The hyperspectral thermal imager: High spectral and spatial resolution thermal imaging from a 6U platform

2021 ◽  
Author(s):  
Robert Wright ◽  
Paul Lucey ◽  
Miguel Nunes ◽  
Sarath Gunapala ◽  
Sir Rafol ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
Thermal Imaging ◽  
Thermal Imager

THE PROCESS OF THERMAL IMAGING INSPECTION OF BUILDING ENVELOPES

2020 ◽  
Vol 12 (4) ◽  
pp. 66-72 ◽  
Author(s):  
Aleksandr Ignatyuk ◽  
S. Nikolenko ◽  
Svetlana Sazonova
Keyword(s):  
Heat Flux ◽  
Energy Efficiency ◽  
Thermal Imaging ◽  
Heat Flux Density ◽  
Thermal Imager ◽  
Federal Law ◽  
Building Envelopes ◽  
Digital Thermometer ◽  
The Russian Federation ◽  
Energy Survey

The paper analyzes and develops proposals to improve the energy efficiency of the building of MBOU «Lyceum No. 65» in Voronezh. The energy survey was carried out in order to comply with the requirements of Article 13 of Federal Law of November 23, 2010 No. 261-ФЗ «On Energy Saving and on Improving Energy Efficiency and on Amending Certain Legislative Acts of the Russian Federation». The survey was carried out using a Testo 881-2 thermal imager, a digital thermometer Testo 905-T2, a meter of heat flux density and ITP temperature - MG4.03 / 5 (I) «Potok».

High Resolution Thermal Imaging of Integrated Circuits

2007 ◽  
Vol 1022 ◽  
Author(s):  
Gilles Tessier ◽  
Mathieu Bardoux ◽  
Céline Filloy ◽  
Danièle Fournier
Keyword(s):  
High Resolution ◽  
Integrated Circuits ◽  
Spatial Resolution ◽  
Thermal Imaging ◽  
Optical Method ◽  
Near Infrared ◽  
Silicon Substrates ◽  
Active Layers ◽  
Ultraviolet Range ◽  
Interesting Solution

AbstractThermoreflectance is an non contact optical method using the local reflectivity variations induced by heating to infer temperature mappings, and can be conducted at virtually any wavelength. In the visible, the technique is now well established. It can probe temperatures through several micrometers of transparent encapsulation layers, with sub-micron spatial resolution and 100 mK thermal resolution. In the ultraviolet range, dielectric encapsulation layers are opaque and thermoreflectance gives access to the surface temperature. In the near infrared, thermoreflectance is an interesting solution to examine chips turned upside down, since these wavelengths can penetrate through silicon substrates and give access to the temperature of the active layers themselves. Here, we explore the possibilities of each wavelength range and detail the CCD-based thermal imaging tools dedicated to the high resolution inspection of integrated circuits.

Back side thermal imaging of integrated circuits at high spatial resolution

2007 ◽  
Vol 90 (17) ◽  
pp. 171112 ◽  
Author(s):  
G. Tessier ◽  
M. Bardoux ◽  
C. Boué ◽  
C. Filloy ◽  
D. Fournier
Keyword(s):  
Integrated Circuits ◽  
Spatial Resolution ◽  
Thermal Imaging ◽  
High Spatial Resolution ◽  
Back Side

Research on Infrared Thermal Imaging Technique for the Sidewall of LNG Storage Tank

2014 ◽  
Vol 511-512 ◽  
pp. 425-428
Author(s):  
Jie Jiang ◽  
Wen Da Zhu ◽  
Gong Sheng Yang ◽  
Jing Peng Yan ◽  
Nan Jin Gao ◽  
...  
Keyword(s):  
Natural Gas ◽  
Thermal Imaging ◽  
Storage Tank ◽  
Imaging Technique ◽  
Temperature Drop ◽  
Liquefied Natural Gas ◽  
Thermal Imager ◽  
Gas Temperature ◽  
Infrared Thermal Imaging ◽  
Lng Tank

Liquefied natural gas (LNG) is obtained by cooling the gas temperature to -162 degree. Problems with the steel cans, the insulation layer or the concrete tank of the LNG tank can lead to changes of the temperature, local temperature decreases, and the safety of the tank is threatening. Through the combination of many sets of infrared thermal imager to monitor the temperature of the LNG storage tank’s sidewall, analyze the heat imagine, establish the corresponding relationship between the locations on the sidewall of the LNG tank and on the heat imagine, determine the position of the temperature point on the tank wall. Infrared thermal imaging technique for the sidewall of LNG storage tank can find out the heat abnormal conditions and fixing the temperature drop area in time, and provide powerful guarantee for the safe storage of the liquefied natural gas.

scholarly journals Comparative Analysis of Thermovision Images of Healthy Young Men with Different Terms of Adaptation to Conditions of the North

2021 ◽  
pp. 36-42
Author(s):  
IV Averyanova ◽  
SI Vdovenko
Keyword(s):  
Skin Temperature ◽  
Thermal Imaging ◽  
Thermal Sensitivity ◽  
Young Men ◽  
Young Male ◽  
The Body ◽  
Thermal Imager ◽  
Third Generation ◽  
The North ◽  
Zero Generation

Introduction. The correlation between skin temperature and cutaneous blood flow is a factor that influences thermal imaging of the body in response to thermoregulation. The objective of our study was to identify features of thermal images of young male permanent residents of the Russian North belonging to different generations. Materials and methods. Thermography was carried out using a thermal imaging camera (FLIR SC620 thermal imager, Sweden), providing long-wave (7.5–13 μm) imaging with a thermal sensitivity of 0.1 °С. Quantitative analysis of thermovision images was performed for eight sites of the body captured from the front and back in a sitting position. We examined 90 young healthy men aged 17 to 21 years, permanently residing in the Magadan Region. Depending on the duration of adaptation to extreme conditions of the North, all subjects were divided into four groups: adapting migrants (“zero generation”) and those born in the North in the first, second and third generations. Results. We established a significant increase in skin temperature at all measured body sites in the series from adapting migrants (“zero generation”) to the natives in the first to third generation. The maximum differences were observed for the average temperature of the forehead, abdomen, and lower back, reaching 0.97, 1.04, and 0.98 °C, respectively. It should be noted that the young men of the city of Magadan had a higher average skin temperature than those living in optimal climatic and geographical conditions of Central Russia and Eastern Europe. The smallest difference (0.43 °С) was registered for breast temperature between the migrants and representatives of the third generation. Conclusions. Our findings prove compensatory and adaptive physiological changes occurring in the body over time to reduce adverse effects of the cold environment. This reorganization of the body is achieved through optimization of the thermoregulatory mechanism and changes in vegetative skin vasomotor responses.

scholarly journals Quantifying and Trending the Thermal Signal as an Index of Perfusion in Patients Sedated with Propofol

Healthcare ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 87
Author(s):  
Surender Rajasekaran ◽  
Mark Pressler ◽  
Jessica Parker ◽  
Alex Scales ◽  
Nicholas Andersen ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Thermal Imaging ◽  
Smart Phone ◽  
Lower Extremities ◽  
Thermal Imager ◽  
Non Invasive ◽  
Thermal Signal ◽  
Significant Difference ◽  
Upper And Lower Extremities ◽  
The Subject

We examined the feasibility of a thermal imager smart phone attachment as a potential proxy of skin perfusion by assessing shifts in skin temperature following administration of the vasodilatory anesthetic propofol. Four limb distal extremity thermal images were taken before propofol administration and at 5-min intervals thereafter during monitored anesthesia. The study enrolled 60 patients with ages ranging from 1.3 to 18 years (mean 10.7 years old) from April 2016 to January 2017. Five minutes following propofol administration, the median temperature differential (delta temperature) between the core and extremity skin significantly decreased in both upper and lower extremities, 7.9 to 3.6 °C (p < 0.0001) and 12.1 to 6.9 °C (p < 0.0001), respectively. By 10 min, the median delta temperatures further decreased significantly in the upper (p = 0.0068) and lower extremities (p = 0.0018). There was a concordant decrease in mean blood pressure (MBP). These trends reverted back when the subject awoke. There was no significant difference between the four operators who used the camera (p = 0.0831). Blood pressure and time temperature change was the only value of significance. Mobil thermal imaging represents a non-invasive modality to assess perfusion in real time. Further studies are required to validate the clinical utility.

scholarly journals Evaluation of the Size-of-Source Effect in Thermal Imaging Cameras

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 607
Author(s):  
Igor Pušnik ◽  
Gregor Geršak
Keyword(s):  
Thermal Imaging ◽  
Region Of Interest ◽  
Thermal Imager ◽  
Direct Evaluation ◽  
Source Effect ◽  
Quantitative Measurements ◽  
Central Pixel ◽  
Custom Made ◽  
Temperature Levels

In numerous applications, including current body temperature monitoring in viral pandemic management, thermal imaging cameras are used for quantitative measurements. These require determination of the measurement accuracy (error) and its traceability (measurement uncertainty). Within error estimation, the size-of-source effect (SSE) is an important error source. The SSE is the relation between the physical size of a target and the instrument’s nominal target size. This study presents a direct evaluation of the error due to the SSE. A stable and uniform temperature, generated by blackbodies, was measured by a high-quality thermal imager. To limit the generated radiation, custom-made blocking tiles with different apertures were used. Effects of aperture shapes and positions, camera-target distances and temperature levels on the error were investigated. The study findings suggest that due to the SSE the measured temperatures are too low, especially at longer camera-target distances. The SSE error depends on the number of pixels available and included into the region of interest, for which the accurate measurement is about to be performed. For an accurate temperature measurement, an array of at least 10 × 10 pixels should be exposed to the observed target radiation, while 3 × 3 central pixel area should be included in the temperature calculation.

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