Soil Compaction Measurement Shank with Depth-Specific Load Cells
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for measuring soil compaction are inadequate in providing detailed, depth-specific data necessary for optimal seed placement and fertilizer application, as they fail to accurately account for varying soil density and compaction levels across agricultural fields.
Innovation Solution
An apparatus comprising elongate beams mounted on a shank with load cells that generate signals corresponding to horizontal forces, allowing for the measurement of soil compaction and identification of compaction layers by dragging the shank through the soil, enabling precise calculation of soil conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional soil compaction measurement methods are used, then the measurement process is simple, but the measurement precision and depth-specific data quality are insufficient
Solution Approach 1:
The apparatus divides the measurement function into multiple segments by using several elongate beams (e.g., three beams) positioned at different depths along the shank. Each beam independently measures soil resistance at its specific depth, enabling depth-specific compaction data collection. This segmentation allows the system to capture vertical variations in soil properties that single-point measurements cannot detect.
Solution Approach 2:
The invention transitions from traditional single-point or surface-level soil compaction measurement to multi-dimensional measurement by arranging beams vertically at different depths along the shank. This creates a depth dimension in the measurement system, transforming it from a two-dimensional surface measurement to a three-dimensional volumetric assessment of soil compaction throughout the root zone.
2Measurement precision
If multiple beams at different heights are used to measure depth-specific soil compaction, then the measurement precision improves, but the device complexity increases
Solution Approach 1:
The shank structure serves multiple functions simultaneously: it acts as the support framework for mounting beams, provides the dragging element that moves through soil to enable measurement, and serves as the reference structure for positioning beams at precise depths. This multi-functionality reduces the need for separate support structures, thereby limiting the increase in device complexity despite adding multiple measurement beams.
Solution Approach 2:
The invention merges the measurement function with the existing shank structure by mounting beams directly onto it. Rather than creating a separate complex framework to support multiple beams, the shank itself becomes the mounting structure. This merging approach integrates the support function into an existing component, reducing overall device complexity while enabling multi-depth measurement.
3Reliability
If load cells are coupled to beams to generate force signals, then the measurement precision and reliability improve, but the device complexity and cost increase
Solution Approach 1:
The invention replaces complex mechanical measurement systems with electrical sensing elements (load cells). Instead of using elaborate mechanical linkages, levers, or displacement measurement mechanisms, the system uses load cells that directly convert soil resistance forces into electrical signals. This substitution simplifies the mechanical structure while improving measurement reliability and enabling easier data processing.
4Loss of information
If detailed soil compaction data at multiple depths is collected, then the information quality for farming decisions improves, but the loss of time for data collection and processing increases
Solution Approach 1:
The apparatus enables continuous measurement of soil compaction as the shank is dragged through the field. Multiple beams continuously record soil resistance at different depths simultaneously, creating a continuous profile of soil conditions along the measurement path. This continuous data collection eliminates the need for discrete, time-consuming measurement stops and allows for real-time mapping of compaction patterns across the field.
Solution Approach 2:
The system performs preliminary measurement of soil compaction conditions before planting operations begin. By collecting detailed depth-specific compaction data in advance, farmers can pre-determine optimal planting depths, row spacings, and fertilizer application rates for different field zones. This preliminary information gathering allows subsequent planting decisions to be made quickly without time-consuming on-the-spot analysis.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate measurement of soil compaction and identification of compaction layers, facilitating informed decisions on planting depth and fertilizer application, thereby improving crop yields by tailoring planting parameters to specific soil conditions.
Implementation Method 1
Each load cell of the plurality is coupled to the shank and to a beam of the plurality such that a horizontal force on the beam induces the load cell to generate a signal corresponding to a force on the beam
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An apparatus for measuring a soil condition includes a plurality of elongate beams mounted on opposing sides of a shank and arranged at different heights along the shank, and a plurality of load cells. Each load cell of the plurality is coupled to the shank and to a beam of the plurality such that a horizontal force on the beam induces the load cell to generate a signal corresponding to a force on the beam. A method includes dragging at least a portion of a shank through soil, inducing a force on each of a plurality of load cells related to horizontal forces on the plurality of beams, and generating signals with the load cells. The method may be used to measure soil compaction and/or identify a compaction layer.