Corporation
This model is for diametral strain measurement with furnace and induction heating systems. Quartz rods and water-cooling allow the unit to be used for high temperature testing of metals, ceramics and composites. With induction heating, this model often can be used without water-cooling. When used in furnaces, the extensometer is often mounted directly to the furnace side cut-out. Optional load frame mounting brackets are available for supporting the extensometer in cases where furnace mounting is not possible. These optional mounts are used with induction heating or furnace systems. The Model 3580 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. The signal conditioning electronics for the extensometer is typically included with the test machine controller or may often be added. In this case the extensometer is shipped with the proper connector and wiring to plug directly into the electronics. For systems lacking the required electronics, Epsilon can provide a variety of solutions, allowing the extensometer output to be connected to data acquisition boards, chart recorders or other equipment.
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Product
Automatic Contacting Extensometry
AUTOX750
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The Instron AutoX750 automatic contacting extensometer offers automated, high-precision strain measurement by motor-driven contact arms to engage specimens—eliminating manual setup while maintaining sub-micron accuracy over long travel. They integrate seamlessly with Instron testing frames and software to reduce operator error, speed cycle times, and ensure repeatable, standards-compliant strain data for metals, plastics, composites, and elastomers.
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Product
Fiber Optic Extensometer
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Versatile and reliable fiber optic extensometer. Designed for harsh environment, these multipurpose extensometers are packaged to fit the challenging environment of any structure monitoring applications.
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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
Non-Contact Digital Video Extensometer
TRViewX
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TRViewX is an advanced non-contact extensometer that offers high-measurement accuracy, is capable of measuring width changes, and is applicable to a wide variety of materials testing applications. In particular, due to the non-contact design, TRViewX is perfect for measuring films, foils, and other thin or narrow materials without affecting the specimen during testing. Furthermore, TRViewX can be used to measure displacements during atmosphere-controlled testing in a thermostatic chamber. TRViewX provides high-accuracy measurements in accordance with ISO 9513 Class 0.5 and JIS B 7741 Class 0.5 for elongation measurements and ISO 9513 Class 1 and JIS B 7741 Class 1 for width measurements. It is compliant with plastic tensile testing standards, including ISO 527, JIS K7161, and ASTM D638, even supporting 75 mm gauge length specimens (type A1 specimens) specified in ISO 527 and JIS K 7161.
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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
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.
