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Figure: Schematic diagram of system measurement principle and scattered image tracking process
System composition: It consists of a system measurement head (1 industrial camera, lens, LED light source with adjustable direction handle), camera synchronous control trigger control box, system calibration board, system movable support frame, dynamic acquisition and analysis software, load and pressure control communication interface, and computer system (user - matched), etc.
Measurement objects: Different focal length lenses can be equipped according to the size of the actual measurement object to obtain measurement results of various scales. It is suitable for testing from micro - size specimens to large deformation tests of rubber and other materials.
Measurement environment: Testing from low temperature to high temperature and even extreme ultra - high temperature environments; from low - cycle fatigue experiments to high - frequency experiments.
Applicable materials: From conventional metal materials to composite materials, rubber, concrete, plastic films, biological bones, muscle tissue and other unconventional materials.
Advanced system technology: Digital image correlation two - dimensional and three - dimensional deformation measurement system; with independent intellectual property core algorithms, technical indicators have reached the advanced foreign level.
Wide application range of the system: It can be used in scientific research and engineering measurement in multiple disciplines such as machinery, materials, mechanics, architecture, and civil engineering. It is suitable for most materials and can obtain the coordinate, displacement, and strain data of the measured object in real time.
Flexible system configuration: Supports multiple camera interfaces such as millions to tens of millions of pixels, low - speed to high - speed, and the system software control module supports online synchronous acquisition.
Real - time measurement: It can perform strain calculation and result display in real time instead of post - processing.
Strong system compatibility: It is compatible with single - camera two - dimensional measurement and multi - camera three - dimensional measurement at the same time.
Powerful auxiliary functions: It has the function of measuring the dynamic deformation of circular marks and the trajectory and attitude of rigid body movement.
Rich expansion interfaces: It has a universal testing machine interface, which can collect force and displacement signals of the testing machine in real time; it has various impact testing machine interfaces, which can measure the FLC curve of materials; it has a desktop microscope interface, which can realize three - dimensional full - field deformation and strain detection of objects as small as a few millimeters or even smaller; it supports synchronous measurement of multiple camera groups, which can measure the deformation and strain of multiple regions at the same time; the system has multiple A/D inputs, multiple D/A outputs, multiple switch input and output channels, and can be flexibly expanded.
Stable product performance: Verified by dozens of users at home and abroad, with stable performance, including many domestic military users (China Aircraft Strength Research Institute, Composite Material 43 Research Institute, etc.) and domestic universities (East China University of Science and Technology, Harbin Institute of Technology, Nanjing University of Aeronautics and Astronautics, etc.).
Technical support: Independent research and development, flexible customized development; a powerful top - notch R & D technical team provides you with comprehensive solutions and technical guidance, and is always a solid technical backing for your scientific research and development.
Non - contact optical measurement: One - key measurement without interruption, and the measurement device will not be damaged even if the specimen breaks.
High precision: Based on image correlation technology, sub - pixel matching, the precision can reach sub - pixel level.
Simultaneous measurement of multiple points: Axial and transverse strains are measured simultaneously, and even more point pairs.
Custom gauge length: Fixed, custom multiple gauge lengths for convenient setting.
Real - time calculation: Real - time calculation rate exceeding 100 frames; up to 1000 frames.
Multiple calibrations: Correction of the entire field distortion of the measurement field of view, and simultaneous application of the scale for more accuracy.
Multiple measurement values: Displacement, strain, Poisson's ratio, elastic modulus, etc.
Multiple connection interfaces: ADDA, serial port, support the joint measurement of multi - brand testing machines and temperature units.
Multiple scenarios: Large deformation, micro - deformation, normal temperature, high and low temperature, etc.
Multiple materials: Multiple sizes and specifications.
Secondary calculation: Save test data, and re - calculate by modifying the gauge length conveniently.
Full - field strain: DIC full - field strain.
3D extensometer (optional): Supports 3D extensometer (dual camera), improving measurement accuracy when there is non - negligible out - of - plane displacement.
Main Functions of Video Extensometer
Supports real - time calculation and measurement of displacement and strain.
Supports calculation and measurement of elastic modulus and Poisson's ratio.
Supports real - time drawing and display of multiple curves.
Supports simultaneous measurement of longitudinal and transverse strains.
Supports sample auxiliary alignment function.
Supports automatic scale correction.
Supports fixed, custom and free gauge length setting.
Supports real - time image saving and secondary calculation functions.
Supports data export and report functions.
Supports analog quantity/digital quantity input and output.
Supports ADDA and COM joint mechanical testing machine functions.
Supports temperature unit start - stop and data acquisition.
Supports DIC full - field strain measurement.
Matching mechanical testing machines and temperature units can realize various conventional and high - low temperature measurements such as tension, compression, and bending.
Strain accuracy: 0.002%
Strain range: 0.002% - 2000%
Measurement resolution: ± 1μm/± 0.5μm
Measurement field of view: 100mm/50mm
Gauge length range: 10 - 100mm/5 - 50mm
Data acquisition rate: 0 - 100Hz (the rate can be increased to 500 by reducing the resolution)
Accuracy meets ISO9513 standard 0.5 level, ASTM E83 standard B - 2 level
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Tel: 18014878671 (Same as WeChat)
Web: www.gogoyq.com
E-mail: wjw@gogoyq.com
Address: No. 308, Baichuanghui, Binhe Road, Suzhou, China
