The latest production line of one of China’s largest steel manufacturers is equipped with an innovative optical flatness measurement system, which was developed in Austria. The confirmed comprises a ...

A research team led by Professor WANG Jian, the deputy chief designer of the Wide Field Survey Telescope（WFST）and a faculty member of the State Key Laboratory of Nuclear Detection and Nuclear ...

MÖLLER-WEDEL OPTICAL GmbH has developed a simple-to-use workshop interferometer for testing flat objects. The new Fizeau-type INTERFEROMETER VI direct 50 PUL is able to measure the surface flatness of ...

Space is flat if the three angles of any triangle add up to 180°. For example, Earth’s surface is a positively curved two-dimensional space. When you go from the North Pole to Ecuador to Congo and ...

The measurement methods are outlined in ASTM E 1155 as, “Standard Test Method for Determining Floor Flatness and Levelness”. Two tiers of FF and FL values should be specified: one for the composite ...