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Combine Yield Monitors

Combine Yield Monitors. Impulse Yield Sensors. Micro Trak. John Deere Case Ag Leader. Impulse Flow Meter Force Vectors. Dynamincs of an Impulse Flow Meter. Non-Impulse Yield Sensors. Nuclear - Massey Ferguson - Europe High Frequency Radio Waves New Holland - Not marketed.

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Combine Yield Monitors

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  1. Combine Yield Monitors

  2. Impulse Yield Sensors Micro Trak John Deere Case Ag Leader

  3. Impulse Flow Meter Force Vectors

  4. Dynamincs of an Impulse Flow Meter

  5. Non-Impulse Yield Sensors Nuclear - Massey Ferguson - Europe High Frequency Radio Waves New Holland - Not marketed

  6. Capacitance Moisture Sensors Micro Track John Deere Ag Leader Case

  7. Capacitance Moisture Sensors

  8. Sources of Yield Map Error • Unknown swath width • Time lag of grain through combine • GPS error • Multiple paths through combine • Surging of grain through combine • Grain losses • Sensor Calibration

  9. Sources of Impulse Yield Sensor Error • Grain Moisture • Grain Test Weight • Grain Temperature • Grain Cultivar • Grain Species • Contamination • Dirt • Plant oils, sap, etc.

  10. Effect of Lag Time on Combine Yield Measurements Crop Yield Along Swath Actual Grain Yield Yield t P t0 Yield Yield Monitor Measured Grain Yield P t

  11. Grain Flow Rate

  12. Comparison on Raw and Filtered Combine Flowrate Data

  13. Smoothing Effect of the Straw Walkers

  14. Yield Monitor 26.4 bu/ac Satellite Estimate 28.7 bu/ac Combine Yield Monitor and Satellite Estimated Wheat Yield Maps

  15. GPS Error in Corn – Loss of Differential Correction Signal Oklahoma Panhandle, 1998

  16. Two Combines in the Field with only One Equipped with GPS Oklahoma Panhandle, 1997

  17. Corn Yield Surface with Krieging Oklahoma Panhandle, 1997

  18. Corn Yield Surface with Krieging Oklahoma Panhandle, 1998

  19. Wheat Yield Under a Center Pivot Irrigation System Oklahoma Panhandle, 1998

  20. Wheat Yield Under a Center Pivot Irrigation System Oklahoma Panhandle, 1997

  21. Wheat Yield Under a Center Pivot Irrigation System Oklahoma Panhandle, 1997

  22. Wheat Yield Under a Center Pivot Irrigation System Oklahoma Panhandle, 1998

  23. Data Misaligned Because of the Lag in the Combine

  24. Error Caused by the Lag in the Combine

  25. Missing Data

  26. English Wheat Field - Single Soil Type

  27. Southwest Iowa Corn Field Yield Moisture

  28. Manning Iowa Corn Field Northwest Corner 2 Fields Merged

  29. Soybean Yield and pH Maps

  30. Current Yield Monitors • Mass-flow sensor • Volumetric-flow sensor • Conveyor belt load sensor • Trailer load sensor • Torque transducer

  31. Basics of Yield Monitoring • Possible Crops to Monitor • Wheat and other grains • Cotton • Potato and Sugar Beets • Beans • Rice • Specialty Crops • Grapes, Tomatoes, Carrots, etc.

  32. Yield Mapping Trailer(Sugar Beet Harvest)

  33. Yield Mapping Trailer • Measures change in weight in the trailer while allowing for comparison at different times. • Can be used for any crop that is loaded into a trailer continuously while harvested.

  34. Conveyor Yield Monitor

  35. Corn Silage • The drive shaft of the base unit powering the cutterhead, feedrolls, and front attachment, are instrumented with strain gauge torque transducers. • Cutting power is linearly related to material feedrate. • Material flow can be expressed as: • Fr(t)=Yi(t)Sp(t)W

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