Improved Capacitive Proximity Detection for Conductive Objects through Target Profile Estimation

Figure 7

(a) Measured raw capacitive responses and the fitting curve for the plate. (b) Measured raw capacitive responses and the fitting curve for the sphere. (c) Measured raw capacitive responses and the fitting curve for the cylinder. (d) A comparison of capacitive responses for the three objects. An example of the calculation of the absolute and relative errors caused by using the wrong regression model is demonstrated.

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