Methods of Fitting experimental data in several amplifiers for single spot radiometer

TL;DR

This paper presents new fitting functions for the relationship between radiance temperature and amplifier outputs in single spot radiometers, enhancing temperature measurement accuracy in high-temperature industrial environments.

Contribution

It introduces specific fitting functions for various amplifiers used in single spot radiometers, which were not previously reported.

Findings

Fitting functions for current-to-voltage converter established

Fitting functions for non-inverting amplifier developed

Fitting functions for logarithmic amplifier provided

Abstract

Single spot radiometers are widely used to estimate temperature of body heated by high temperature, specially blast furnace, glass fusion, boiler of power plant, and so on. In previous papers on single spot radiometer a heated body was deduced according to interpolation functions between heated body temperature and photocurrent, which had previously measured. However, fitting functions required for current-to-voltage converter, non-inverting amplifier, and logarithmic amplifier have never reported. Therefore, in this paper the fitting functions are reported that can obtain the relationship between radiance temperatures of a body and outputs of amplifiers in single spot radiometer.