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Extensometers
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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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Axial Extensometers
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6 models in this group cover tension, compression and cyclic testingHuge variety of gauge lengths and measuring rangesCover temperatures from -265 to +200 °C (-450 to +400 °F)
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Non-Contact Extensometers
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An instrument that measures material deformation and strain without physically touching the test specimen.
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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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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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High-Temperature Extensometers < 1000°C Capacitive
2632 Series
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Is typically used in hot tensile applications with tube type furnaces and consist of a separate measuring unit and suspension arm assembly. The measuring unit uses an LVDT with a fixed travel that remains outside of the furnace, the arms are located mostly inside of the heating system and attach the specimen to the measuring unit.
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High Temperature Axial Extensometers
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4 models cover a variety of applications for high temperature testing1 un-cooled model for use inside chambers up to 600 °C (1000 °F)Other models for use with split furnaces and induction heating, up to 1600 °C (2900 °F)
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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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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
Video Extensometers
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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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SSG Series Strain Gauge Extensometers
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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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Product
Universal Testing Machine:UTM Micro
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Until now, testing of very delicate and small mechanical parts such as bearings, springs, microwires, organic fibers, and micro-electro-mechanical devices was not possible with conventional universal testing machines. But Anton Paar’s universal testing machine, UTM Micro, based on the renowned Anton Paar MCR rheometer, opens up a new world of material testing. The versatile UTM machine’s sensitive MCR technology, combined with its proven modularity, and an integrated extensometer and load cell, allows you to go beyond just tensile testing. You’ll now be able to rise to all kinds of challenges, even in the fields of DMA and optical methods.
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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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Differential Transformer Type Extensometers
DT Series
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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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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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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
Extensometers
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Extension measurement is one of the areas that complements our range of UTM program. The result is a comprehensive range of high class variations. The product selection is arranged as follows:*Non-contact extensometers with and without measurement marks.*Contact extensometers: Sensor arm extensometers, incremental and analogue clip-on extensometers as well as extensometers for compression and flexure tests.
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Automatic Extensometer
SIE-560A/560SA
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To determine the suitability of a material for an application where it is under load, measuring its elongation is important. Measuring elongation enables determination of the elastic modulus (reversible elongation in the elastic region) by measuring the small initial elongation range, and determination of elongation at specimen failure, by measuring larger irreversible elongation in the plastic region. Shimadzu’s SIE-560A series automatic extensometers accomplish both of these measurements with high accuracy, and provide automated functions that increase testing efficiency and test reproducibility. Ideal for testing a wide variety of materials, including metallic materials, plastics, and composites, the SIE-560A series complies with ISO 527, JIS K 7161, and ASTM D638 standards for plastics tensile testing. In addition, the SIE-560A series supports strain-rate controlled metallic material tensile testing measurements specified in ISO 6892, JIS Z 2241, and ASTM E4
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Product
Static Axial Clip-On Extensionmeters
2630-100 Series
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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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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
One-Touch, Strain Gauge Extensometers
SSG-H Series
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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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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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AMETEK Sensors, Test & Calibration
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
Universal Testing Systems
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Instron universal testing systems are versatile, high-accuracy platforms (available in electromechanical and hydraulic variants) designed to perform a wide range of static mechanical tests, such as tension, compression, bend, peel, shear, puncture, and more, on virtually any material. They support force capacities from fractions of a newton up to thousands of kilonewtons, with precision load measurement, high data acquisition rates, and compatibility with thousands of accessories, including a wide range of extensometers, grips, fixturing, and automation solutions to meet demanding quality and throughput standards.
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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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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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Long-Travel Extensometer For Soft Materials
DSES-1000
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A Long-Travel Extensometer That Is Now Easier to Use and Even More Precise The DSES-1000 is a long-travel contact-type extensometer able to measure displacement up to the breakpoint in tensile tests of rubber and other soft materials. The upper and lower arms are clamped to respective gauge positions using a simple single operation, with each arm tracking sample elongation independently.
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Product
Video Extensometers
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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.
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Product
Averaging, Bi-Axial And Axial/Torsional Extensometers
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Measures strain simultaneously on opposite sides of a test specimen and electronically or mechanically averages the outputs into a single reading.
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Product
Software
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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.
