A twin-wire former in a paper machine has two forming wire loops, which define between themselves a twin-wire zone. Measurements of the supplied electricity are detected. By combining voltages sensed by these electrode sensors to the probe’s measured voltage, the detector can correct the contact probe measurement for voltages that bypass the contact probe or other conductors in the vicinity that product their own capacitive charging currents. The colorimetric value of the additional point is interpolated based on those of grid points around the additional point in the first colorimetry using, as weights, the distances on the color space between the colorimetric value of the additional point and those of the grid points around the additional point in the second colorimetry. One example method of forming a memory array can include forming a conductive material in a number of vias and on a substrate structure, the conductive material to serve as a number of conductive lines of the array and coupling the number of conductive lines to the array circuitry. The variable ratio of force-enlargement master cylinder has a cylinder, an outer piston, and an inner piston, in which comprise a plurality of cavities and openings therein.