Spiering, V. L.Gass, V.Jeanneret, S.de Rooij, N. F.Widmer, K. H.Zurfluh, B.Morscher, E.2009-05-122009-05-122009-05-12199510.1007/BF01624469https://infoscience.epfl.ch/handle/20.500.14299/39872A micro system for measuring the relative displacements between a bone and an implant in a prosthetic hip of a human being has been realized. Novel are the small dimensions of the system combined with the possibility to measure relative displacements in three directions. The system consists of a microsensor body, a mechanical transducer element made by precision mechanics, electronics, and the final package. The realization and test results of a prototype system are presented. Typical ranges for these prototypes are ±500 μm for lateral directions and ±50 μm in axial direction. © 1995 Springer-Verlag.text::journal::journal article::research article