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. Author manuscript; available in PMC: 2015 Jun 18.
Published in final edited form as: IEEE Trans Neural Syst Rehabil Eng. 2008 Oct;16(5):497–504. doi: 10.1109/TNSRE.2008.2003375

Fig. 2.

Fig. 2

eTDS prototype implemented on a hardhat for human trials. Insets clockwise from top: control unit, three-axis magnetic sensor, and permanent magnetic tracer attached on the subject’s tongue using tissue adhesive.