One of the bogie wheels on each side of a
chain is replaced with a bogie mounted on a load cell.
For mini-tank harvesters with a scrub chain,
the scrub chain is the preferred location. This allows for full
use of the tank with no effect on yield mapping.
If it is not a mini-tank harvester, then the load cells are
mounted in the truck loading conveyor.
A speed sensor is placed on a shaft collar
of the conveyor on which the load cells are mounted.
This senses conveyor speed and allows the
monitor to calculate a lbs/sec of sugar beet flow.
The leads from the load cells and the conveyor speed sensor come
together into a junction box and one 1/4" wire is sent to the
tractor cab for hooking to the display.