Abstract：
:Electromagnetic tracking devices are used in many biomechanics applications. Previous studies have shown that metal located within the working field of direct current electromagnetic tracking devices produces significant errors. However, the effect of sampling rate on the errors produced in a metallic environment has never been studied. In this study, the accuracy of Ascension Technologies' Flock of Birds was evaluated at sampling rates of 20, 60, 100, and 140 Hz, in the presence of both aluminum and steel. Aluminum interference caused an increase in measurement error as the sampling rate increased. Conversely, steel interference caused a decrease in measurement error as the sampling rate increased. We concluded that the accuracy of the Flock of Birds tracking system can be optimized in the presence of metal by careful choice in sampling rate.
journal_name
J Biomechjournal_title
Journal of biomechanicsauthors
LaScalza S,Arico J,Hughes Rdoi
10.1016/s0021-9290(02)00322-6keywords:
subject
Has Abstractpub_date
2003-01-01 00:00:00pages
141-4issue
1eissn
0021-9290issn
1873-2380pii
S0021929002003226journal_volume
36pub_type
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