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Calibration of linear displacement sensors for micromotion studies

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2 Author(s)
DiSilvestro, M. ; Johnson & Johnson Co., Warsaw, IN, USA ; Dietz, T.

This paper describes a calibration method for linear displacement sensors that includes quantifiable errors on the order of 1 μm, and that has been adopted in an effort to ensure accurate measurements of micromotion within orthopaedic implants during simulated use. This method results in a calibrated linear displacement sensor system with known quantifiable error. For the components used in this study, this error is on the order of 1 μm. It is suggested that this or a similar method be used for calibration of linear displacement sensors to be used to measure micromotion of orthopaedic implants to ensure accuracy and reliability of data and interpreted results.

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Sensors for Industry Conference, 2004. Proceedings the ISA/IEEE

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