Image:4-30 control derivative.png

The derivative of the simulated field in the magnetic yoke as measured in Tesla per inch. Notice how there is a great amount of noise in the data, suggesting that there is a need for smoothing. Between the left side of the graph and the red line is the area representing where liquid would be present in a flow cell. The area to the right of the black line represents where the liquid would be in one of the thin walled micro-centrifuge tubes.