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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: IEEE Sens J. 2010 Jun 1;10(6):1085–1090. doi: 10.1109/jsen.2010.2041223

Fig. 9.

Fig. 9

The change in Am (maximum 2nd order harmonic field amplitude) and hm (DC biasing field that corresponded to the maximum 2nd harmonic amplitude) of Sensor A was curve-fitted with the 3rd order and 2nd order polynomial curves, respectively. The ratio of the measured to calculate signal amplitude is also plotted.