Industrial metrology (metrology) encompasses methods and measurement procedures for determining geometric and physical quantities such as length, angle, temperature or pressure and their uncertainties and, where applicable, interdependencies. Since the sought-after quantity is sometimes not directly measurable, direct and indirect determination methods are used in industrial metrology.
In addition to the acquisition of measurement data, proper evaluation and analysis forms one of the key competencies of the Laboratory for Industrial Metrology. Especially for special applications, individually tailored evaluation strategies are designed, and solution algorithms are developed and implemented.
The evaluation processes of many applications require statistical and analytical methods to assess the quality of the derived quantities and parameters. Besides the classical equilibrium calculation, recursive estimation methods and the Kalman filter are among the tools used for parameter estimation. Of course, measurement uncertainties are determined and considered following the Guide to the Expression of Uncertainty in Measurement (GUM). In addition, instead of classical variance propagation, numerical methods such as unscented transformation, bootstrapping, or Monte Carlo simulation are used to determine representative measurement uncertainties.
For individual use cases and special tasks, the Laboratory for Industrial Metrology develops problem-specific software solutions.
The strengths of the Laboratory for Industrial Metrology begin where very high accuracy requirements are placed on the measurement process and conventional methods fail. The entire measurement process is individually adapted to the general conditions of the measurement location and the measurement object in order to reliably derive resilient results. The laboratory meets the various challenges with modern technical equipment and software.
The laboratory is equipped with the latest total stations from Leica Geosystems, e.g. the TS60 and the MS50, for point and non-contact surface recording of objects. In addition, the Lasertracker AT401 (Leica) and Omnitrac 2 (API) are optionally used wherever classic measurement and recording methods fail due to accuracy requirements. In contrast to transportable laser trackers, the main applications of mobile absolute trackers are in large volume metrology with measurement volumes of 2-500 m and accuracy requirements of up to 20 μm. For the acquisition of environmental parameters, particularly in meteorology, the laboratory uses multi-sensor systems to fully exploit the potential of the Lasertracker measurement system. For photogrammetric precision measurement of objects, the DPA Industrial measurement system from Aicon (Hexagon) is available, which achieves point-based accuracies of 10 μm in the small-scale measurement volume.
Transfer Centre for Applied Geodesy in the Steinbeis Network