-
product
Custom Extensometers
Jinan Testing Equipment IE Corporation
Special biaxial extensometer for limiting dome height bulge tester for sheet metal formability testing. Simultaneous X and Y strain measurements are taken.
-
product
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.
-
product
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).
-
product
Miniature Transverse (Diametral) Extensometers
Model 3475
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.
-
product
Contacting Extensometers
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.
-
product
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.
-
product
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.
-
product
Deflection Gauge Extensometers
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.
-
product
High Temperature Transverse Extensometers (700 C)
Model 7675
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.
-
product
High Temperature Diametral Extensometers (1000 C)
Model 3580
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.
-
product
High Elongation Extensometers
Model 3800
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.
-
product
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.
-
product
Extensometers for Creep Compliance and Tensile Strength Testing of Asphalt
Model 39
Jinan Testing Equipment IE Corporation
Designed to many of the needs for testing asphalt core samples in 4 and 6 i ch diameters. The unit meets test method requirements for strain measurement developed under the U.S. Federal Highways SHRP program.
-
product
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.
-
product
Sheet Metal r-Value Extensometers
Model 3575AVG
Jinan Testing Equipment IE Corporation
Designed for measuring r-values in sheet metal testing, this extensometer averages the lateral strain at two locations. This model may be used simultaneously with the Model 3542 axial extensometer.
-
product
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.
-
product
High Temperature, Low Strain, Extended Performance Capacitive Extensometers
Model 7650A
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.
-
product
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.
-
product
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.
-
product
Miniature Averaging Axial Extensometers
Model 3442RA1
Jinan Testing Equipment IE Corporation
With gauge lengths of 1 and 2 inches (25 and 50 mm) and measuring ranges of 0.050 and 0.100 inches (1.2 and 2.5 mm), the Model 3442RA1 was designed for applications where tensile or compressive strength tests on small rock, concrete and other small compression samples is desired.
-
product
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.
-
product
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.
-
product
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)
-
product
Bolt Extensometers for Proof Load Testing
Model 3565
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.
-
product
Bi-Axial or Axial Averaging Extensometers
Model 3560
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.
-
product
Diametral Extensometers for Rock and Concrete Testing
Model 3975
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.
-
product
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.
-
product
High Temperature Axial Torsional Extensometers (1200 C or 1600 C)
Model 7650
Jinan Testing Equipment IE Corporation
Model 7650 extensometers are primarily used on round specimens tested in bi-axial test machines capable of simultaneous axial and torsional loading. 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 7650 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 minimize 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.
-
product
Rugged, Long Gauge Length Extensometers
Model 3543
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.
-
product
High Temperature Hot Mountable Furnace Extensometers (1200 Cor 1600 C)
Model 3549
Jinan Testing Equipment IE Corporation
The Model 3549 is a major advancement in the design of externally mounted, furnace extensometers. This new extensometer is designed to meet the stringent requirements of strain controlled testing as prescribed in ISO 6892, while introducing many new innovative features that help improve productivity with static testing applications (tension and compression testing) and long term testing such as low cycle fatigue and creep. The overall design reduces any influence from common lab environment vibrations. This unit also incorporates a new feature that allows the user to precisely set the contact force against the test specimen. This allows for even and repeatable contact force, limiting contact force induced errors. This extensometer mounts on a slide bracket (included) that can attach to the load frame of your test system; optional load frame mounting brackets are available. The gauge length for the 3549 is automatically set prior to mounting on the test specimen, which allows for hot mounting after thermal equilibrium has been reached.
