Study on Several Issues of the Infrared-Thermography Method on Detecting the Defects of External Wall

2012 ◽  
Vol 446-449 ◽  
pp. 2983-2987
Author(s):  
Ji Tong Jiang ◽  
Jun An ◽  
Xiao Yi Fan ◽  
De Run Du ◽  
Song Yang
Keyword(s):  
Infrared Thermography ◽  
Thermal Imaging ◽  
Low Cost ◽  
Testing Time ◽  
Optimum Time ◽  
Infrared Thermal Imaging ◽  
External Wall ◽  
Rise Rate ◽  
Distinguishing Features

In recent years, Infrared thermal imaging technology has been widely used in the detection of construction quality relied on its distinguishing features of non-destruction, non-contact and low cost. But, there are many problems in practice, such as it is difficult to quantify the detection results and determine the best testing time. Aimed to several issues of the infrared-thermography method on detecting the defects of external wall, this paper discusses the determination of the optimum time and puts forward a method which can decide the defects quantitatively; it is the method of temperature rise rate.

Determination of Hydro Generator Efficiency Using Infrared Thermal Imaging Techniques

2011 ◽  
Vol 26 (4) ◽  
pp. 1134-1139 ◽  
Author(s):  
Edson da Costa Bortoni ◽  
Roberto Teixeira Siniscalchi ◽  
José Antônio Jardini
Keyword(s):  
Thermal Imaging ◽  
Imaging Techniques ◽  
Infrared Thermal Imaging

scholarly journals Predicting lipoabdominoplasty complications with infrared thermography: a delta-R analysis

2021 ◽  
Vol 48 (5) ◽  
pp. 553-558
Author(s):  
Patricia Rodrigues Resende ◽  
Marcos Leal Brioschi ◽  
Franciele De Meneck ◽  
Eduardo Borba Neves ◽  
Manoel Jacobsen Teixeira
Keyword(s):  
Infrared Thermography ◽  
Thermal Imaging ◽  
Clinical Case ◽  
Healing Process ◽  
Postoperative Evaluation ◽  
Infrared Thermal Imaging ◽  
Thermal Index ◽  
The Difference ◽  
Mapping Techniques ◽  
Therapeutic Decision Making

The diagnosis of the main complications resulting from lipoabdominoplasty has not yet been standardized. Infrared thermal imaging has been used to assess possible complications, such as necrosis and changes in micro- and macro-circulation, based on perforator mapping techniques, among others. The objective of this study was to present two clinical cases involving thermal imaging monitoring of the healing process of lipoabdominoplasty in the immediate postoperative evaluation and its preliminary results. Infrared thermography was performed 24 hours after the operation and on postoperative days 5, 25, and 27. In clinical case 1, it was found that the delta-R (∆TR)–defined as the difference in minimum temperature between the highest and lowest points in the SA3 region (caution suction area) following the classification established by Matarasso–was 0.4°C at 24 hours after surgery and decreased to 0.1°C on a postoperative day 5. There were no complications in this case. In contrast, in clinical case 2, the ∆TR was 1.7°C at 24 hours after surgery (upon hospital discharge) and remained high, at 2.2°C, on postoperative day 5. A higher ∆TR was found in the second patient, who developed necrosis of the surgical wound. The ∆TR thermal index may be a new tool for predicting possible complications, complementing the clinical evaluation and therapeutic decision-making.

scholarly journals APPRAISAL OF MOISTURE PROBLEM OF INHERITANCE BUILDING ENVELOPE ASSEMBLIES VIA VISIBLE AND INFRARED THERMOGRAPHY METHODS

2015 ◽  
Vol 75 (5) ◽  
Author(s):  
Ting Siew Jing ◽  
Md Azree Othuman Mydin ◽  
Nangkula Utaberta
Keyword(s):  
Infrared Thermography ◽  
Thermal Imaging ◽  
Building Envelope ◽  
Temporary Reduction ◽  
Infrared Thermal Imaging ◽  
Thermal Images ◽  
Heritage Building ◽  
Moisture Performance ◽  
Infrared Thermal Images ◽  
Wall Assembly

In order to gauge the moisture performance of walls and roofs there is a need to investigate the paths of moisture penetrating into the wall assembly, how long and where the moisture stays, and whether it causes temporary reduction of performance or permanent damage. The non-contact safe nature and usefulness in temperature measurement of infrared thermography have made it a popular instrument for building diagnostics. Hence, this paper depicts a documentation process which makes use of both visible and infrared thermal images to identify moisture anomalies in heritage building envelope assemblies. In sequence to achieve the purpose, visible and infrared thermal images are recorded for comparison and further analysis. It can be concluded that infrared thermal imaging camera is useful for identification of moisture problems in building façade, whereas combination of both visible and infrared thermal imaging methods produces a more advanced, accurate and effective approach for building diagnostics.

Determination of thermal diffusivity of soil using infrared thermal imaging

2011 ◽  
Vol 48 (8) ◽  
pp. 1295-1302 ◽  
Author(s):  
Jayantha Kodikara ◽  
Pathmanathan Rajeev ◽  
Nicholas. J. Rhoden
Keyword(s):  
Thermal Diffusivity ◽  
Thermal Imaging ◽  
Infrared Thermal Imaging

Noninvasive determination of burn depth in children by digital infrared thermal imaging

2012 ◽  
Vol 18 (6) ◽  
pp. 061204 ◽  
Author(s):  
Jose David Medina-Preciado ◽  
Eleazar Samuel Kolosovas-Machuca ◽  
Ezequiel Velez-Gomez ◽  
Ariel Miranda-Altamirano ◽  
Francisco Javier González
Keyword(s):  
Thermal Imaging ◽  
Infrared Thermal Imaging ◽  
Burn Depth

scholarly journals PSV-3 Detection of Bruising in Holstein Slaughter Cows with Infrared Thermography

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 158-158
Author(s):  
Ashlynn Kirk ◽  
Kurt Vogel
Keyword(s):  
Infrared Thermography ◽  
Thermal Imaging ◽  
Heat Emission ◽  
Human Consumption ◽  
Infrared Thermal Imaging ◽  
Cull Cows ◽  
Imaging Camera ◽  
Trim Loss ◽  
The Impact ◽  
The Relationship

Abstract Identifying severe bruising in livestock before slaughter is valuable because bruises are likely a source of pain for the animal that cannot be seen by visual inspection. This bruising may result in major trim losses because bruised tissue is considered unfit for human consumption. The objective of this study was to determine if bruising could be detected under the hide of live Holstein cull cows with infrared thermal imaging technology. A FLIR E8 thermal imaging camera was utilized to capture heat emission images pre-hide removal and post hide removal for 36 Holstein cull cows. Images were collected approximately 2 m from each cow and associated carcass images were examined on FLIR Tools software to determine if and where inflammation was detected on the carcass. Trimming occurs throughout the slaughter process, but carcasses may be ‘railed out’ if additional trimming is necessary. Trim loss was collected from railed out carcasses and weighed. The impact of rail-out status on trim loss was significant (P < 0.0001). Carcasses that were railed out (n = 15) yielded 16.2 ± 2.0 kg of trim loss. Carcasses that were not railed out (n = 21) did not experience additional trim loss. Carcasses railed out for additional trimming where inflammation suggested bruising existed (n = 7) yielded 21.0 ± 4.8 kg of trim loss. Carcasses railed out for trimming where thermography did not detect bruising (n = 4) yielded 12.6 ± 6.4 kg of trim loss. The relationship between thermographic detection of bruises and trim loss among railed-out carcasses was not significant (P = 0.3200). Inflammation that predicted rail-out events was 63.64% while carcasses in which rail-out was not detected by thermography was 36.36%. It appears that infrared thermography has potential to identify carcass bruising but additional investigation is warranted to understand its limitations.

Evaluation of Package Defects by Thermal Imaging Techniques

2002 ◽  
Author(s):  
Yongmei Liu ◽  
Rajen Dias
Keyword(s):  
Infrared Thermography ◽  
Thermal Imaging ◽  
High Speed ◽  
Imaging Techniques ◽  
Thermal Response ◽  
Analysis Tool ◽  
Nondestructive Analysis ◽  
Ir Camera ◽  
External Heating

Abstract Study presented here has shown that Infrared thermography has the potential to be a nondestructive analysis tool for evaluating package sublayer defects. Thermal imaging is achieved by applying pulsed external heating to the package surface and monitoring the surface thermal response as a function of time with a high-speed IR camera. Since the thermal response of the surface is affected by the defects such as voids and delamination below the package surface, the technique can be used to assist package defects detection and analysis.

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