ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY / SCIENCE PHOTO LIBRARY ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY / SCIENCE PHOTO LIBRARY
Close-up of the probe head of a coordinate measurement machine measuring the dimensions of a sphere (bottom). Machines like this are capable of accurate 3D measurements of complex, precision-engineered components such as fuel injection nozzles. This machine uses both a touch-sensitive probe and an optical probe, which are both located on a single probe head. Photographed at the National Physical Laboratory, in Teddington, UK.
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