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Miniature Axial Extensometers
Model 3442
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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Fiber Optic Extensometer
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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Axial Extensometer
Model 3542
Jinan Testing Equipment IE Corporation
These extensometers are designed for testing a wide range of materials, including metals, plastics, composites and ceramics. All will work in both tension and compression. The dual flexure design makes them very rugged and insensitive to vibrations, which permits higher frequency operation.They come standard with Epsilon’s quick attach kit, making it possible to mount the extensometer on the test specimen quickly and easily with one hand. The quick attach kit can be removed, allowing mounting of the extensometer with springs or rubber bands.The Model 3542 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.For gauge lengths 100 mm (4 inches) or greater see Model 3542L.
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Averaging Clip-on Extensometer
2650 Series
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.
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Semi-automatic tensile testing machine
The controller of this testing machine automatically applies an appropriate load and puts the extensometer between the gauge lines, etc. after the sample is set. It provides measurement with high repeatability.
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Rebar Coupler and Rebar Splice Extensometers
Model 3567
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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High Temperature, Low Strain Capacitive Extensometers (1200 C or 1600 C)
Model 3648
Jinan Testing Equipment IE Corporation
These extensometers use a high temperature capacitive sensor in combination with an innovative design to achieve high accuracy strain measurements in low measuring ranges not possible with other high temperature extensometers. They mount on a slide bracket (included) that can attach to the load frame of your test system; optional load frame mounting brackets are available. The overall design reduces any influence from common lab environment vibrations.The standard temperature version (to 1200℃) is supplied with high purity alumina rods. The high temperature option is furnished with alpha grade silicon carbide rods. Rods are made to order to the length required for your furnace. These units are made to order in many different gauge lengths and measuring ranges.The extensometer comes with a signal conditioner. The output is an analog DC voltage, factory calibrated with the extensometer to 0 to ±10 VDC typically. They are readily interfaced with most existing test controllers, and may be directly connected to data acquisition systems and chart recorders. Bringing the signal into a spare DC input channel (or external input) on the test controller allows the extensometer to be used for strain controlled tests like low cycle fatigue.
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Auto Calibration for Load & Extensiometer
Jinan Testing Equipment IE Corporation
TE electronic calibration module provides an easy way to calibrate load cell or extensometer and signal conditioning electronics without using a mechanical calibrator. It enables performing on-site electrical calibration and easy to periodically “spot check”, which will help ensure that the load cell and the extensometer and electronics are calibrated correctly.
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Extensometers for Simple Performance Testing of Asphalt
Model 3909
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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Deflection Gauge Extensometers
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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Circumferential Extensometers
Model 3544
Jinan Testing Equipment IE Corporation
Designed for concrete and rock compression testing or for compression tests on other large samples. This model may be used simultaneously with the Model 3542RA axial extensometers.
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Differential Transformer Type Extensometers
DT Series
ISO Class 1 Compliant Differential Transformer Type Extensometers The ISO 6892-1 standard for tensile testing of metallic materials prescribes Class 1 or higher extensometers, and JIS Z2241 prescribes Class 2 or higher extensometers when measuring withstanding pressure. The DT series includes Class 1 compliant differential transformer type extensometers, which can be used to implement test methods compliant with metal tensile test standards.
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Rock, Concrete and Asphalt Extensometers
7 models cover axial, circumferential and diametral testing on aggregate material.
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Long Gauge Length Axial Extensometers
Model 3542L
Jinan Testing Equipment IE Corporation
The dual flexure design makes the 3542L very rugged and insensitive to vibrations. These extensometers are designed for testing a wide range of materials including metals, plastics, composites and ceramics. Epsilon’s Model 3543 is recommended for applications requiring long gauge lengths and larger measuring ranges.The Model 3542L comes standard with Epsilon’s quick attach kit, making it easy to mount the extensometer on the test specimen. The quick attach kit can be removed, allowing mounting of the extensometer with springs or rubber bands.The 3542L 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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Extensometers
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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Extensometers for Indirect Tensile Testing of Asphalt
Model 3911
Jinan Testing Equipment IE Corporation
For indirect tensile testing, such as for resilient modulus, these extensometers measure the lateral deformation of specimens. They are self-supporting on the sample and clip on in seconds. The traditional way this deformation has been measured was prone to errors caused by slight rocking of the sample as it is loaded. The self-supporting design of the Model 3911 eliminates this problem. This unit will handle the dynamic pulse requirements of resilient modulus testing.The speed of mounting makes test set-up much faster than with the older method. The pivot mounting used ensures that the specimen contact pads meet the often uneven asphalt surface as well as possible. The measuring range options available allow a wide range of testing, yet can easily measure the sometimes very small displacements required.The Model 3911 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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Software
Tinius Olsen provides software to meet your R&D and quality control needs, working simply, efficiently and accurately. Horizon makes all your testing as effortless as it should be. It carries out your testing and seamlessly integrates with your processes. VSS works with Horizon to control your video extensometer testing.
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Extensometers
Instron offers one of the industry’s most comprehensive ranges of extensometers, providing precise, reliable strain measurement for virtually any materials testing application. From clip-on and automatic contacting units to advanced video and non-contacting systems, Instron’s extensometers deliver exceptional accuracy and repeatability across static, dynamic, and high-temperature environments. Designed and manufactured in-house, these solutions support global ASTM and ISO testing standards, helping laboratories achieve consistent, traceable results across metals, composites, plastics, and elastomers.
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One-Touch, Strain Gauge Extensometers
SSG-H Series
The SSG-H series of strain gauge extensometers are compliant with ISO, JIS, and ASTM tensile test standards for hard plastics and metal materials Featuring a wide elongation measurement range with the ability to measure using small gauge lengths, these lightweight, clip-on strain gauge extensometers attach to both rod and flat plate specimens.
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Contactless Video Extensometers
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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Long Travel Extensometers
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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Video Extensometers
The VE1 is a high precision video extensometer that uses a non-contacting optical measurement based on a digital camera and real time image processing to measure the longitudinal and transversal strain during tensile tests.
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Averaging Extensometers for ASTM D5656 Shear Tests
Model 4013
Jinan Testing Equipment IE Corporation
The Model 4013 extensometer meets the requirements of ASTM D5656 for measuring the strain properties of an adhesive in shear. It uses different contact point spacing compared to the extensometer shown in D5656. This makes it much easier to mount and eliminates the slippage problems associated with the design shown in the ASTM standard. The Model 4013 is available with all of Epsilon’s temperature configurations. It has a 3.0 mm (0.12 inches) full scale measuring range. The conical point contacts included with the extensometer are made from tungsten carbide.The Model 4013 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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Static Axial Clip-On Extensionmeters
2630-100 Series
The Instron static axial clip-on extensometer delivers precise strain measurement for static tests by quickly clipping to specimens (metals, plastics, composites) with minimal attachment force. Its rugged cross-brace design resists distortion, includes built-in over-extension protection, and meets ASTM E83 / ISO 9513 standards — making it a reliable, high-accuracy option for general and temperature-controlled testing.
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Axial Extensometers
6 models in this group cover tension, compression and cyclic testing Huge variety of gauge lengths and measuring ranges Cover temperatures from -265 to +200 °C (-450 to +400 °F)
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High Temperature Self-Supporting Furnace Extensometers (1200 C)
Model 3448
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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SSG Series Strain Gauge Extensometers
Shimadzu’s SSG series of strain gauge extensometers are compliant with ISO, JIS, and ASTM tensile test standards, including those for plastics and metallic materials These lightweight, precision extensometers feature a wide elongation measurement range, while retaining the flexibility to measure using small gauge lengths, and support both rod and flat plate shaped specimens. Consisting of an elongation sensor and amplifier, this extensometer is suitable for use with metals and hard plastic materials, and is fastened securely to specimens with screws. Calibration using an extensometer calibrator allows the extensometer to meet JIS and ISO Class 0.5 and ASTM Class C standards for higher accuracy.
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Transverse and Diametral Extensometers
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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Axial Torsional Extensometers
Model 3550
Jinan Testing Equipment IE Corporation
Designed for simultaneously measuring axial and torsional deflections on specimens tested in axial/torsional machines.
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Video Extensometers
AMETEK Sensors, Test & Calibration
The VE1 is a high precision video extensometer that uses a non-contacting optical measurement based on a digital camera and real time image processing to measure the longitudinal and transversal strain during tensile tests.
