Liquid Calibration Composition for Infrared Reflectance Accuracy
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Solution Overview
Problem
Existing infrared light reflectance systems used for soil testing require periodic calibration to ensure accuracy, but traditional methods using reference pucks are limited in accuracy and versatility.
Innovation Solution
A calibration composition comprising a liquid carrier, metal oxide particles, and an acid, with a pH of about 1 to 7, is used to improve the calibration of infrared light reflectance systems, offering enhanced accuracy and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional reference pucks are used for calibration, then the calibration process is simple to perform, but the accuracy and reliability of calibration are limited
Solution Approach 1:
The patent changes the physical state of the calibration reference from solid (reference puck) to liquid (calibration composition). This parameter change enables improved accuracy because the liquid composition can be formulated with specific pH ranges (1-7) and particle suspensions that provide more consistent and measurable reflectance properties across different infrared wavelengths, while still maintaining ease of use through simple application methods
Solution Approach 2:
The calibration composition uses composite materials consisting of metal oxide particles (such as titanium dioxide, zinc oxide, or magnesium oxide) suspended in a liquid carrier with controlled pH. This composite structure provides enhanced infrared reflectance properties and measurement consistency compared to traditional solid reference pucks, improving calibration accuracy while the liquid form maintains operational simplicity
2Adaptability or versatility
If traditional solid reference materials are used, then the calibration setup is straightforward, but the versatility for different light spectrums is limited
Solution Approach 1:
By changing from solid to liquid state, the calibration material can be formulated to respond to a broader range of infrared wavelengths. The liquid composition allows for optimization of particle size, concentration, and pH to match specific infrared sensor spectral responses, enhancing versatility across different light spectrums without adding system complexity
Solution Approach 2:
The liquid calibration composition is designed to serve multiple calibration functions across different infrared wavelengths and sensor types. The same basic composition can be adjusted through pH and particle concentration to calibrate various infrared reflectance sensors, making the system universally applicable without requiring multiple specialized reference materials
3Reliability
If periodic calibration is performed to maintain accuracy, then measurement reliability is ensured, but time and operational interruptions occur
Solution Approach 1:
The liquid calibration composition is designed as a consumable that can be quickly applied and discarded after use. This disposable approach eliminates the need for complex cleaning and maintenance of reusable reference materials, reducing calibration time while ensuring reliable measurements through fresh, consistently formulated calibration solutions for each calibration event
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
The proposed solution achieves improved accuracy and reliability in calibrating infrared light reflectance systems, allowing for broader light spectrums and easier maintenance, thereby enhancing the precision of soil testing.
Implementation Method 1
at least a portion of the plurality of particles is adapted to reflect infrared light
Data Source
AI summary
Aspects generally relate to systems, apparatuses, and methods for calibrating an infrared light reflectance system. Additional aspects relate to liquid compositions adapted for the calibration of an infrared light reflectance sensing system. In accordance with one aspect, a method is provided for calibrating an infrared reflectance device using a liquid composition. The method typically includes providing a composition comprising a plurality of particles and a liquid carrier; emitting an infrared light at the composition using a light source to produce a reflected light; and sensing the reflected light from the composition using a sensor.