Straightness, direction, axis, rotation, Oscillation, Resonance analysis, Underground engineering, Robotic, Plumb, matching, drawdown, bending, evenness, flatness, levelness, rigging, conveyor, adjustment, coordinates, creep, deviation, Railway track bed, Ship movement, construction machinery, deviation, Axes, process and system control, presence control, deflection, excavator, image processing, drill hole, bridges, CCD, Distance, contactless measurement, displacement, driving depth of water, chassis , spot, length, pylon deformation, parallelism, precision enhancement, quality assurance, regression circle