The existing instrumentation of a soil bin was retrofitted with virtual instrumentation techniques to achieve improved repeatability and more precise measurements. Current-loop sensors were added to the prime mover for improved speed control. Soil preparation operations were instrumented to determine penetrometer forces as a function of soil penetration depth, soil surface smoothness, compaction force, and soil surface elevation. Test hitch-points for agricultural implements were instrumented with wheatstone bridge force transducers. Implement depth was found with ratiometric linear transducers. Distance and speed determinations utilized an optical encoder with a resolution of 3.0 × 10-4 m. Temperature measurements were also recorded with solid state current transducers.
Virtual Instrumentation of a Soil Bin for Improved Precision
Sae Technical Papers
International Off-Highway & Powerplant Congress & Exposition ; 1999
1999-09-14
Conference paper
English
Virtual Instrumentation of a Soil Bin for Improved Precision
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