3-Rollers / Function

- tiny forces - - big forces - - function -


3 - roller tensile force sensor consist of : one radialforce sensor with fixed mounted material-guidings, which are 
arranged right and left next to the measuring roller. This guide-rollers ensure a constant angle around the 
measuring roller.

Guiding the material


The material, which should be measured, 
run over the sensor and the guiding-elements.

This arrangement is preferably for measurements 
of high tensile-forces at material having a bigger diameter. 
A negligible small deviation of the material is realizable. An 
alteration of the diameter of the material does not change 
the angle around the measuring-roller.

  The material to be measured run over the sensor and 
under the guiding elements.

Usual way to guide the material. There is no difference 
between run-in and run-out for the material which is 
measured. Advantageous for material which is flexible. 
In case the diameter of the material will be changed, 
either a reproducible measuring-error must be taken 
into consideration or it needs a new calibration. For 
measuring stiff material, a higher distance between 
the two guiding elements is necessary.

  The material to be measured is guided under the first 
guiding-element, over the sensor and the second 

A combination of material-guiding A) and B). Especially 
usable for measurement by hand. It offers an easy 
threading. Simply turn the sensor.

Most of the 3-roller sensors are executed in a manner, that the customer themselves can adjust the guiding 
elements like A) B) or C).