Sensors connection for yield determination on round balers with variable chamber

https://doi.org/10.17221/24/2010-RAECitation:Kroulík M., Mašek J., Kvíz Z., Jošt B., Prošek V. (2011): Sensors connection for yield determination on round balers with variable chamber. Res. Agr. Eng., 57: 51-55.
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The main aim of this article is to present a technical solution for straw and forage yield mapping when using round balers with variable chamber for harvest. The yield measurement is based on monitoring of instantaneous position of a tension roller mechanism for press chamber circular belt. Wheat straw was harvested – baled, during our trial measurements. The acreage of the trial field was 12 ha. Calibration of the measuring system showed a strong dependence of the tension roller position on the amount of pressed straw (R2 = 0.99). Geostatistical evaluation confirms a spatial relationship of measured data sets with a moderate spatial dependence. Finally, yield map of straw was created
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