Extensometer Product and Material Test Fixtures and Accessories
Last Updated: February 12, 2025
Description
An extensometer is an accessory used to measure strain associated with tensile testing. It is a critical component in the field of material testing, providing precise measurements of deformation in materials under stress. This allows engineers and technical professionals to assess the mechanical properties of materials accurately.
Working Principle
Extensometers work by attaching to a test specimen and measuring the change in length as the specimen is subjected to tensile forces. The device records the amount of strain, which is the deformation per unit length, providing valuable data on the material's behavior under stress. This information is crucial for understanding material properties such as elasticity, yield strength, and ultimate tensile strength. Extensometers are useful because they offer high precision and accuracy in measuring small deformations, which is essential for ensuring the reliability and safety of materials used in engineering applications.
Applications
Extensometers are widely used in various industries for testing materials such as metals, plastics, and composites. For example, they are employed in the automotive industry to test the tensile strength of metal components, ensuring they can withstand the stresses encountered during vehicle operation. In the aerospace sector, extensometers are used to evaluate the mechanical properties of composite materials used in aircraft construction, ensuring they meet stringent safety and performance standards.
Advantages over other Product and Material Test Fixtures and Accessories
One of the primary advantages of extensometers over other testing accessories is their ability to provide highly accurate and precise measurements of strain. This level of precision is essential for applications where even small deformations can significantly impact the performance and safety of a material. Additionally, extensometers can be used in a wide range of testing environments, from laboratory settings to field applications, making them versatile tools for engineers and researchers.
Limitations
Despite their advantages, extensometers have some limitations. They can be sensitive to environmental conditions such as temperature and humidity, which may affect their accuracy. Additionally, extensometers require careful calibration and handling to ensure reliable measurements, which can be time-consuming and require specialized knowledge.
Considerations
When selecting an extensometer, several factors should be considered. Initial costs can vary depending on the type and precision of the device, with high-precision models typically being more expensive. Operating expenses may include calibration and maintenance costs, which are necessary to ensure the device's accuracy over time. Durability is another important consideration, as extensometers must withstand repeated use in various testing conditions. Finally, accuracy is paramount, as the reliability of the data collected directly impacts the conclusions drawn from material testing. Regular replacement and maintenance are essential to maintain the extensometer's performance and extend its lifespan.
from Tinius Olsen, Inc.
The Tinius Olsen model 100R is a high elongation extensometer that is designed to measure the ‘stretch ’ of a wide range of materials including elastomers and non-rigid plastics. The initial measuring length, or gage length, can be changed to suit the specimen size or the test standard... [See More]
- Test Fixture Type: Extensometer
- Test Standard: ASTM; ISO
- Application: Ductility; Physical / Thermal Properties; Tensile
- Capacity: 0.0220
from Tinius Olsen, Inc.
The Tinius Olsen model 100S is designed as a dual purpose extensometer to measure E modulus and offset yield stress (proof stress) on relatively high modulus materials while also providing the ability to measure high elongations up to break. A typical application is the testing of polycarbonate,... [See More]
- Test Fixture Type: Extensometer
- Capacity: 0.0220
- Application: Ductility; Physical / Thermal Properties; Tensile
- Length: 7.87
from Tinius Olsen, Inc.
The Tinius Olsen model 500LC non-contacting extensometer is designed to measure the extension of medium to high elongation materials, typically elastomers. Since there is no contact between the extensometer and the sample, the 500LC is also ideal for measuring the elongation of fragile samples where... [See More]
- Test Fixture Type: Extensometer
- Length: 7.09
- Application: Ductility; Physical / Thermal Properties
- Width / Diameter: 12.6
from Tinius Olsen, Inc.
Tinius Olsen model 600LS non-contacting extensometer is designed to measure the extension of medium to high elongation materials, typically elastomers. Since there is no contact of this extensometer with the sample, the 600LS is ideal for also measuring the elongation of fragile samples where such... [See More]
- Test Fixture Type: Extensometer
- Length: 5.67
- Application: Ductility; Physical / Thermal Properties
- Width / Diameter: 11.42
from Tinius Olsen, Inc.
The extensometer models AE300 and AE500 are suitable for almost all samples with an initial gage length from 10mm. Their low clamping forces combined with high measurement accuracy makes them highly suitable even for small, notch sensitive test samples. The AE series can be connected to partly or... [See More]
- Test Fixture Type: Extensometer
- Application: Compression; Physical / Thermal Properties
from Tinius Olsen, Inc.
Extensometers measure strain – the change in length of a specimen divided by the original length (gage length) of the specimen – by means of knife edges that contact the sample, one of which is fixed in position and the other located on a moveable arm. On these models, the moveable arm... [See More]
- Test Fixture Type: Extensometer
- Application: Physical / Thermal Properties
from Tinius Olsen, Inc.
Extensometers measure strain, the change in length of a specimen divided by the original length (gage length) of the specimen, by means of knife edges that contact the sample. This series of extensometers comprises strain gage devices. The models in this series of extensometer can be used to measure... [See More]
- Test Fixture Type: Extensometer
- Test Standard: ASTM; ISO
- Application: Compression; Physical / Thermal Properties
from Tinius Olsen, Inc.
Multiple variable gauge length measurement. Axial from 7.5-70mm gauge length; Transverse from 6.0-25mm gauge length;. Tinius Olsen introduces Vector a step change in extensometer technology capable of replacing multiple contacting and non-contacting sensors with a single, industry specific... [See More]
- Test Fixture Type: Extensometer
- Test Standard: ASTM; ISO
- Application: Physical / Thermal Properties
from Tinius Olsen, Inc.
Single variable gage length measurement. From 25-180mm gage length, dependent on elongation % within 200mm FOV. Tinius Olsen introduces Vector a step change in extensometer technology capable of replacing multiple contacting and non-contacting sensors with a single, industry specific instrument. [See More]
- Test Fixture Type: Extensometer
- Test Standard: ASTM; ISO
- Application: Ductility; Physical / Thermal Properties
from ZwickRoell LP
The AllroundLine is our customizable and highly versatile testing machine. It is available as a floor-standing testing machine (including models Z100, Z150 and Z250) and as a table-top testing machine (models Z010, Z020, Z030, Z050, Z100, Z150).AllroundLine is suitable for applications in all... [See More]
- Test Fixture Type: Extensometer
- Capacity: 1124 to 56200
- Application: Compression; Flexure or Bending; Tensile
- Operation: Manual
from United Testing Systems, Inc.
Measures from both sides of sample and averages the results. Available in gage lengths of 0.5", 1", 1.4" or 2". Built-in overload protection. Automatic gage length setting. Class B-1 extensometers. High temperature version (up to 350 °F) is also available. [See More]
- Test Fixture Type: Extensometer
- Operation: Electric
- Application: Gaging
from ZwickRoell LP
The clip-on extensometers 5025-1, 8040-1, and 7537-1 are manual clip-on extensometers that can be attached to the specimen quickly and securely with one hand. These lightweight instruments are highly accurate, yet cost efficient solutions for standard tests. [See More]
- Test Fixture Type: Extensometer
- Test Standard: ISO
- Application: Compression; Tensile
- Stroke / Maximum Opening: 1.57
from United Testing Systems, Inc.
Using the principles of laser diffraction, this unique system is designed to accurately measure the cross section of carbon and other opaque fibers and filaments in the diameter range of five to fifty microns. The unit is available in both single and dual array configuration. The single array system... [See More]
- Test Fixture Type: Extensometer
- Operation: Electric
- Application: Gaging; Non-Contact Extension
from ZwickRoell LP
digiClip is available from ZwickRoell in four different versions for extension and/or change-in-width measurement. This digital system delivers uniform accuracy over the entire gauge length. digiClips' compact design is made possible by miniaturizing the digital scale. Furthermore, the lightweight... [See More]
- Test Fixture Type: Extensometer
- Stroke / Maximum Opening: 1.57
- Application: Compression; Tensile; Change in width, Biaxial measurement
- Operation: Manual
from United Testing Systems, Inc.
Each test system is a computer-inclusive unit that is capable of testing up to six samples simultaneously. Data from each sample are recorded in real time by United's data acquisition, reduction and machine control system. The multi-station testing system is recommended for high-volume repetitive... [See More]
- Test Fixture Type: Test Grip / Clamp (optional feature); Extensometer; Pneumatic Gripping Systems, Clamping Extensometry Devices, Strain Gauge Load Cells and Sample Measuring Devices.
- Capacity: 5000
- Application: Tensile
- Operation: Pneumatic
from ZwickRoell LP
The laserXtens 1-15 HP is the specialist for small specimens. It provides highly accurate, non-contact measurements of deformations in a measurement range up to 14 mm from a measurement length of 3 mm, without the need for gauge marks. [See More]
- Test Fixture Type: Extensometer
- Test Standard: ASTM; ISO
- Application: Compression; Tensile
- Stroke / Maximum Opening: 0.1181 to 0.5906
from ZwickRoell LP
The laserXtens 1-32 HP/TZ measures deformations on different materials in various environmental conditions, without making contact. The measuring principle eliminates the need to apply gauge marks. The laserXtens 1-32 HP/TZ is ideal for deformation measurement of small specimens starting at a gauge... [See More]
- Test Fixture Type: Extensometer
- Test Standard: ISO
- Application: Compression; Flexure or Bending; Tensile; Change in width, Strain, Test Re-Run, 2D dot matrix
- Stroke / Maximum Opening: 1.18
from ZwickRoell LP
The laserXtens 2-120 HP/TZ measures deformations on different materials in various environmental conditions, without making contact. The measurement principle eliminates the need to apply gauge marks. The laserXtens 2-120 HP/TZ is ideal for the deformation measurement of specimens with gauge lengths... [See More]
- Test Fixture Type: Extensometer
- Test Standard: ISO
- Application: Compression; Flexure or Bending; Tensile; Change in width, Strain, Test Re-Run, 2D dot matrix
- Stroke / Maximum Opening: 2.36
from ZwickRoell LP
The laserXtens 2-220 HP provides high-accuracy, non-contact measurement without the need for gauge marks for tensile, compression and flexure testing on metals. The system reliably performs closed-loop strain-rate controlled tests to ISO 6892-1 Method A1. The laserXtens is easy to operate and... [See More]
- Test Fixture Type: Extensometer
- Test Standard: ISO
- Application: Compression; Fatigue; Flexure or Bending; Tensile; Change in width
- Stroke / Maximum Opening: 1.97
from ZwickRoell LP
The laserXtens 7-220 HP provides high-accuracy, non-contact measurement without the need for gauge marks for tensile, compression and flexure testing on metals. Due to the patented laserXtens array technology it has a wide measurement range and full view of the entire specimen, which allows for the... [See More]
- Test Fixture Type: Extensometer
- Stroke / Maximum Opening: 8.27
- Application: Compression; Fatigue; Flexure or Bending; Tensile; Change in width, Strain, Test Re-Run, 2D dot matrix
- Operation: Laser
from ZwickRoell LP
The lightXtens extensometer is ideal for safe, reliable, accurate measurements during tensile tests on high-extension, highly elastic and contact-sensitive materials. [See More]
- Test Fixture Type: Extensometer
- Test Standard: ISO
- Application: Compression; Fatigue; Tensile
- Stroke / Maximum Opening: 39.37
from ZwickRoell LP
Measurement of change in width over the entire gauge length according to the recommendation of ISO 10113:2020. [See More]
- Test Fixture Type: Extensometer
- Test Standard: ISO
- Application: Tensile; Hysteresis
- Stroke / Maximum Opening: 39.37
from ZwickRoell LP
makroXtens II is a universal, high resolution extensometer for tensile, compression, flexure and cyclic tests on plastics, composites, hard foam materials and metals that have low to average specimen strain. The makroXtens is a proven extensometer that with various base models and functions, can be... [See More]
- Test Fixture Type: Extensometer
- Test Standard: ASTM; ISO
- Application: Compression; Fatigue; Flexure or Bending; Tensile
- Width / Diameter: 2.36
from ZwickRoell LP
The multiXtens II HP extensometer is a highly versatile extensometer for changing applications with very easy operation and little operator influence. It meets accuracy class 0.5 (ISO 9513) over the entire measurement range up to 700 mm. This allows for measurement of both small and large specimen... [See More]
- Test Fixture Type: Extensometer
- Test Standard: ASTM; ISO
- Application: Compression; Fatigue; Flexure or Bending; Tensile
- Stroke / Maximum Opening: 27.56
from ZwickRoell LP
Strain gauge clip-on extensometers are manual clip-on extensometers, that are clamped to the specimen. With various preset gauge-lengths they are suitable for use on metal and plastic specimens. [See More]
- Test Fixture Type: Extensometer
- Test Standard: ISO
- Application: Compression; Tensile; Strain
- Stroke / Maximum Opening: 0.3937 to 0.9843
from ZwickRoell LP
An extensometer for everything: from determination of the tensile modulus and Poisson's ratio to specimen break, and for testing at ambient temperature as well as in a temperature chamber. The videoXtens biax 2-150 HP is an optical extensometer that was specifically developed for testing of... [See More]
- Test Fixture Type: Extensometer
- Test Standard: ISO
- Application: Compression; Tensile; Strain
- Operation: Optical