With a takeup device providing a fixed takeup pulley,
the total length of the belt in the top run and return run
is a constant value independent of the belt conveyor
system operating and load states.
In the event of conveyor belts providing a quasi-linear
tension-elongation characteristic curve in the operating
range of the belt, a constant belt length also implies a
constant mean belt tension FTm. This, however, implies
that the belt tension at the location of the takeup device
depends on the local belt tension curve in the respective
load and operating state of the conveyor belt system.
Takeup force FSp (= force at the axis of the takeup pulley)
is, thus, a valu