A metrology enabled thermal imager for thermal vacuum testing

Bond, W; Panicker, Vivek; McMillan, Jamie; Simpson, Robert L.; Hayes, Michael M.; Machin, G; Casarosa, Gianluca; Etchells, James

doi:10.1080/17686733.2022.2056986

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Owing to this reason, several efforts are currently devoted to the development of image processing tools in order to enhance the visibility of the detected features concealed in the noise level [ 18 , 19 ]. In this respect, the development of high-quality thermal cameras and related equipment also plays a crucial role [ 20 , 21 ]. In addition, integrated approaches where PT is employed in combination with other techniques, able to provide complementary results, are attracting increasing attention because of the possibility of obtaining more accurate investigations [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Thermographic Imaging in Cultural Heritage: A Short Review

Dritsa

Orazi

Yao

et al. 2022

Sensors

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Over the recent period, there has been an increasing interest in the use of pulsed infrared thermography (PT) for the non-destructive evaluation of Cultural Heritage (CH). Unlike other techniques that are commonly employed in the same field, PT enables the depth-resolved detection of different kinds of subsurface features, thus providing helpful information for both scholars and restorers. Due to this reason, several research activities are currently underway to further improve the PT effectiveness. In this manuscript, the specific use of PT for the analysis of three different types of CH, namely documentary materials, panel paintings–marquetery, and mosaics, will be reviewed. In the latter case, i.e., mosaics, passive thermography combined with ground penetrating radar (GPR) and digital microscopy (DM) have also been deepened, considering their suitability in the open field. Such items have been selected because they are characterized by quite distinct physical and structural properties and, therefore, different PT (and, in some cases, verification) approaches have been employed for their investigations.

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Section: Introductionmentioning

confidence: 99%

Thermographic Imaging in Cultural Heritage: A Short Review

Dritsa

Orazi

Yao

et al. 2022

Sensors

View full text Add to dashboard Cite

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Development of an Approach for Monitoring Intermediate Level Nuclear Waste Using Thermal Imaging and Gamma Testing of Thermal Imager

Bond,

Hayes,

Simpson

et al. 2024

IEEE Trans. Nucl. Sci.

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Temperature-Automated Calibration Methods for a Large-Area Blackbody Radiation Source

Yang,

Cao,

Huang

et al. 2024

Sensors

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High-precision temperature control of large-area blackbodies has a pivotal role in temperature calibration and thermal imaging correction. Meanwhile, it is necessary to correct the temperature difference between the radiating (surface of use) and back surfaces (where the temperature sensor is installed) of the blackbody during the testing phase. Moreover, large-area blackbodies are usually composed of multiple temperature control channels, and manual correction in this scenario is error-prone and inefficient. At present, there is no method that can achieve temperature-automated calibration for a large-area blackbody radiation source. Therefore, this article is dedicated to achieving temperature-automated calibration for a large-area blackbody radiation source. First, utilizing two calibrated infrared thermometers, the optimal temperature measurement location was determined using a focusing algorithm. Then, a three-axis movement system was used to obtain the true temperature at the same measurement location on a large-area blackbody surface from different channels. This temperature was subtracted from the blackbody’s back surface. The temperature difference was calculated employing a weighted algorithm to derive the parameters for calibration. Finally, regarding experimental verification, the consistency error of the temperature measurement point was reduced by 85.4%, the temperature uniformity of the surface source was improved by 40.4%, and the average temperature measurement deviation decreased by 43.8%. In addition, this system demonstrated the characteristics of strong environmental adaptability that was able to perform temperature calibration under the working conditions of a blackbody surface temperature from 100 K to 573 K, which decreased the calibration time by 9.82 times.

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A metrology enabled thermal imager for thermal vacuum testing

Cited by 3 publications

References 3 publications

Thermographic Imaging in Cultural Heritage: A Short Review

Thermographic Imaging in Cultural Heritage: A Short Review

Development of an Approach for Monitoring Intermediate Level Nuclear Waste Using Thermal Imaging and Gamma Testing of Thermal Imager

Temperature-Automated Calibration Methods for a Large-Area Blackbody Radiation Source

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