Measuring Device Calibration Using Air Correction Factor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Optical absorption measurements in measuring devices require laboratory calibration, which is sensitive to system changes and quality of calibration solutions, often unavailable in superior quality, leading to errors and prolonged thermodynamic equilibrium times.
Innovation Solution
A method for adjusting measuring devices using laboratory calibration in air with a correction factor to account for differences between air and calibration solution measurements, reducing susceptibility to contaminated solutions and shortening adjustment times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laboratory calibration is performed using liquid calibration solution, then measurement accuracy is improved, but the process becomes susceptible to contamination errors and requires prolonged thermodynamic equilibrium time
Solution Approach 1:
The patent introduces air as an intermediary medium for calibration, replacing the problematic liquid calibration solution. By performing calibration in air and then applying correction factors to account for the refractive index differences, the system eliminates contamination risks while maintaining measurement accuracy through mathematical compensation rather than physical contact with calibration liquids.
Solution Approach 2:
The patent changes the physical state of the calibration medium from liquid to gas (air), and introduces correction factors that account for refractive index parameters. This parameter change allows calibration to proceed without the harmful effects of liquid contamination while maintaining measurement fidelity through computational adjustment of the calibration values.
2Measurement precision
If laboratory calibration is performed using liquid calibration solution, then measurement accuracy is improved, but the adjustment time is prolonged due to thermodynamic equilibrium requirements
Solution Approach 1:
By using air as the calibration medium instead of liquid, the patent eliminates the need for prolonged thermodynamic equilibrium between the calibration solution and the measuring system. Air reaches thermal equilibrium much faster than liquids, significantly reducing the calibration time while maintaining accuracy through the application of correction factors for refractive index differences.
3Measurement precision
If superior quality demineralized or ultrapure water is used for calibration, then measurement accuracy is improved, but the complexity of obtaining and transporting calibration solution increases
Solution Approach 1:
The patent replaces the complex logistics of obtaining, transporting, and managing superior quality demineralized or ultrapure water with a simple air-based calibration process. Air is universally available and requires no special handling, storage, or quality certification, eliminating the logistical complexity while maintaining calibration accuracy through correction factors.
Solution Approach 2:
The patent uses air, a free and readily available medium, instead of expensive, carefully managed calibration solutions. Air requires no certification, storage facilities, or quality control procedures, making the calibration process simpler and more accessible while achieving the same measurement accuracy through computational correction.
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 method ensures accurate on-site calibration by using a correction factor to adjust the measuring device, minimizing errors from variable calibration solution quality and reducing the time required for thermodynamic equilibrium.
Implementation Method 1
Optical absorption measurements require a laboratory calibration value for determining physical variables such as extinction and the consequent transmission, absorption, etc.
Implementation Method 2
the measuring system and calibration solution must be in a thermodynamic equilibrium
Implementation Method 3
determination of a correction factor for correcting the laboratory calibration value of the measuring device, based upon at least one measurement signal detected by the measuring sensor in air
Data Source
AI summary
The present application relates to a method for adjusting a measuring device for measuring a measurand of a medium using at least one measuring sensor, including: laboratory calibration of the measuring device in a calibration solution, laboratory calibration of the measuring device in air, determination of a correction factor for correcting the laboratory calibration value of the measuring device in air to the laboratory calibration value of the measuring device in the calibration solution, on-site calibration of the measuring device in air, using the correction factor to correct the on-site calibration value of the measuring device in air, and on-site adjustment of the measuring device using the corrected on-site calibration value.