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. Author manuscript; available in PMC: 2020 May 20.
Published in final edited form as: IEEE Trans Haptics. 2020 Jan 16;13(1):152–158. doi: 10.1109/TOH.2020.2967366

Fig. 3.

Fig. 3.

Diagram showing representitive force traces recorded for the surface topology recognition task, which were used during combined ridge height and spacing test.