Patent granted for Torque Standard Machine

Patent document for "floating lever bearing"

1.1 MN·m Torque Standard Machine of the PTB, Braunschweig

To prevent primary interferences, Torque Standard Machines must generate the torque vector without transverse forces and bending moments.

In case of low torques the use of couplings with low bending strength but high torsional stiffness is preferred. This makes it possible to reduce transverse forces and bending moments to a negligible magnitude. In the case of higher rated torques above several hundred kN·m, such design solutions are becoming increasingly more expensive and uneconomical.

This is why GTM developed the "floating lever bearing", which uses an active control circuit to detect and eliminate the occurrence of interference factors. Torque Standard Machines in the MN·m range can be manufactured relatively inexpensively, with unprecedented precision. The Torque Standard Machine of the German metrology institute Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig is the first Torque Standard Machine based on this GTM invention.

The German Patent Office has now granted GTM a patent for this innovative invention.