The kilogram prototype with laser markings
International efforts have been ongoing for years to redefine the unit of measure for a kilogram and find a constant gauge. At the National Metrology Institute of Germany (Physikalisch-Technischen Bundesanstalt (PTB))
a solution was sought in natural constants - in atoms in a pure crystal structure. Pure silicon is key to the definition of a new, constant kilogram.
To align the spheres for the numerous measurements, markings are necessary that inflict the least damage possible.
In its search for a suitable method the PTB in Braunschweig found what it was looking for at Micreon.
To align the spheres for the numerous measurements, markings are necessary that inflict the least damage possible.
In its search for a suitable method the PTB in Braunschweig found what it was looking for at Micreon.