LVE Video Extensometer

Overview

The LVE Video Extensometer is a high-precision, real-time non-contact measurement system. Utilizing digital cameras and image processing algorithms, it captures and analyzes changes in specimen characteristics during loading, enabling real-time displacement and strain measurements. It offers high accuracy, a wide measurement range, and intuitive, visually comprehensible results.

Applications

Primarily used for tensile, compression, bending, creep, and fatigue performance testing:

Strain (elongation) measurement

Elastic modulus measurement

Tensile/compressive strength measurement

Poisson's ratio measurement

Full-field strain/gauge length measurement

Fatigue testing

Technical Advantages

Compared to traditional extensometers, the LVE Video Extensometer features:

Non-contact measurement with no impact on material properties.

Applicable to almost all materials, from specimens to components and entire structures.

Measurement range from microns to meters.

Strain range from 0.002% to over 1000%.

Sub-pixel measurement accuracy, up to 0.01 pixels.

The measurement process is simple and efficient, providing real-time results:

Gauge length customization, freely set within hundreds of millimeters.

Full-process tracking, no need to stop testing; specimens breaking does not damage the measuring device.

Comprehensive result outputs, including displacement, strain, color maps, and curves.

Compatible with extreme environments, including high temperature, high pressure, radiation, and vibration.

Portable testing equipment with traceable measurement processes.

Application Scenarios

Equipped with a high-precision data acquisition controller, the LVE Video Extensometer supports communication with various testing machines. It is widely used for studying the mechanical properties and behavior of materials and components, especially in scenarios where traditional extensometers are limited, such as unconventional materials and extreme environments.

Standard material mechanical property testing

Large deformation tensile tests for rubber and similar materials

Flexible material testing (e.g., films)

Tensile testing of rebar

Tensile testing of steel ropes/strands

Tensile strain measurement of fine metal wires

Concrete compression testing

In-situ tensile testing of small-sized specimens

Microscopic scale strain analysis

High/low-temperature performance testing

Cyclic fatigue testing

Tensile test

Fatigue test

Compression test

Bending test

Application Cases

Fracture elongation of steel strands

Biaxial mechanical properties of small specimens

Mechanical properties of silicone gel

Fatigue strain of rubber materials

Mechanical properties of new high-strength materials

2000°C high-temperature tensile testing