ABSOLUTE MULTILINE TECHNOLOGY continuously monitors the geometry of machines and structures with exceptional accuracy by combining the benefits of an absolute measuring system and an interferometer.
With an accuracy of just 0.5 µm per meter, this technology can precisely measure lengths of up to 30 meters. A single system can utilize 124 measurement channels simultaneously.
Unlike traditional interferometers, this system ensures the highest geometric precision by allowing the measuring beam to be paused at any moment. When measurements resume, it can determine the absolute distance again in just a fraction of a second, without sacrificing accuracy.
These unique characteristics make this technique a benchmark for metrology automation in production.
Investigation and Advancement
The positions of large telescope mirrors and detectors are monitored to reduce setup time and ensure clearer photographs. Similarly, component placement and measurements are conducted in a vacuum at particle accelerators like CERN.
This includes analyzing minute machine and structural deformations, such as those caused by temperature fluctuations and load testing. Deformations and deviations from nominal geometries are measured optically on the surfaces.
Features and Benefits
The measurement capabilities range from just a few millimeters (near range setup) to 30 meters (standard configuration) and even beyond that.
For distances ranging from 0.02 meters to 30 meters, the measurement uncertainty at a 95% confidence level is 0.5 μm/m.
Complex metrological networks can be set up using up to 124 synchronous channels.
Durable measurement sensors ensure reliable performance even in the most challenging conditions.
Fibers measuring up to 7 kilometers in length can be utilized.
Additional channels can be incorporated through fiber switches with sequential multiplexing.
There is a server interface for third-party software and comprehensive software for 1D geometric monitoring.
Technical Data
| Technical data | |
| Measurement uncertainty | U(95%) = 0.5 ppm |
| Measurement range | Up to 30 m |
| Number of channels | 4 – 124 |
| Laser class | II m, eye save |
| Traceability | Calibrated gas spectrum |
| Compensation | Temperature, pressure, humidity |