A system is provided for providing automated washing and verifying compliance of use. Further, the plurality of first diffusion particles are contained within the first resin such that an upper surface of the first diffusion layer is substantially flat. Optionally, the probe support structure is attached to the mechanical reference via a column that is thermally resistive. A running time window is defined, and within each window the time shifts are best fit to a straight-line function of time, one angle stack at a time. The encoder module generates a second code word for the second drive.