LIMcrack | crack length & crack growthRealTime-measurement at fatigue testing
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Contact less and camera based |
| LIMcrack is a camera-based system for the real-time measurement of the crack length at fatigue testing according to ISO 27727. The system does not require a specimen marking and measures fully automatically the crack length. The measured values are transferred directly to the controller of the testing machine and the crack growth and crack growth rate is recorded over the time. |
| The system was developped for testing according to ISO 27727 (Rubber, vulcanized - Measurement of fatigue crack growth) tests. But it can also be used flexibly for other tasks. The measurement of the crack length is done with subpixel accuracy. The crack propagation can be visualized due to the optional image recording. |
Technical Specifications:
| Camera resolution |
12 MPixel |
| Crack length accuracy |
<10µm |
| Measurement rate |
up to 20Hz |
| Interface to test machine | digital |
Features:
| Integrated camera control |
for settings of exposure time, area of interest, etc. |
| Measured value display |
of the crack data |
| Image acquisition |
for the later visualization and analysis |
| Trigger | of the measurement/image acquisition to the maximal load at cyclic the fatigue testing |
| Temperatur chamber | with a window allows also the measurement at variable temperatures. |
