(Etalon: Braunschweig, Germany) -- Absolute Multiline Technology is a worldwide unique measurement system for monitoring the geometric accuracy of machine tools by means of high-precision length measurements: An absolute distance interferometer measuring with submicrometer resolution serves as the metrological centerpiece of a factory. It connects with any number of machines via fiber-optic network that may comprise more than 100 measurement channels. These channels, equipped with miniature optical elements, are oriented along the machines’ axes, space diagonals, and face diagonals of the machine working volume.

Absolute Multiline Technology’s metrological network is ready to cover any machine location and size; it has already been set up in factories supplying multiple machine tools with up to 12 m (39 ft) in axis length. The maximum range of measurement is 40 m (131 ft), while the optical fibers may travel several kilometers. Due to the large distances possible between the robust measurement sensors and the system electronics, measurements can be conducted under extremely rough environmental conditions.

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