Variable Soil Sampling Device Modular Sorbent Adaptability
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Solution Overview
Problem
Current soil sampling methods are limited in their ability to efficiently collect a wide variety of target components simultaneously due to fixed sampling conditions and permeability, making it difficult to optimize sampling for multiple components in a single sampling probe.
Innovation Solution
A variable sampling device with a removable barrier door and interlocking mechanism, allowing for customization of sorbent materials and permeability, enabling the collection of multiple target components by varying the size and number of holes, and using different sorbents in each device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single sampling probe with fixed sampling conditions is used, then the device complexity is low, but the adaptability to sample multiple different target components is insufficient
Solution Approach 1:
The sampling device is divided into multiple detachable sampling probes, each optimized for specific target components. This segmentation allows users to select and combine only the probes needed for their specific sampling requirements, thereby improving adaptability while keeping the actual device complexity manageable through modular design.
Solution Approach 2:
The sampling system employs a universal interface and standardized housing design that allows different types of sampling probes to be attached to the same sampling handle. This multi-functionality enables a single handle to perform multiple sampling functions by simply changing the attached probe, thus improving versatility without proportionally increasing overall system complexity.
2Adaptability or versatility
If multiple different target components are tested in a single soil site, then the sampling coverage is improved, but the difficulty to achieve ideal sampling conditions for each component increases
Solution Approach 1:
Each sampling probe is designed with specific local qualities optimized for its intended target component, such as particular sorbent materials, permeability characteristics, or depth specifications. This local optimization ensures that each probe achieves ideal sampling conditions for its specific purpose, while the overall system maintains versatility through the ability to deploy different probes for different components.
3Productivity
If the permeability of the sampling probe is increased, then the sampling speed is improved, but the measurement precision for certain volatile compounds may be reduced
Solution Approach 1:
The sampling system allows dynamic adjustment of permeability by selecting different probes or modifying probe characteristics based on the specific sampling requirements. For volatile compounds requiring lower permeability to maintain concentration gradients, probes with restricted flow paths or lower permeability materials are selected. For applications requiring faster sampling of less volatile compounds, probes with higher permeability are used, thus optimizing both speed and precision for different scenarios.
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 efficient sampling of various environmental contaminants by allowing for customizable sorbent materials and permeability settings, facilitating the collection of multiple components in a single sampling period with high versatility and accuracy.
Implementation Method 1
Passive sampling may be accomplished by exposing a sorbent material to the soil environment to be sampled and allowing gas samples to be collected over time
Implementation Method 2
The barrier door has holes which may be varied in size and number to provide a desired permeability to the variable sampling device
Data Source
AI summary
Disclosed herein is a variable soil sampling device which may be customized with respect to sampling rate and sorbent material used. Multiple variable sampling devices may be attached to each other to simultaneously sample different components or contaminants in the same time period.