The Thermal Colour and the Emissivity of Printed Pigments on Knitted Fabrics for Application in Diurnal Thermal Camouflage Garments

2019 ◽  
Vol 812 ◽  
pp. 127-133
Author(s):  
Catarina Pimenta ◽  
Carla Morais ◽  
Raul Fangueiro
Keyword(s):  
Skin Temperature ◽  
Thermal Imaging ◽  
Outdoor Environment ◽  
Thermal Manikin ◽  
Climatic Chamber ◽  
Thermal Tests ◽  
Knitted Fabrics ◽  
Thermal Imaging Camera ◽  
Thermal Images ◽  
Imaging Camera

This work compares thermal colour and emissivity of different pigments printed on to two types of jersey knitted fabrics (cotton and polyester). In order to analyze and differentiate the thermal colours of the knitted fabrics samples, diurnal and nocturnal thermal images of a female body were captured in an outdoor environment using a thermal imaging camera. Five pigments (white, black, yellow, magenta and cyan blue) were analyzed in a conditioned environment, simulating atmospheric (diurnal/nocturnal) and skin temperature, using a climatic chamber, a thermal manikin and a thermal imaging camera. The thermal tests allowed identifying the thermal colour of the printed pigments for application in the diurnal thermal camouflage garments.

Validity of a Tympanic Thermometer and Thermal Imaging Camera for Measuring Core and Skin Temperature during Exercise in the Heat

2019 ◽  
Vol 24 (1) ◽  
pp. 49-55
Author(s):  
Stephen P. Fenemor ◽  
Nicholas D. Gill ◽  
Stacy T. Sims ◽  
C. Martyn Beaven ◽  
Matthew W. Driller
Keyword(s):  
Skin Temperature ◽  
Thermal Imaging ◽  
Thermal Imaging Camera ◽  
Imaging Camera

scholarly journals Skin Temperature Distribution over Human Head Due to Handheld Mobile Phone Call using Thermal Imaging Camera

2019 ◽  
Vol 7 (2) ◽  
pp. 63-68
Author(s):  
Yazen A. Khaleel ◽  
Salah I. Yahya ◽  
Rahel Kh. Ibrahim
Keyword(s):  
Heat Transfer ◽  
Temperature Distribution ◽  
Mobile Phone ◽  
Skin Temperature ◽  
Thermal Imaging ◽  
Thermal Conduction ◽  
Human Head ◽  
Phone Call ◽  
Thermal Imaging Camera ◽  
Imaging Camera

The possible biological hazards due to the mobile phone electromagnetic (EM) field exposure are caused mainly by a temperature rise in tissue. Hence, the calculation of temperature in tissue may be more realistic than the calculation of specific absorption rate (SAR) due to the more direct relationship between temperature and safety. The heat transfer to human tissue due to a phone call is caused by a combined effect of conductive heat transfer caused by the basic non-microwave-related activity of the mobile phone and the absorption of the microwave. This paper investigates the role of heat transfer in living tissue due to thermal conduction. This is achieved using a thermal imaging camera to measure and map the skin temperature distribution over human head due to mobile phone EM emission. Two commercial mobile phone brands, that is, Apple iPhone 7 Plus and Huawei P20 Pro, are used at 1800 MHz cellular connection and approximate radiated power of 0.125 W to measure the skin temperature over human head at both, cheek and tilt position for 6 and 30 min calls. The results show that in spite of the direct proportion between the deposited SAR and temperature increase in human tissues, the heat transfer due to thermal conduction may not directly proportional to the SAR, where other factors may play important roles, for example, mobile phone chassis material, heated battery, antenna location inside the mobile phone, and mobile phone position in close proximity to head.

scholarly journals Thermal Imaging Study to Determine the Operational Condition of a Conveyor Belt Drive System Structure

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3258
Author(s):  
Dawid Szurgacz ◽  
Sergey Zhironkin ◽  
Stefan Vöth ◽  
Jiří Pokorný ◽  
A.J.S. (Sam) Spearing ◽  
...  
Keyword(s):  
Thermal Imaging ◽  
Thermal Condition ◽  
Thermal State ◽  
Operating Time ◽  
Imaging Study ◽  
Conveyor Belt ◽  
System Structure ◽  
Thermal Imaging Camera ◽  
Imaging Camera ◽  
Maintenance Service

The paper discusses the results of a study carried out to determine the thermal condition of a conveyor power unit using a thermal imaging camera. The tests covered conveyors in the main haulage system carrying coal from a longwall. The measurements were taken with a thermal imaging diagnostic method which measures infrared radiation emitted by an object. This technology provides a means of assessing the imminence and severity of a possible failure or damage. The method is a non-contact measuring technique and offers great advantages in an underground mine. The thermograms were analysed by comparing the temperature distribution. An analysis of the operating time of the conveyors was also carried out and the causes of the thermal condition were determined. The main purpose of the research was to detect changes in thermal state during the operation of a belt conveyor that could indicate failure and permit early maintenance and eliminate the chance of a fire. The article also discusses the construction and principle of operation of a thermal imaging camera. The findings obtained from the research analysis on determining the thermal condition of the conveyor drive unit are a valuable source of information for the mine’s maintenance service.

Rewetting Analysis of Hot Moving Surface by Round Water Jet Impingement

2018 ◽  
Author(s):  
Avadhesh Kumar Sharma ◽  
Mayank Modak ◽  
Santosh K. Sahu
Keyword(s):  
Experimental Investigation ◽  
Reynolds Number ◽  
Thermal Imaging ◽  
Transient Temperature ◽  
Axial Distance ◽  
Initial Surface ◽  
Moving Plate ◽  
Thermal Imaging Camera ◽  
Plate Velocity ◽  
Imaging Camera

Impinging jets are commonly utilized in the run-out table (ROT) cooling in the hot rolling process in steel manufacturing industries. The phenomenon of rapid cooling of a sufficiently hot surface is termed as the quenching. The present paper reports the rewetting behavior of 0.15 mm thick hot moving stainless steel foil (SS-304) by circular impinging jet from bottom side through experimental investigation. The transient temperature of the hot foil is recorded by using thermal imaging camera (A655sc, FLIR system). Tests are performed for a varied range of Reynolds number (Re = 2500–10000), nozzle to plate distance (z/d = 6), moving plate velocity (0–40 mm/s) and initial surface temperature 500±10 °C. Transient temperature obtained from thermal imaging camera is used to evaluate rewetting time and rewetting velocity. Based on the experimental investigation correlation has been proposed to predict non-dimensional rewetting velocity as a function of various parameters, namely, Reynolds number, non-dimensional axial distance and moving plate velocity.

MOEMS thermal imaging camera

2008 ◽  
Author(s):  
M. Fatih Toy ◽  
Onur Ferhanoglu ◽  
Hamdi Torun ◽  
F. Levent Degertekin ◽  
Hakan Urey
Keyword(s):  
Thermal Imaging ◽  
Thermal Imaging Camera ◽  
Imaging Camera

scholarly journals Towards Collection of Smart City Data for Cloud Storage Using UAVs

2021 ◽  
Vol 8 (1) ◽  
pp. 4-9
Author(s):  
Ilia Ageev ◽  
Wolfram Hardt
Keyword(s):  
Data Collection ◽  
Thermal Imaging ◽  
Smart City ◽  
Cloud Storage ◽  
Traffic Analysis ◽  
Thermal Imaging Camera ◽  
Advantages And Disadvantages ◽  
Cloud Server ◽  
Imaging Camera

The article describes the methodology and process of collecting smart city data using drones for cities that do not have a sufficiently developed infrastructure. For storage and subsequent analysis of data, a cloud server is required; TUC DriveCloud is presented as an example of such a server in the article. Traffic analysis and building inspection are described as examples of drone data collection tasks. The advantages and disadvantages of collecting data using a thermal imaging camera are also discussed using the example of the problem of detecting and tracking the movement of people.

Applications of an unmanned aerial vehicle and thermal‐imaging camera to study ducks nesting over water

2020 ◽  
Vol 91 (4) ◽  
pp. 409-420
Author(s):  
Jacob D. Bushaw ◽  
Kevin M. Ringelman ◽  
Michael K. Johnson ◽  
Trenton Rohrer ◽  
Frank C. Rohwer
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Thermal Imaging ◽  
Thermal Imaging Camera ◽  
Imaging Camera ◽  
Aerial Vehicle
Sign in / Sign up

Export Citation Format

Share Document