Video extensometers for non contact strain measurement
M Series
The M-Series video extensometer demonstrate state-of-the-art Digital Image Correlation (DIC) technology to provide accurate strain measurements via a high-resolution optical sensor, by simply framing the specimen while performing the test. It is suitable for a variety of materials, including those on which a traditional extensometer cannot be placed: FRP, FRCM, CRM, FRC, geotextiles, geogrids, fabrics, etc.
Possible measurements:
- Elongation
- Tilt
- Torsion
- Detection of transverse edges
- Crack length
- Fragmentation surface
- Real-time strain distribution
For more information click here
TECHNICAL FEATURES
| Model | M5 | M9 |
| Type of sensor | CMOS | |
| Resolution | 5 Mpixels | 9 Mpixels |
| Pixel dimension | 0.00345 mm. | |
| Frame rate at maximum resolution | 75 Hz | 32 Hz |
| Digital interface | USB 3.0 | |
| Operative distance with 16 mm. lens | Class 0.5: 213 mm. Class 1: 335 mm. Class 2: 693 mm. |
Class 0.5: 233 mm. Class 1: 494 mm. Class 2: 1017 mm. |
MAIN REFERENCE STANDARDS
| ASTM A615 | Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement |
| ASTM A370 | Standard Test Methods and Definitions for Mechanical Testing of Steel Product |
| ASTM E4 | Standard Practices for Force Verification of Testing Machines |
| ASTM E8 | Standard Methods for Tension Testing of Metallic Materials |
| ASTM E9 | Standard Methods of Compression Testing of Metallic Materials at Room Temperature |
| ASTM E2658 | Standard Practices for Verification of Speed for Material Testing Machines |
| UNI EN ISO 6892 | Test method for tensile test at room temperature |
| UNI EN ISO 7500-1 | Calibration and verification of uniaxial static test machines |
| UNI EN 15630 | Steel for reinforced concrete and prestressed concrete |
| UNI EN 10080 | Concrete reinforcing steel Weldable reinforcing steel |