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. 2010 Dec 28;11(1):207–227. doi: 10.3390/s110100207

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© 2011 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 1. — (a) A cross section of the sensor, showing the light transmitter (TX) and receiver (RX) (b) Position of the eight sensitive elements. (c) Overall view of an 8-channel Skilsens Pad.