scholarly journals The Importance of Emissivity on Monitoring and Conservation of Wooden Structures Using Infrared Thermography

2019 ◽  
Author(s):  
João Crisóstomo ◽  
Rui Pitarma
Keyword(s):  
Infrared Thermography ◽  
Wooden Structures

scholarly journals An Approach Method to Evaluate Wood Emissivity

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Rui Pitarma ◽  
João Crisóstomo
Keyword(s):  
Infrared Thermography ◽  
Diagnostic Technique ◽  
Environmentally Sustainable ◽  
Built Heritage ◽  
Approach Method ◽  
Useful Life ◽  
Wooden Structures ◽  
Emissivity Measurements ◽  
Environmental Importance

Throughout the ages, wood has been used in constructions. Therefore, most of the built heritage is made with wooden structures. Wood is a renewable, versatile, long-lasting, and environmentally sustainable material. It is comfortable, is aesthetically very valued, and has crucial environmental importance. Thus, being a widely used long-life material, it requires techniques for monitoring its state of integrity. Inspection needs to be done in production, in the work site, and during its useful life. Infrared thermography (IRT) is a nondestructive, noninvasive, noncontact diagnostic technique. It evaluates the surface temperature of objects based on the emitted radiation. Nevertheless, the accurate measurement of temperature is strongly dependent on the emissivity value of the material. This paper presents an expedite method to measure wood emissivity values, using active infrared thermography. Wood samples of the Pinus pinaster species were used in the experiments. The thermal contrast of the samples was performed by applying three different heating methods: conduction, convection, and radiation. The emissivity values of the three tests were compared with each other and with data from the literature, showing satisfactory results and validating the presented methodology. The procedure can also be adopted, with some adjustments, to other materials and in situ analysis, contributing to emissivity measurements.

Measuring Facial Skin Temperature Changes Caused by Mental Work-Load with Infrared Thermography

2016 ◽  
Vol 136 (11) ◽  
pp. 1581-1585 ◽  
Author(s):  
Tota Mizuno ◽  
Takeru Sakai ◽  
Shunsuke Kawazura ◽  
Hirotoshi Asano ◽  
Kota Akehi ◽  
...  
Keyword(s):  
Skin Temperature ◽  
Infrared Thermography ◽  
Work Load ◽  
Facial Skin ◽  
Mental Work ◽  
Temperature Changes ◽  
Mental Work Load

Detection and characterisation of buried objects using infrared thermography enhanced by microwave heating

2002 ◽  
Author(s):  
Arnaud Jacotin ◽  
Elodie Bachelier ◽  
Francois Liousse ◽  
Pierre Millan
Keyword(s):  
Microwave Heating ◽  
Infrared Thermography ◽  
Buried Objects

1040 Use of doppler ultrasound and infrared thermography to evaluate scrotal insulation in Braford bulls

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 498-499
Author(s):  
F. A. Barca Junior ◽  
C. Koetz Junior ◽  
G. R. Pereira ◽  
S. R. Menegassi ◽  
F. Morotti ◽  
...  
Keyword(s):  
Infrared Thermography ◽  
Doppler Ultrasound ◽  
Scrotal Insulation

Screw Glued Wooden Structures in Sibelius Hall

2001 ◽  
Vol 85 (5) ◽  
pp. 24-27
Author(s):  
Matti Kairi
Keyword(s):  
Wooden Structures
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