Excellent measurement conditions below ground
Coordinate measuring machines (tactile and optical) are placed in a large measuring room (270 m3) having stable temperature (+20 °C ± 0.2 °C). The laboratory is 10 m below ground level and built with room-in-room principle. The most heat sources have been eliminated by exhaust air pipes. This allows the room's large volume to remain stable even when measuring large objects. In addition, the room is equipped with a 1000-kg crane running on rails and a load lift with capacity of 4000 kg can be used to haul cargo into the room. The tactile coordinate measuring machine is founded through a walking floor with a steel structure to a massive concrete block, which is supported by a 50 mm thick vibration isolation layer on top of a two-metre thick layer of gravel. More information on the laboratory room can be found in Ref. 1.
- A. Lassila, M. Kari, H. Koivula, U. Koivula, J. Kortström, E. Leinonen, J. Manninen, J. Manssila, T. Mansten, T. Meriläinen, J. Muttilainen, J. Nissilä, R. Nyblom, K. Riski, J. Sarilo and H. Isotalo, Design and performance of an advanced metrology building for MIKES,
- Veli-Pekka Esala, Senior Research Scientist, tel. 040 866 7636, email Veli-Pekka.Esala(at)vtt.fi
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