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GreenStar™
Combine Yield Systems
Consider
this scenario
Your cornfield averaged 130 bushels per
acre. But you suspect some areas yielded
180 bu/acre and other areas only 80. If
you could verify which acres brought you
higher yields (and which didn't), would
you treat them differently? A combine
yield-monitoring or yield-mapping system
allows you to see what each farm is
averaging and will allow you the
capability to look into each field to
see what it is actually yielding.
The
components of a GreenStar Yield System
include:
Mass
Flow Sensor
The mass flow sensor is a curved impact
plate located at the top of the clean
grain elevator that measures true mass
flow. As the grain impacts the plate,
the sensor measures the slightest
movement or impact. This measurement,
along with the clean-grain elevator
speed, is used to calculate harvested
mass of the crop, calculated instantly
and converted to yield. The design of
the sensor provides a high degree of
reliability and accuracy compared to
other sensing technology. An automatic
zero-update (a process similar to
zero-balancing a weight wagon)
eliminates the need to stop the combine
multiple times each day.
To increase accuracy of the mass flow
sensor, auto zeroing software is used.
This system "zero's" the grain flow to
discount any differences in combine
circumstances. In essence, it will zero
the flow at each revolution of the clean
grain elevator chain.
Moisture
Sensor
The moisture sensor for Harvest Doc™ and
Harvest Monitor™ is located at the top
of the combine's clean grain elevator
inside the grain tank. It continuously
samples the grain for moisture content
and temperature. The system
automatically converts the yield to dry
bushels. Additionally, the grain
moisture sensor plates are wiped clean
with every cycle of the sensor's
sampling routine for more accurate and
consistent moisture readings in a
variety of crop conditions.
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