Development of InGaAs radiation thermometers

Sakuma, F.; Ma, Laina

doi:10.1109/sice.2008.4654920

Cited by 4 publications

(5 citation statements)

References 3 publications

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“…Si and In0.47Ga0.53As (hereafter referred to as standard InGaAs) photodiodes are currently widely used in radiation thermometry [5,7]. Due to the non-linear spectral power of Planck's law, these detectors' cut-off wavelengths of 1.0 and 1.6 m limit the minimum temperature that can be measured to 400 [5] and 150 o C [7] respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the non-linear spectral power of Planck's law, these detectors' cut-off wavelengths of 1.0 and 1.6 m limit the minimum temperature that can be measured to 400 [5] and 150 o C [7] respectively. As the object temperature decreases, the peak in spectral radiance shifts to longer wavelengths, necessitating the use of narrower bandgap semiconductors to achieve longer cut-off wavelengths.…”

Section: Introductionmentioning

confidence: 99%

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InAs Photodiodes for 3.43 $\mu \text{m}$ Radiation Thermometry

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

InAs Photodiodes for 3.43 $\mu \text{m}$ Radiation Thermometry

et al. 2015

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“…Even though an object has an emission value of 1 in theory, it is not possible in practice. [24][25][26][27]. The emissivity value of the object changes depending on some parameters related to the material of which it is made, for example, the roughness of the surface, its oxidation state.…”

Section: Theorymentioning

confidence: 99%

Calibration Method of Clinical Type Infrared Thermometers and Estimation Uncertainty in Different Blackbody Cavities

Alper

2023

Preprint

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In recent years, radiation thermometers or infrared thermometers are frequently preferred in many different sectors from the health sector to the iron and steel industry, food, agriculture, chemistry and automotive, due to their fast measurement capabilities, reasonable prices, wide measurement ranges and practical use. In this study, the calibration systems of infrared clinical radiation thermometers, which are widely used in our hospitals and homes and become more important with the sudden expansion of their usage areas (closed areas, meeting rooms, shopping malls, schools and offices), especially during the Covid-19 period, were investigated. The measurement of human body temperature is an important physiological measurement used primarily for diagnosis, surgery, especially during pandemic diseases such as covid-19, intensive care and treatment procedures. Different types of clinical thermometers are used in body temperature measurement and we can examine these thermometers in two groups: contact thermometers and non-contact thermometers. To have confidence in the accuracy of the measurements of the temperature measuring device, clinical thermometers, it is important that the device is calibrated traceable to the 1990 International Temperature Scale (ITS-90).

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“…For different filter responses and different interpolation equations this may not be the case. The interpolation equation used here is Planck's form of the Sakuma-Hattori equation, and its inverse [10].…”

Section: Filtersmentioning

confidence: 99%