Evaluation of a long-range transmitter for use with a magnetic tracking device in motion analysis

The suitability of a long-range transmitter was evaluated for use with a Polhemus Fastrak ® magnetic tracking device in kinesiologic studies. Performance was judged by comparing positional and rotational accuracy to a standard transmitter. Data were obtained at distances of up to 2.7 and 5.0 m for t...

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Bibliographic Details
Published in:Journal of biomechanics 1998-10, Vol.31 (10), p.957-961
Main Authors: Day, Judd S, Dumas, Genevieve A, Murdoch, Duncan J
Format: Article
Language:English
Subjects:
Accuracy
Equipment Design
Error
Evaluation Studies as Topic
Humans
Kinematic
Kinematics
Kinesiology, Applied - instrumentation
Magnetic devices
Magnetic tracking device
Magnetics - instrumentation
Measurement errors
Motion
Three-dimensional
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Summary:The suitability of a long-range transmitter was evaluated for use with a Polhemus Fastrak ® magnetic tracking device in kinesiologic studies. Performance was judged by comparing positional and rotational accuracy to a standard transmitter. Data were obtained at distances of up to 2.7 and 5.0 m for the standard and long-range transmitters, respectively. Use of the long-range transmitter improved system performance allowing reproducible measurements at a greater distance. However, it is necessary to calibrate the system in each new test environment as there can be significant distortion of the magnetic field.
ISSN:0021-9290
1873-2380
DOI:10.1016/S0021-9290(98)00089-X