Roller Alignment Using Laser Tracker and Regression Analysis

The patent replaces traditional mechanical measurement systems (theodolites, leveling devices, templates) with an optical measurement system using a laser tracker. The laser tracker uses laser beams to measure distances to reference points on roller elements, eliminating the need for manual mechanical measurements and calculations. This substitution dramatically reduces both alignment time and improves precision.

The patent creates a digital copy of the ideal alignment positions through measurement of reference points, and uses computer-based regression analysis to calculate actual positions. This digital representation and processing of alignment data replaces manual cross-correlation methods and enables faster, more accurate alignment determination.

The patent performs preliminary measurement and calculation of optimal alignment positions before any physical repositioning is needed. By using the laser tracker to measure reference points and computing the ideal positions through regression analysis, the system determines all necessary adjustments in advance, allowing for efficient, coordinated repositioning rather than sequential trial-and-error adjustments.

The measurement system is self-referencing, using reference points mounted directly on the roller elements themselves rather than requiring external fixed references. This allows the system to determine its own alignment requirements independently, eliminating the need for external reference structures and simplifying the repositioning process.

The system uses reference marks that are self-referencing, mounted directly on the roller elements being measured rather than on external fixed structures. This allows the measurement system to automatically compensate for thermal expansion and foundation settlements by measuring the relative positions of all reference points simultaneously and calculating ideal alignment positions based on the measured configuration, making the measurements independent of external reference stability.

The patent implements a feedback mechanism where the measured positions of reference points are fed into a regression analysis calculation that determines the ideal alignment positions. This feedback loop allows the system to continuously adjust and optimize alignment based on actual measured conditions, compensating for environmental factors like thermal expansion and foundation movement.