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Reference wavelength method for a two-color pyrometer.

J W Hahn, C Rhee

|June 5, 2010

Summary

This summary is machine-generated.

This study derives an analytical formula for two-color pyrometer ratio temperature using the reference wavelength method. It simplifies radiance error calculations by showing single-color pyrometer correction factors are directly applicable.

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Area of Science:

Optical Engineering
Temperature Measurement
Pyrometry

Background:

Two-color pyrometers measure temperature based on radiance ratios at two wavelengths.
The reference wavelength method offers a framework for pyrometer analysis.
Accurate temperature determination requires accounting for spectral response and radiance errors.

Purpose of the Study:

To derive an analytical formula for the ratio temperature of a two-color pyrometer using the reference wavelength method.
To determine effective wavelengths and correction factors for a specific pyrometer channel.
To calculate radiance errors and assess the applicability of single-color pyrometer correction factors.

Main Methods:

Application of the reference wavelength method for two-color pyrometer analysis.
Derivation of an analytical formula for ratio temperature.
Determination of effective wavelengths and correction factors for a triangular spectral response.
Fitting effective wavelength and correction factor curves to functional forms of temperature.
Calculation of radiance errors based on fitted curves.

Main Results:

An analytical formula for two-color pyrometer ratio temperature was derived.
Effective wavelengths and correction factors were determined for a specific spectral response.
Radiance errors were calculated by fitting effective wavelength and correction factor curves.
A key finding is that single-color pyrometer correction factors can be directly used in two-color pyrometers.

Conclusions:

The reference wavelength method provides a robust framework for two-color pyrometer analysis.
The derived analytical formula simplifies temperature ratio calculations.
Correction factors from single-color pyrometers can be efficiently utilized in two-color pyrometers, reducing computational complexity.