Mass determination with the magnetic levitation method

The project for the realisation of the kilogram using the ldquosuperconducting magnetic levitation methodrdquo has been continued at MIKES. From the results of the subproject, calorimetric measurements, we have come to the conclusion that the realisation of the kilogram based on the levitation method is difficult with the present knowledge of energy losses in superconductors due to incomplete Meissner effect. New materials or measurement methods has to be found. A new improved test system under the consideration will be presented.