Abstract

Abstract This paper looks at a methodology of precision measurement of angular micro-motion in a hip prosthesis. This research involved investigating various types of angular sensing devises such as potentiometric sensors, capacitive sensors, inductance transducers, variable reluctance transducers, optical encoders and hall effect sensors. After considering their feasibility, a hall effect sensor was designed for a model of an implant and a femur. A brief description of the design procedure is given. The results of the experiment show that the usage of hall sensors for micro-motion measurement are promising.

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