Soil-Water Subsample Measurement for Rapid Nutrient Analysis
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Solution Overview
Problem
The existing soil measurement processes, which involve drying and grinding, are labor-intensive, costly, and time-consuming, leading to inaccurate results due to changes in soil mineralogy and require additional labor for sample preparation and tracking, while also limiting real-time analysis capabilities.
Innovation Solution
A process for homogenizing and measuring soil-water samples that eliminates the need for drying and grinding, allowing for rapid and robust analysis of large numbers of field samples by mixing and diluting the samples to create a representative soil-water mixture for measurement, which can be performed at various locations, including in the field or remotely, using devices like the soil-water device and test well device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If drying and grinding process is used, then measurement precision is improved, but loss of time increases and productivity decreases
Solution Approach 1:
The patent changes the physical state parameter of the soil sample from dry to wet/slurry form, eliminating the need for drying and grinding while maintaining measurement accuracy through chemical extraction methods that work effectively in liquid medium
Solution Approach 2:
The patent replaces the mechanical drying and grinding system with a chemical extraction system that uses liquid reagents to dissolve and analyze soil nutrients directly, eliminating time-consuming mechanical processing steps
2Measurement precision
If drying and grinding process is used, then measurement precision is improved, but productivity decreases
Solution Approach 1:
The patent changes the sample state from dry to wet/slurry form, enabling rapid chemical extraction and analysis that dramatically increases throughput while maintaining measurement accuracy through validated extraction protocols
Solution Approach 2:
The patent replaces mechanical processing (drying and grinding) with chemical extraction methods that can be performed rapidly in liquid medium, increasing the number of samples that can be processed per unit time
3Stability of the object's composition
If drying process is used, then sample homogeneity is improved, but object-affected harmful factors increase due to mineralogy changes
Solution Approach 1:
The patent inverts the conventional approach by not removing water from the soil sample but rather adding more water to create a slurry, thereby avoiding the harmful mineralogy changes that occur during drying while achieving homogeneity through liquid mixing
Solution Approach 2:
The patent changes the moisture content parameter from low (dry) to high (wet/slurry), eliminating mineralogy changes while achieving sample homogeneity through the fluid properties of water that facilitate uniform mixing and distribution of soil particles
4Device complexity
If traditional processing is used, then device complexity is reduced, but loss of substance increases due to sample degradation
Solution Approach 1:
The patent replaces mechanical processing steps with chemical extraction in liquid medium, reducing physical handling and degradation while maintaining relatively simple processing equipment and procedures
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
This approach reduces labor and shipping costs, provides faster turn-around times for soil analysis, improves measurement accuracy by maintaining soil homogeneity, and enables area-based or time-based pricing for soil analysis, independent of sample density, allowing for more frequent and dense field sampling.
Implementation Method 1
A process for homogenizing and measuring soil-water samples provides for rapid, robust analysis of large numbers of field samples in a short time frame. This removes the need for dry-and-grind type testing.
Data Source
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AI summary
A device and method for measuring field samples in a liquid form removes the need for dry-and-grind type testing. A field sample is received taken from a location in a field. A soil subsample is separated from the field sample. The soil subsample is mixed with water, and a soil-water subsample is selected and transferred for testing. The soil-water subsample is measured to determine attributes of the field sample. The field sample may be measured in the field where it was taken, at a local field office located close to the field, or at a remote laboratory. To test remotely, a test well device is prepared which stores a number of soil- water subsamples. Time and cost savings allow for area-based pricing of soil analysis, largely independent of the density at which field samples are tested.