NANODISPLACEMENT VISUALIZER: BASIC MODEL (NDV-BASIC)
The NDV-Basic is designed to measure deformations of objects under static loading and to observe slow deformations with an interval between two consecutive exposures of at least 1/15 sec.
Realized methods of measurement with the continuous laser:
- Double Exposure Method – measurement of object’s surface displacement fields under static loadings;
- Multiple-Burn Method (recording of a series of holograms with a frequency of up to 15 Hz) – measurement of displacement fields under quasi-dynamic deformation processes with production of a video;
- Quick Analysis Mode (ESPI)
- Real-Time Observation Mode of the deformation process.
Specification:
Displacement sensitivity: no less than 0.01 µm.
| Registered Scene Size |
Built-in laser (50 mW) |
External laser |
| With retrocoating |
1500*1500 mm |
4000*4000 mm |
| No special coating |
300*300 mm |
1000*1000 mm |
Examples of use:
2. Visualization of the process of thermal deformations of a surface patch of the aero engine blade.
3. Measurement of stress concentration in the crack point in a glass plate under thermal loading.
4. Visualization of the process of crack propagation in the glass sample under thermal loading.
5. Nondestructive testing of the inner geometry of the hollow turbine blade under pressurization.
6. Detection of an internal flaw of the weld in the heat exchanger under pressurization.
7. Visualization of the flow process in the test object under a static bend.
8. Delamination of the multilayered material under thermal loading.
9. Measurement of three projections of the displament vector of a surface under complex static loading.
10. Measurement of fields of the 1st and 2nd derivatives of the displacement function with respect to the coordinate.
