WHQuiz Answer #4 - Load Cell Roller Advantages

WebHandlersQuiz 4: Tension Control – Name one advantage of using a tension load cell roller has over a dancer roller in a closed-loop tension control system?

A tension load cell roller, when properly calibrated, provides a signal proportional to the web tension.

A dancer roller provides some feedback on input to output speed variations, but does not indicate tension variations.

Load cell rollers can be used with limited wrap angle and areas where the web can only be contacted on one side.

Load cell rollers will tend to hold their alignment better.

Holding their alignment combined with their potentially smaller wrap angle means less likelihood of wrinkles relative to dancers.

More on this topic was covered in this archived Web Lines column: Well Done Tension Sept. 2002  

If you missed it, here are all 20 questions in my Web Handler's Quiz

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