The Use of Thermal Imaging Techniques as a Method of Monitoring the New Born

2019 ◽  
pp. 35-39
Author(s):  
Catalina Luca ◽  
C. Corciovă ◽  
D. Andriţoi ◽  
R. Ciorap
Keyword(s):  
Thermal Imaging ◽  
Imaging Techniques ◽  
New Born

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.

Fruit Ripeness Estimation for Avocado Using Thermal Imaging

2018 ◽  
Author(s):  
Sathish K. Gurupatham ◽  
Erhan Ilksoy ◽  
Nick Jacob ◽  
Kevin Van Der Horn ◽  
Fahad Fahad
Keyword(s):  
Thermal Imaging ◽  
Imaging Techniques ◽  
Scientific Enterprise ◽  
Thermal Images ◽  
Novel Technologies ◽  
Different Temperatures ◽  
Visible Images ◽  
Specific Heat Capacities ◽  
Analytical Approaches ◽  
Non Destructive

Novel technologies have always been an indispensable part of the scientific enterprise and a catalyst for new discoveries. The invisible radiation patterns of objects are converted into visible images called thermograms or thermal images. Thermal images can be utilized to estimate the ripeness of some fruits which do not change their color from yellow to green when they are ripe. Thermal imaging techniques are very helpful since color and fluorescent analytical approaches cannot be applied to these fruits. In this work, it is shown that different ripeness levels of avocado (Hall type) using a non-destructive method called thermal imaging, in two dimensional spaces. The work is based on the fact that fruits have different specific heat capacities at different temperatures, thus making their thermal images clear indicators of ripeness.

scholarly journals Non-Destructive Characterization of Railway Materials and Components with Infrared Thermography Technique

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4077 ◽  
Author(s):  
Jeongguk Kim
Keyword(s):  
Infrared Thermography ◽  
Thermal Imaging ◽  
High Speed ◽  
Hot Spot ◽  
Imaging Techniques ◽  
Brake Disc ◽  
Ir Thermography ◽  
Contact Mode ◽  
Non Destructive Evaluation ◽  
Non Destructive

Infrared (IR) thermography technology is one of the leading non-destructive evaluation (NDE) techniques based on infrared detection. Infrared thermography, in particular, has the advantage of not only being used in non-contact mode but also provides full images, real-time inspection, and relatively fast results. These advantages make it possible to perform thermal imaging analysis of railway materials and/or components, such as brake disc simulation, monitoring of abnormal heat generation, and monitoring of temperature changes, during mechanical tests. This study introduces the current state of research on railway materials and/or components using IR thermography technology. An attempt was made to characterize the deterioration of electrical equipment of diesel electric locomotives using infrared thermal imaging techniques. In addition, surface temperature monitoring was performed during tensile testing of railway steels using a high-speed infrared camera. Damage evolution due to the hot spot generation of railway brake discs was successfully monitored using high-speed IR cameras. In this paper, IR thermal imaging technology, used as a non-destructive evaluation analysis in the railway field, was introduced, and the results of recent research are presented.

Transient Thermal Response of Skin Tissue

2008 ◽  
Author(s):  
Muge Pirtini Cetingul ◽  
Cila Herman
Keyword(s):  
Temperature Distribution ◽  
Surface Temperature ◽  
Thermal Imaging ◽  
Imaging Techniques ◽  
Thermal Response ◽  
Sensitivity Study ◽  
Subsurface Structures ◽  
Surface Temperature Distribution ◽  
Transient Thermal ◽  
Transient Thermal Response

The increased availability of thermal imaging cameras has led to a growing interest in the application of infrared imaging techniques to the detection and identification of subsurface structures. These imaging techniques are based on the following principle: when a surface is heated or cooled, variations in the thermal properties of a structure located underneath the surface result in identifiable temperature contours on it. These contours are characteristic of the structure’s shape, depth, and its thermal properties. We study the use of the transient thermal response of skin layers to determine to which extent the surface temperature distribution reflects the properties of subsurface structures, such as lesions. A numerical model using the finite element method is described to obtain this response and key results are reported in the paper. A sensitivity study is conducted first to better understand the thermal response of the system and the role of various system and model parameters. We explore the extent to which we are able to draw conclusions regarding the size, depth and nature of subsurface structures and accuracy of these conclusions based on the surface temperature response alone. This work validates the idea of examining the transient thermal response and using thermal imaging as a solution for lesion identification. A sensitivity study of surface temperature distribution to variations of thermophysical properties, blood perfusion rate, and thicknesses of skin layers is performed. It is observed that variations in these parameters have little impact on the surface temperature distribution. The work reported in the paper is a portion of a comprehensive research effort involving experiments on a phantom model as well as measurements on patients. Future work will focus on comparing the results of our 2D numerical modeling efforts with the experimental results using a skin tissue-mimicking phantom. Knowledge gained from the modeling and experimental efforts will be utilized in characterizing lesions in patient studies. The focus of this paper is the computational sensitivity analysis.

scholarly journals Huanglongbing (Citrus Greening) Detection Using Visible, Near Infrared and Thermal Imaging Techniques

Sensors ◽  
2013 ◽  
Vol 13 (2) ◽  
pp. 2117-2130 ◽  
Author(s):  
Sindhuja Sankaran ◽  
Joe Maja ◽  
Sherrie Buchanon ◽  
Reza Ehsani
Keyword(s):  
Thermal Imaging ◽  
Near Infrared ◽  
Imaging Techniques ◽  
Citrus Greening

Measurement of Surface Temperature Using a Laser-Induced Fluorescence Thermal Imaging System

1993 ◽  
Author(s):  
M. K. Chyu ◽  
D. J. Bizzak
Keyword(s):  
Thermal Imaging ◽  
Imaging System ◽  
Imaging Techniques ◽  
Calibration Procedure ◽  
Quality Data ◽  
Test Surface ◽  
Temperature Sensitive ◽  
Iccd Camera ◽  
Thermographic Phosphors ◽  
Thermal Imaging System

This paper describes a novel, non-intrusive thermal imaging system based on the fluorescence properties of an europium-doped lanthanum oxysulfide (Eu+3:La2O2S) thermographic phosphor. In this system the phosphor coating on a test surface is excited by a pulsed Nd:YAG laser. The resulting fluorescent emission of the temperature-sensitive 512 nm transition, along with that of the relatively temperature independent 620 nm transition, is acquired using an image-intensified charged coupled device (ICCD) camera. The ratio of the 512- and 620-nm emissions, integrated over a set gating period, is then correlated with temperature. Quality data obtained from a calibration procedure have demonstrated that the present approach can be more advantageous than many existing thermal imaging techniques. The system has been specifically designed to provide two-dimensional temperature measurements with high accuracy and exceptional spatial resolution. Because of the extremely short fluorescent lifetimes of various thermographic phosphors (∼μs), applicability of the technique to fast-moving or rotating surfaces is very promising.

Toward an Unobtrusive Measure of Emotion During Interaction: Thermal Imaging Techniques

2012 ◽  
pp. 225-266 ◽  
Author(s):  
Dawn T. Robinson ◽  
Jody Clay-Warner ◽  
Christopher D. Moore ◽  
Tiffani Everett ◽  
Alexander Watts ◽  
...  
Keyword(s):  
Thermal Imaging ◽  
Imaging Techniques ◽  
Unobtrusive Measure

Imaging techniques to extract information: New born baby's skin birthmark

2017 ◽  
Author(s):  
Mohammad Asaduzzaman Rasel ◽  
Mohammad Hasan ◽  
Abdus Samad Azad ◽  
Shahanaz Akther
Keyword(s):  
Imaging Techniques ◽  
New Born ◽  
Extract Information

DEFECT DETECTION IN CONCRETE STRUCTURES USING THERMAL IMAGING TECHNIQUES

2010 ◽  
Vol 35 (4) ◽  
pp. 39-43 ◽  
Author(s):  
S. Bhalla ◽  
S. Tuli ◽  
R. Arora
Keyword(s):  
Defect Detection ◽  
Thermal Imaging ◽  
Imaging Techniques ◽  
Concrete Structures
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