Description
PW-US72SP High Precision Non-contact Video Extensometer / Video Extension Rate Tester
Introduction to the Extensometer:
The large deformation video extensometer is a non-contact, high-precision real-time measurement system for significant deformations. It utilizes a standalone digital camera and real-time image processing algorithms to capture images of the specimen during the testing process. By analyzing changes in image features, it can dynamically and in real-time measure data such as strain and displacement, accommodating tests with deformations of 1000% or more. It is particularly suitable for testing materials like rubber and films and supports signal communication with the testing machine to measure various mechanical performance parameters, including stress-strain curves, and can be used for a variety of large deformation mechanical tests.
Technical Parameters:
| Capacity | 50N; (other capacities available upon selection) |
| Display | Computer display method |
| Force resolution | 1/1,000,000 |
| Force accuracy | 0.03% |
| Accuracy class | 0.5 |
| Stroke resolution | 1/1,000,000 |
| Control method | Fully computer-operated |
| Test speed | 0.01～500mm/min, computer settable, with quick adjustment buttons for fixture up and down |
| Force unit conversion | kgf, N, Ibf, g, ton, Mpa |
| Shutdown modes | Overload shutdown, emergency stop button, automatic shutdown upon specimen failure, automatic shutdown with upper and lower limit settings, automatic reset function |
| Machine dimensions | Approximately 150×230×300cm (W×D×H) |
| Machine power | Servo motor driven, synchronized pulley and precision ball screw transmission |
| Total power | Approximately 400W |
| Machine weight | Approximately 100kg |
| Power supply | 220V 50/60HZ |
| Standard configuration | One set of tensile grips, one video extensometer, software, computer cable |
| Optional purchase | Personal computer |
Features:
- Non-contact measurement: Avoids additional influences on measurement from contact methods such as strain gauges and clip-on extensometers.
- Full process tracking: No need to stop the machine during the entire process; the testing machine will not be damaged even if the specimen breaks, allowing for full process tracking.
- Diverse scenarios: In addition to general scenarios, it can also adapt to special experiments such as large deformations, small deformations, and high/low temperatures.
- Broad material adaptability: There are virtually no restrictions on materials; it can be used for testing specimens of different sizes and materials.
- Sub-pixel measurement accuracy: Based on image processing correlation methods, the calculation accuracy reaches the sub-pixel level.
- Large strain range: The measurable strain range is from 0.002% to over 1000%, far exceeding traditional methods.
- Customizable gauge length: The gauge length can be customized, with any setting within hundreds of millimeters.
- Easy marking: No need to paste marks; marks can be made quickly and simply, ensuring that marks do not fall off during large deformations.
- Multi-directional simultaneous measurement: Can calculate longitudinal and transverse strains simultaneously.
- Multi-point pair measurement: Can measure strain at multiple points, suitable for multi-specimen testing and multi-stage testing.
Application:
Widely used in industries such as rubber, plastic, polymer materials, adhesives, and adhesive tapes, it is suitable for testing the tensile strength, extension rate, elastic modulus, compressive strength, and compressive rate of materials under different conditions such as room temperature, low temperature, and high temperature. It can be conveniently switched for use at room temperature, offering convenience and versatility with multiple functions in one machine.
Video Extensometer Photo:
Software Interface:
