Spectral stray light effect on high-temperature measurements using a near-infrared multi-wavelength pyrometer

Fu, Tairan; Duan, Minghao; Liu, Jiangfan; Li, Teng

doi:10.1016/j.infrared.2014.10.004

Cited by 21 publications

(7 citation statements)

References 39 publications

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“…The calibration procedure and measurement performance of the near-infrared spectrometer used in the experiments have been sufficiently discussed referring to Refs. [39][40]. The measurement uncertainty in the spectral intensity using the spectrometer was assumed to be 2%.…”

Section: Methodsmentioning

confidence: 99%

Measurements of the directional spectral emissivity based on a radiation heating source with alternating spectral distributions

Fu¹,

Duan²,

Tang³

et al. 2015

International Journal of Heat and Mass Transfer

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Section: Methodsmentioning

confidence: 99%

Measurements of the directional spectral emissivity based on a radiation heating source with alternating spectral distributions

Fu¹,

Duan²,

Tang³

et al. 2015

International Journal of Heat and Mass Transfer

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“…The multi-wavelength pyrometer is a powerful tool for measuring the true temperature of the target surface [1][2][3], and is widely used in the field of high temperature and ultra-high temperature measurement [4,5], in which the accuracy of inversion algorithms to obtain the true temperature can reach 1% based on the secondary measurement method [6]. Inagaki and Ishii proposed three-color radiometers with different detection wavelength bands for the quantitative temperature * Authors to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Direct calibration method of effective wavelength for fiber-optic multi-wavelength pyrometer based on optimization function

Liang¹,

Wang²,

Wang³

et al. 2022

Meas. Sci. Technol.

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The calibration of the temperature and effective wavelength must be carried out before multi-wavelength pyrometers application. The current calibration method of the effective wavelength for the multi-wavelength pyrometers is the pyrometer wavelength function (PWF) method. However, for the actual calibration of the fiber-optic multi-wavelength pyrometer, the signal is too weak to obtain effective wavelength by the PWF. Therefore, a new calibration method based on optimization function for effective wavelength is proposed in this paper. The core idea of the innovation is to transform the effective wavelength calibration into an optimization problem, in which the effective wavelength can be solved directly by the MATLAB software using the temperature calibration data. Comparing with the PWF, the presented new method not only provides a novel way to obtain effective wavelength, but also avoids time-consuming due to the complicated process from the wavelength calibration. Finally, simulation and experimental results verify that the proposed method is effectiveness by using the function fmincon and minconPS from MATLAB software, in which the fmincon function is superior to the minconPS function for the efficiency and anti-noise performance.

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“…Optical thermometers based on thermal radiation or fluorescence are mainly applied in the wide temperature range measurement where contact temperature instruments cannot function, but they are not very good either . These optical thermometers are easily affected by the surrounding environment, and it is difficult to avoid the errors caused by low signal-to-noise ratio, stray light, and the decrease in fluorescence intensity. − Ultrasonic temperature sensors (UTSs) have been intensively studied in the past few decades and mainly applied to measure temperatures over 1600 °C. Prior American scientists have demonstrated the feasibility of the technology in light water reactor (LWR), high-temperature gas reactor (HTGR), and sodium fast reactor (SFR), where the ambient temperature exceeds 2900 °C. − UTSs have several advantages over other temperature sensors.…”

Section: Introductionmentioning

confidence: 99%

Antioxidation and High-Resolution Ultrasonic Temperature Sensor Based on Cr³⁺:MgAl₂O₄ Single Crystal Fiber

Wang

Zhang

et al. 2020

Crystal Growth & Design

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High-quality pure MgAl 2 O 4 and Cr 3+ :MgAl 2 O 4 crystal fibers were grown using laser heating pedestal growth method successfully. The antioxidation ultrasonic temperature sensors (UTSs) were designed using MgAl 2 O 4 single crystal fibers (SCFs) as the acoustic waveguide for the first time. The ultrasonic velocity and the unit sensitivity were investigated, which illustrate that the MgAl 2 O 4 SCF-UTS is more sensitive compared with the YAG SCF-UTS because of the order−disorder phase transition of the spinel. Furthermore, due to the lattice distortion induced by doping ions, the unit sensitivity was further optimized by 18% when using Cr 3+ :MgAl 2 O 4 crystal fiber as the probe, and the achieved unit sensitivity of 43.94 ns•C 1− •m −1 is the record for SCF-UTS. This work represents a feasible approach for high-resolution temperature sensing through the ultrasonic technique and crystal design and optimization.

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Spectral stray light effect on high-temperature measurements using a near-infrared multi-wavelength pyrometer

Cited by 21 publications

References 39 publications

Measurements of the directional spectral emissivity based on a radiation heating source with alternating spectral distributions

Measurements of the directional spectral emissivity based on a radiation heating source with alternating spectral distributions

Direct calibration method of effective wavelength for fiber-optic multi-wavelength pyrometer based on optimization function

Antioxidation and High-Resolution Ultrasonic Temperature Sensor Based on Cr³⁺:MgAl₂O₄ Single Crystal Fiber

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Spectral stray light effect on high-temperature measurements using a near-infrared multi-wavelength pyrometer

Cited by 21 publications

References 39 publications

Measurements of the directional spectral emissivity based on a radiation heating source with alternating spectral distributions

Measurements of the directional spectral emissivity based on a radiation heating source with alternating spectral distributions

Direct calibration method of effective wavelength for fiber-optic multi-wavelength pyrometer based on optimization function

Antioxidation and High-Resolution Ultrasonic Temperature Sensor Based on Cr3+:MgAl2O4 Single Crystal Fiber

Contact Info

Product

Resources

About

Antioxidation and High-Resolution Ultrasonic Temperature Sensor Based on Cr³⁺:MgAl₂O₄ Single Crystal Fiber