The redefinition of the SI unit of mass in terms of a fixed value of the Planck constant has
been made possible by the Kibble balance, previously known as the watt balance. Once the …

Compliant mechanisms are state of the art in micropositioning stages due to their many
beneficial features. However, their design usually compromises between motion range …

The Planck constant h is one of the most significant constants in quantum physics. Recently,
the precision measurement of the value of h has been a hot issue due to its important role for …

Flexure hinges with notches are typical elements in high-precision compliant mechanisms
with a wide variety of sizes from macro to micro or nano applications. This paper investigates …

A compliant mechanism gains its mobility fully or partially from the compliance of its
elastically deformable parts rather than from conventional joints. Due to many advantages …

For the realization of high precise motion, often compliant mechanisms are used instead of
rigid-body mechanisms. In these solid-state mechanisms, the flexibility is achieved by …

After several years of development and continuous improvement, the Kibble balance at the
Federal Institute of Metrology (METAS) is now operational. Its stability and reliability allows …

Abstract The “Quantum Electro-Mechanical Metrology Suite”(QEMMS) is being designed
and built at the National Institute of Standards and Technology. It includes a Kibble balance …

Flexure hinge-based compliant mechanisms have many advantages compared to their
counterparts with conventional joints. Hence, they are state of the art in numerous precision …

An automatic alignment technique was developed for the joule balance to reduce the
uncertainty caused by alignment errors. Using the flexures and decoupling structure of the …