Temperature Sensor Correction for Heat Conduction Errors
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Solution Overview
Problem
Existing temperature measurement methods in heating and cooling systems face inaccuracies due to heat conduction errors from immersion sleeves, requiring complex and costly modifications to correct these errors, and existing solutions do not efficiently address measurement errors in direct measurements without immersion sleeves.
Innovation Solution
A method and device that utilize correction characteristics stored in a memory unit to correct heat conduction errors caused by immersion sleeves, allowing for accurate temperature measurements without replacing existing immersion sleeves, and enabling direct measurements with appropriate correction for mechanical environment differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If immersion sleeves are used for temperature measurement in existing heating and cooling circuits, then the measurement system can be installed without modifying existing circuits, but heat conduction errors occur that reduce measurement precision
Solution Approach 1:
The patent introduces correction characteristics as an intermediary computational element that mediates between the imperfect immersion sleeve measurement and the true temperature value. The correction characteristic, stored in memory, acts as a mathematical mediator that compensates for the heat conduction effects of the immersion sleeve, allowing the use of simple immersion sleeve installations while achieving high measurement precision through computational correction.
Solution Approach 2:
The patent changes the parameter being measured from direct temperature to corrected temperature by applying correction characteristics. The measurement system transforms the raw temperature signal through computational parameter changes using stored correction data, thereby converting the imperfect immersion sleeve measurement into an accurate temperature reading without physical modification of the immersion sleeve.
2Measurement precision
If correction methods are implemented to compensate for heat loss errors, then measurement precision improves, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing correction characteristics in memory before the actual temperature measurement takes place. The correction data is prepared in advance for different immersion sleeve configurations and operating conditions, so that during measurement, only a simple lookup and application of the pre-computed correction is needed, rather than performing complex real-time calculations or using complex hardware compensation mechanisms.
Solution Approach 2:
The patent uses copying by storing correction characteristics in memory that replicate the complex heat conduction behavior patterns. Instead of physically modeling or replicating the thermal behavior through complex hardware, the system creates a digital copy of the correction data that can be easily stored and applied, significantly reducing device complexity while maintaining high measurement precision.
3Ease of manufacture
If immersion sleeves are permanently installed in existing circuits, then system modification is avoided and installation is simplified, but measurement errors due to heat conduction cannot be eliminated
Solution Approach 1:
The correction characteristic serves as a computational intermediary that bridges the gap between the simple, permanently installed immersion sleeve and the accurate temperature measurement requirement. This intermediary allows the system to maintain the installation simplicity of permanent immersion sleeves while achieving measurement precision comparable to complex modified systems.
Solution Approach 2:
The patent replaces the mechanical/physical approach to error compensation (which would require modifying the immersion sleeve or circuit) with a computational substitution. Instead of physically altering the immersion sleeve to eliminate heat conduction effects, the system uses mathematical correction algorithms to substitute for the physical modification, achieving the same precision goal through information processing rather than mechanical means.
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 environmentally friendly and cost-effective temperature measurements by correcting heat conduction errors in existing immersion sleeves, allowing continued use of existing systems without modification, and improving measurement accuracy in both indirect and direct measurement scenarios.
Implementation Method 1
temperature sensor which can be immersed or is immersed indirectly via an immersion sleeve in a medium whose temperature is to be measured
Implementation Method 2
heat transfer parameters for compensating the temperature measured by the sensor as a function of heat transfer between the sensor and the medium to be measured
Data Source
Figure 1~2
AI summary
The method involves immersing a temperature sensor indirectly over an immersion sleeve or directly in a medium for measuring the temperature and arranging the temperature sensor as a firmly installed component. The direct measurement is carried out by the temperature sensor that is directly immersed into the medium. Independent claims are also included for the following: (1) a measuring arrangement for temperature measurement; and (2) a method for operating a measuring arrangement.