ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY / SCIENCE PHOTO LIBRARY ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY / SCIENCE PHOTO LIBRARY
Co-ordinate measuring machine standard. Close-up of a researcher holding an optical dimensional artefact, a standard device used to test and calibrate coordinate measurement machines (CMMs). Such machines are capable of accurate 3D measurements of complex, precision-engineered components. They typically use an optical probe. This optical dimensional standard is being used to test a Hyper Quick Vision (QV) vision co-ordinate measuring machine (VCMM). Photographed in 2014, at the National Physical Laboratory, Teddington, UK.
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