A German research institute active in metrology has developed a measurement system for the determination of very small flow rates for the calibration of gas flow meters. For the calibration of smallest flow rates (<0.1 ml/min), a piston system for volumetric flow determination is set up, where a liquid with low vapor pressure can be introduced above the seal of the vertically moving piston. The uncertainties usually arising from thermal input during this measuring process are minimized.

A German national research institute active in metrology has developed a measurement process, which enables the efficient measurements of strong curved spherical segments which are often used in optical measurement equipment. Measurement uncertainties due to thermal expansion of the measurement equipment are reduces by at least factor 2. The method uses an interferometer signal coming from the front onto the spherical surface to be measured. In the center (on the optical axis) a phase value is determined, which is determined down to half a wavelength (typically the wavelength is 632 nm).

The extrusion forming process enables high degrees of forming to be achieved in just a single process step as well as the production of almost unlimited varieties of possible profile cross-sections. Extrusion is an essential manufacturing process, especially for the lightweight material aluminum. In conventional extrusion processes, however, only rigid forming tools are used that can only form constant profile cross-sections along the length of a profile.

A German family-owned SME is specialised in filter manufacturing. They deliver liquid filter elements to various sectors. Liquid filters are often installed as full flow filters or partial flow filters in suction lines and pressure lines in order to protect the following plant components. The filter elements concepts are in many cases individually tailored to specific applications with the objective to achieve the optimum operating life for the plants and equipment.