Virtual Instrumentation of a Soil Bin for Improved Precision

Paper #:
  • 1999-01-2825

Published:
  • 1999-09-14
Citation:
Boonmung, S., Eaton, F., and Jordan, K., "Virtual Instrumentation of a Soil Bin for Improved Precision," SAE Technical Paper 1999-01-2825, 1999, https://doi.org/10.4271/1999-01-2825.
Pages:
7
Abstract:
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.
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