Radiation Thermometer Quantum Theory Correction Method

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Solution Overview

Problem

Radiation thermometers face challenges in accurately measuring real temperatures due to the difficulty in determining the radiance correction factor ε(λ·T), which varies with material, surface state, wavelength, temperature, and environmental factors, leading to deviations between measured brightness temperature and actual object temperature.

Innovation Solution

A quantum theory correction method and system that involves measuring standard temperatures and thermal radiation signals, processing data using physical models to obtain parameters reflecting energy level structures, and calibrating the radiation thermometer to improve accuracy by determining the correct radiance correction factor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If radiance correction is applied using classical blackbody radiation theory, then temperature measurement can be performed on real objects, but measurement precision deteriorates because the radiance correction factor ε(λ·T) cannot be precisely determined

Engineering Contradiction:
Improvetemperature measurement capabilityVSAvoidtemperature measurement accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent transitions from classical blackbody radiation parameters to quantum theory parameters by introducing energy level structure characteristics. The radiance correction is reformulated using quantum mechanical parameters (energy levels, transition probabilities) rather than classical continuous radiation parameters, enabling precise determination of the correction factor for real objects.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces quantum theory as an intermediary framework that bridges the gap between ideal blackbody radiation and real object radiation. By using quantum mechanical descriptions of energy level structures as intermediaries, the patent enables accurate radiance correction without requiring direct measurement of difficult-to-obtain classical parameters.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the radiance correction factor ε(λ·T) is determined through classical methods, then some correction can be applied, but the correction becomes inaccurate due to dependence on multiple varying factors

Engineering Contradiction:
Improveradiance correction reliabilityVSAvoidtemperature measurement accuracy
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent changes the parameter set from classical continuous spectral radiance parameters to quantum discrete energy level parameters. This transformation makes the radiance correction factor determinable through quantum mechanical calculations based on known energy level structures, reducing dependence on uncertain classical parameters.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If quantum theory correction is applied, then measurement precision is significantly improved, but device complexity increases due to advanced physical model requirements

Engineering Contradiction:
Improvetemperature measurement accuracyVSAvoidphysical model complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts the essential quantum mechanical features (energy level structures, transition probabilities) from the complex quantum theory framework and applies only these necessary elements to the radiance correction. This selective extraction maintains measurement precision while reducing the burden of implementing full quantum theory.

Inventive Principle:
Principle #2Taking out (Extraction)

4Device complexity

If classical blackbody radiation model is used, then device complexity is low, but measurement precision deteriorates because real objects deviate from ideal blackbody behavior

Engineering Contradiction:
Improveradiation model simplicityVSAvoidtemperature measurement accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent changes the fundamental parameters of the radiation model from classical continuous spectral distribution to quantum discrete energy level transitions. This parameter change enables accurate modeling of real object radiation characteristics while maintaining a relatively simple correction framework based on quantum mechanical principles.

Inventive Principle:
Principle #35Parameter changes

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

Significantly improves the accuracy of temperature measurement by overcoming the limitations of classical theories and radiance correction methods, allowing for precise determination of object temperatures despite varying radiation conditions.

Implementation Method 1

receives thermal radiation energy of the object to be measured through optical system

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Implementation Method 2

converts it into electrical signals

Methodology Applied
Scientific EffectPhotoelectric effect: Photoelectric Effect

Data Source

PatentUS9091602B2Quantum theory correction method and system for improving accuracy of temperature measurement of radiation thermometer
Publication Date: 2015.07.28 TIANJIN YITONG ELECTRIC TECH DEV
  • US9091602B2 patent drawing
  • US9091602B2 patent drawing
  • US9091602B2 patent drawing

AI summary

The present invention provides a quantum theory correction method for improving the accuracy of temperature measurement of radiation thermometer and a radiation thermometer system. The invention is related to the radiation thermometer in the field of instrumentation. The present invention acquires parameters reflecting energy level structure by adopting effective physical model to process data and using keyboard input or data transmission. The temperature of the object to be measured is finally acquired and displayed on the displayer. The quantum theory correction method and radiation thermometer system effectively overcome the difficulty that the value of radiance ε(λ·T) cannot be accurately measured in the event that radiance correction method is used to improve the accuracy of radiation thermometer. Thus, the accuracy of thermometer is improved significantly.