Cross web tension measurement and control

A web processing apparatus, comprising:

• at least one web tension adjustment unit for guiding a web, the web tension adjustment unit, comprising:
• a first guide roller, wherein the first guide roller, comprises:
• an adjustment unit;
• one or more first non-contact sensors positioned to measure displacement data of the web at a first location;
• and
• a system controller for controlling the adjustment unit based on the measured displacement data.

A method for processing a web, comprising:

• guiding the web using at least one web tension adjustment unit, wherein the web tension adjustment unit comprises:
• a first guide roller comprising an adjustment unit;
• and
• one or more first non-contact sensors positioned to measure displacement of the web at a first location;
• measuring the displacement of the web at the first location to provide measured displacement data of the web;
• and
• adjusting a position of the first guide roller by moving one end of the first guide roller, wherein adjusting is based on the measured displacement of the web.