A method and hardware kit to upgrade application-specific optical instruments. The machine includes a film drive and pinch roll pair, a pair of film pull belts, and a pair of zipper drive rollers for pulling plastic film and zippered strip through the machine. The change or exchange of gas for the second liquid in the radiographic marker produces a detectable signal intensity of the radiographic marker in a second imaging modality different from the first imaging modality. In the electric field relaxation region, an isolating part is provided. The self-capacitance variation values are generated by a deformation of the deformable insulating layer under an external force.