Extensometer

Extensometers are devices used in physical properties testing and inspection to measure the deformation or strain of a material under mechanical stress. They are commonly used in materials testing laboratories, research facilities, and manufacturing industries.

Extensometers are typically attached to a specimen or sample and measure the change in length or displacement as the material is subjected to a tensile or compressive force. This allows for the determination of important mechanical properties such as elastic modulus, yield strength, and ultimate tensile strength.

These devices are designed to provide accurate and precise measurements of strain, allowing for the characterization and evaluation of material behavior under different loading conditions. They are often used in conjunction with universal testing machines or other mechanical testing equipment.

Extensometers can be classified into different types based on their design and application. Some common types include clip-on extensometers, contact extensometers, and non-contact extensometers. Each type has its own advantages and limitations, depending on the specific testing requirements and material properties.

In summary, extensometers are essential instruments in physical properties testing and inspection. They play a crucial role in understanding the mechanical behavior of materials and ensuring the quality and performance of various products in industries such as automotive, aerospace, construction, and manufacturing.