Method for extracting and classifying sheet variation patterns from two-dimensional sheet measurements

A method for determining variations of a sheet of material as said sheet of material is being manufactured comprising the steps of:

• measuring at least one characteristic of said sheet across at least a portion of an entire width of said sheet to generate a two-dimensional measurement of sheet variations;
• identifying at least one variation pattern which can be within said two-dimensional measurement as a result of manufacture of said sheet by determining at least one basis vector closely associated with said variation pattern;
• processing said two-dimensional measurement to extract a variation pattern corresponding to said at least one variation pattern from said two-dimensional measurement;
• and
• utilizing said extracted variation pattern for the manufacture of said sheet of material.

A method for determining variations of a sheet of material as said sheet of material is being manufactured comprising the steps of:

• measuring at least one characteristic of said sheet across at least a portion of an entire width of said sheet to generate a two-dimensional measurement of sheet variations;
• identifying at least one variation pattern which can be within said two-dimensional measurement as a result of manufacture of said sheet by determining a set of basis vectors closely associated with said variation pattern;
• processing said two-dimensional measurement to extract a variation pattern corresponding to said at least one variation pattern from said two-dimensional measurement;
• and
• utilizing said extracted variation pattern for the manufacture of said sheet of material.

A method for determining variations of a sheet of material as said sheet of material is being manufactured comprising the steps of:

• measuring at least one characteristic of said sheet across at least a portion of an entire width of said sheet to generate a two-dimensional measurement of sheet variations;
• identifying at least one variation pattern which can be within said two-dimensional measurement as a result of manufacture of said sheet by determining at least one basis matrix closely associated with said variation pattern;
• processing said two-dimensional measurement to extract a variation pattern corresponding to said at least one variation pattern from said two-dimensional measurement;
• and
• utilizing said extracted variation pattern for the manufacture of said sheet of material.

A method for determining variations of a sheet of material as said sheet of material is being manufactured comprising the steps of:

• measuring at least one characteristic of said sheet across at least a portion of an entire width of said sheet to generate a two-dimensional measurement of sheet variations;
• identifying at least one variation pattern which can be within said two-dimensional measurement as a result of manufacture of said sheet by determining a set of basis matrices closely associated with said variation pattern;
• processing said two-dimensional measurement to extract a variation pattern corresponding to said at least one variation pattern from said two-dimensional measurement;
• and
• utilizing said extracted variation pattern for the manufacture of said sheet of material.

A method for determining variations of a sheet of material as said sheet of material is being manufactured comprising the steps of:

• measuring at least one characteristic of said sheet across at least a portion of an entire width of said sheet to generate a two-dimensional measurement;
• identifying a plurality of variation patterns which can be within said two-dimensional measurement as a result of manufacture of said sheet;
• processing said two-dimensional measurement to extract at least one of said plurality of variation patterns contained within said two-dimensional measurement;
• and
• utilizing said at least one extracted variation pattern for manufacture of said sheet of material.

A method for characterizing separate components of a composite material sheet, made up of at least two layers, said method comprising the steps of:

• measuring at least one characteristic of said composite material sheet across at least a portion of an entire width of said sheet to generate a two-dimensional measurement;
• classifying component patterns contained within said two-dimensional measurement and corresponding to said at least two layers;
• processing said two-dimensional measurement to extract at least one component pattern contained within said two-dimensional measurement;
• and
• separating said at least one component pattern from said two-dimensional measurement to enable evaluation of a remainder of said composite material sheet.

A method for extracting process response models from a measurement of a sheet of material as said sheet of material is being manufactured, said method comprising the steps of:

• applying a group of pre-defined patterns to a group of process actuators used to manufacture said sheet of material;
• measuring at least one characteristic of said sheet of material across at least a portion of an entire width of said sheet to generate a two-dimensional measurement;
• processing said two-dimensional measurement to identify variation patterns that are associated with said group of pre-defined patterns;
• and
• convoluting said group of pre-defined patterns with said measurement to extract process response models that correspond to said group of process actuators.