LBT Box 2DS Video Extensometer

Product Introduction:

The video extensometer is a two-dimensional, non-contact extensometer based on DIC technology. Its measurement head captures images during the specimen loading process, while the extensometer software processes these images and outputs real-time deformation measurements. With the optional full-field measurement module, it can also perform full-field displacement and strain measurements.

Product Advantages:

• Non-contact measurement
• Two-dimensional measurement
• Unrestricted by specimen shape: plate‑shaped, rod‑shaped, sheet‑shaped, wire‑shaped, and thin‑film.
• Unlimited by strain range, capable of measuring strains from 0% to 1000%.
• Unrestricted by strain direction: capable of simultaneously measuring both axial and transverse strain.
• Embedded software, easy to operate
• Meets the accuracy requirements of the current JJG 762-2007, Class 0.5;
• Test scenario

Technical Specifications:

Detailed configuration:

1. Host section
2. 1 LBT Box Video Extensometer
3. 1.1 Video extensometer camera, 1 unit

• CMOS image sensor, monochrome
• Maximum resolution: 4024*3036 pixels
• Full‑frame sampling frequency: 32 Hz

1. 1.2 One industrial lens

• Matching measurement range: MV 500 mm

1. 1.3 One light source

• Integrated blue-light source for monocular 2D testing

1.  
2. 1.4 Mobile Bracket

• Product structure: Made of aluminum alloy, it can be repositioned using floor-mounted casters.
• The height and fore-aft position can be adjusted via the handwheel.
• Pole height: 1200 mm
• Bracket load capacity: ≤20 kg
• Ground clearance adjustment range: 450 mm–1450 mm / 850 mm–1850 mm
• Front-to-back adjustment range: 0–450 mm

1.5 One set of measurement and analysis software

• It enables monocular two-dimensional deformation and strain measurement and analysis.
• It supports the import of monocular 2D images.
• Deformation and strain measurements can be performed within the measurement range.
• It enables deformation and strain measurements in any direction.
• It enables deformation and strain measurements at multiple gauge lengths.
• Embedded communication software supporting C++, C#, and VB.
• Supports the UDP communication protocol.
• Supports analog signal communication.
• It can display measurement results in graphical form.
• Measurement data can be exported as an Excel file.
• It enables magnification, reduction, and panning of the measurement area.
• Manually save calculation data
• Automatically save calculation data
• Customize the save location for selected data
• Computations for calibrating different calibration‑plate dot patterns.
• Real-time frame rate can be set.
• Configurable number of frames per stage
• Threaded steel material can be measured without feature points.
• Width measurement of sheet material is possible.
• Width measurement of bar stock is possible.
• Real-time: The testing machine can be connected to acquire stress–strain data in real time.
• Import: Stress–strain data can be generated by importing force‑displacement data.
• The center marker point can be automatically recognized.
• Automatically recognize horizontal and vertical reference points.
• QR code fiducial markers can be automatically detected.
• Automatic recognition of cross‑marking points is possible.
• It can simultaneously measure with up to six extensometer devices.
• Supports real-time switching of camera feeds.
• View computing data from multiple devices in real time.
• The object distance between the device and the measured object can be determined using the device’s internal laser sensor.
• Supports extensometer mark-point measurement mode
• Supports single-point measurement mode
• Supports line measurement mode
• Perform average data processing on multiple sets of landmark points.
• The chart shows the average value curve.
• You can set the distance between marking points by manually entering the gauge length.
• The software can be upgraded to extend its monocular 3D DIC analysis capabilities.

1. 1.6 One calibration board

• Matching measurement range

1. Optional item

2 Multi-function Controller

• Software-based analog signal communication module
• Analog Signal Controller

1. 3 Full-Field Measurement Module
2.  

• It allows direct single-camera 2D calibration, measurement, and computational analysis via a graphical user interface.
• Equipped with a high-speed camera and control software, it enables image acquisition and adjustment of the camera’s trigger mode.
• Supports importing monocular 2D images for monocular 2D calibration, measurement, and computational analysis.
• Full-field two-dimensional displacement and strain can be computed from monocular 2D images.
• It is possible to generate a full-field strain distribution map of the specimen surface based on two-dimensional displacement and strain fields, and display it as a color contour plot.
• Measurement and analysis at arbitrary points and along sectional lines can be performed based on full-field displacement and strain distribution maps.
• It is possible to obtain the time-history curves of strain at any local location as a function of loading, and to export the results to an Excel file.
• Supports exporting point cloud data for the entire scene.
• It can process the entire point cloud dataset, calculating and displaying the number of measurement points, maximum value, minimum value, mean, and variance.
• It features a strain gauge creation function, allowing you to customize the strain gauge size.
• It features a one-click strain gauge mode, enabling the entire field to be divided into strain gauges with a single click.
• It enables magnification, reduction, and panning of the measurement area.
• It enables rectangular and polygonal selection of the analysis area.
• Supports automatic movement of seed points.
• It enables the measurement of deformation between any two points.
• It enables the evaluation of speckle quality and the setting of the average gray‑level gradient.
• It enables dynamic adjustment of the measured image within the chart.
• PDF report with exportable strain fields and charts
• Exportable video report of strain fields and charts
• The software can be upgraded to extend its monocular 3D DIC analysis capabilities.

1. 4 Data Processor

• CPU: Intel Core 13th Gen i7-13700KF
• Memory: 32 GB
• Graphics Card: RTX 4060 Ti 8GB discrete GPU with ARGB lighting
• Hard drive: 1TB SSD
• Monitor: 23.8 inches
• Operating System: WINDOWS 10

5 Fatigue Module

• Simulated Signal Communication Module for Fatigue Testing Machine
• Signal Acquisition, Amplification, and Fitting Software

6 Boundary Measurement Module

1. 6.1 Backlit LED Panel
2. 6.2 Width Boundary Recognition Software Module

• It can automatically detect boundaries and divide the image into 32 width-direction landmarks.
• It can calculate the deformation of 32 gauge lengths and output the average value.
• It can calculate the deformation of 32 gauge lengths and output the minimum value.
• Switchable output of the average and minimum values of deformation over 32 gauge lengths.
• The longitudinal and transverse deformation results can be displayed simultaneously in the measurement chart.

7 Real-time Strain Gauge Measurement Module

• It can automatically identify virtual strain gauges on the specimen surface.
• It can measure the strain of a virtual strain gauge on the specimen surface in real time.
• It can display real-time strain values as a color contour map based on strain gauge readings.
• It can process the entire point cloud dataset, calculating and displaying the number of measurement points, maximum value, minimum value, mean, and variance.
• Chart report with exportable strain gauge data
• Exportable strain gauge data video report