Importance

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Abstract

The tension in a filament is measured by deflecting the filament between two outer contact elements by a centrally-located deflecting contact element. A computer receives signals related to the displacement of the contact members, the force on the deflecting contact member and a plurality of relative displacement intervals of the contact elements. The computer determines a plurality of incremental force values related to the force on the deflecting contact element at each of the displacement intervals and calculates the tension in the filament based on the selected incremental force values. Force on the deflecting is measured by obtaining a force signal created by force on the deflecting contact element, establishing two different set values which are related to but not the same as the force signal, comparing the two set values with the force signal, amplifying the difference between each of the two set values and the force signal by a predetermined gain factor to create two final values within a predetermined range of values, and calculating the force on the deflecting contact element by a mathematical operation which uses the two set values, the final values, and the gain factor.

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First Claim