A system to measure 3-directional relative displacements for a biomedical application
نویسندگان
چکیده
A 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 _+ 5o0 [am for lateral directions and _+ 5o [am in axial direction.
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